Civil litigation/class actions: defense in United States

Cleary Gottlieb Steen & Hamilton

Cleary Gottlieb Steen & Hamilton excels at defending high-profile class actions and follow-on claims, particularly within a cross-border context. The firm is lauded for being ‘deeply knowledgeable in numerous industries‘ and ‘incredibly responsive at the right level of specificity for the question at hand.’  Acting for a host of household name companies, George Cary is well versed at the intersection of antitrust with intellectual property and high-technology markets.  Massive multi-district antitrust litigation, often relating to monopolization and conspiracy claims, are part of Leah Brannon's portfolio. The recent activity of  ‘strong and tough negotiator’ Jeremy Calsyn in antitrust litigation includes price-fixing matters and cases relating to the automotive industry, while former FTC Bureau of Competition director Bruce Hoffman is experienced in defending clients before federal and state courts in class actions and standalone private suits. All mentioned attorneys are based in the Washington DC office, bar Heather Nyong’o, who joined the firm’s Palo Alto office in November 2021 from WilmerHale. Mark Nelson and Alexis Collins left the practice in 2021 for in-house positions.

Other key lawyers:

George Cary; Leah Brannon; Jeremy Calsyn; Bruce Hoffman; Heather Nyong’o; Brian Byrne ; Kenneth Reinker


‘Cleary has a very strong antitrust practice. They are deeply knowledgeable in numerous industries which is essential when providing antitrust guidance. Also, they understand the intricacies of the approval process which enables them to help set realistic expectations of results.’

‘Cleary is incredibly responsive at the right level of specificity for the question at hand. With the premium, it is important to work with individuals that gauge the right level of review and response and not overwork an issue. The responsiveness extends to both small and large matters. Also, Cleary is proactive. They want to enable you to be successful and looks for opportunities to provide indirect guidance and assistance.

‘Brian Byrne is an exceptional partner and represents the firm extremely well.’

‘The antitrust teams and litigation teams are outstanding, and top of their field. The US antitrust group is best in class, with a depth of experience across all areas of practice that is unmatched. They are great at deal, regulatory investigations, and litigation. The general litigation and class action defense work is also best in class. The quality of legal representation and creativity in defense theories, combined with depth of experience, is second to none. They are the go-to firm for bet the company matters and any time the stakes are high.’

‘The firm’s Washington team, led by Jeremy Calsyn is very strong and exceptional. They effectively defended and dismissed the class action claim. Jeremy was a strong and tough negotiator at the settlement discussion and brought us a favorable outcome.’

Key clients

T-Mobile USA

Juul Labs Inc.

Keurig Green Mountain, Inc

Varsity Brands


Walgreens BootsAlliance, Inc.

Molson Coors Beverage Company

Fox Corporation

Work highlights

  • Representing Juul Labs, Inc. in connection to its a $12.8 billion investment by Altria Group, and in subsequent FTC Part 3 administrative proceedings and private antitrust class actions in the Northern District of California.
  • Defending Keurig Green Mountain, Inc. against broad-ranging monopolization claims in massive multi-district litigation involving class, competitor, and distributor cases challenging, among other things, predatory product design and exclusive contracts.

Cravath, Swaine & Moore LLP

The antitrust practice at Cravath, Swaine & Moore LLP handles contentious matters ranging from allegations of price-fixing, monopolization, and coordination in output to industry-wide conspiracy allegations for a vast variety of sectors and clients. Led by Christine Varney, the department is sought after for its experience and success rate in high-stakes civil litigation and class action cases, regularly handling matters at the intersection of antitrust with other areas, such as securities and intellectual property. ‘Standout star’ Kevin Orsini has defended claims on behalf of household names including American Express and Time Warner, while Evan Chesler brings to bear outstanding expertise in bet-the-company cases across a large range of industries. Other names to note are Peter Barbur, whose expertise spans antitrust issues such as securities litigation and other unlawful competition claims, as well as former FTC Assistant Director Daniel Zach who joined the firm at the end of 2021. All mentioned attorneys are located in the firm’s New York office.

Practice head(s):

Christine Varney

Other key lawyers:

Kevin Orsini; Peter Barbur; Evan Chesler; Daniel Zach; Katherine Forrest


‘Cravath has the smartest, most intense litigators in the country.’

‘Kevin Orsini is the standout star at Cravth.’

‘In large multi-defendant cases, Cravath gets the mix of leadership and collaboration right.’

Key clients

Alcon Laboratories, Inc.

American Express Company (“AmEx”)

Biosense Webster, Inc.

Blue Cross Blue Shield Association

Epic Games, Inc.

Facebook, Inc.

Illumina, Inc.

Morgan Stanley

Novartis Pharmaceuticals Corporation

Occidental Petroleum Corporation

Qualcomm Incorporated

Robinhood Markets, Inc.

Work highlights

  • Representing Qualcomm Incorporated and winning a major Ninth Circuit decision vacating a district court ruling that had certified a class estimated to be the size of the entire U.S. adult population.
  • Representing Epic Games in two separate antitrust actions against Apple and Google, alleging that the companies are engaged in anticompetitive behavior in the distribution of software applications on mobile devices and in the processing of consumers’ payments for digital content used within mobile apps.
  • Representing Robinhood as lead counsel in dozens of lawsuits, including numerous putative class actions, involving antitrust and various other claims arising out of Robinhood’s decision to temporarily restrict trading in certain securities in the face of unprecedented market volatility.

Gibson, Dunn & Crutcher LLP

Class actions, private antitrust litigation, and intellectual property-related issues form part of Gibson, Dunn & Crutcher LLP‘s antitrust and competition practice portfolio. The firm represents some of the country’s biggest corporations in high-stakes and bet-the-company cases, with particular strengths in the media, entertainment and high-tech sectors. Washington DC-based Stephen Weissman and San Francisco-based Rachel Brass co-chair the department and both handle class actions including monopolization claims and price-fixing in various industries. In Washington DC, Cynthia Richman focuses on antitrust issues pertaining to tying, bundling and other single-firm conduct theories, while Rich Parker represents clients before enforcement agencies and courts in a host of antitrust-related matters. Daniel Swanson, who is active in both the firm’s Los Angeles and Brussels locations, has vast experience in defending clients based on a wide range of alleged conduct, such as monopolization and dominance claims. In April 2022, former Federal Trade Commission Chief of Staff Svetlana S. Gans joined the firm in DC.

Practice head(s):

Rachel Brass; Stephen Weissman

Other key lawyers:

Cynthia Richmann; Rich Parker; Daniel Swanson

Key clients





Merck & Co., Inc.

Jimmy John’s

Barnes & Noble Education, Barnes & Noble College Booksellers

Kraft and Mondelez

Smithfield Foods


Jones Day

Jones Day provides clients with support across the whole gamut of antitrust-related civil litigation and class action. The firm fields a deep bench of litigators with particular strengths in the pharmaceutical, health insurance, auto parts, and technology sectors. Practice head Craig Waldman and class action expert John Majoras are situated in the firm’s Washington DC office in addition to Julie McEvoy, who regularly represents clients against claims brought forward by federal agencies and private plaintiffs. In Cleveland, Michelle Fischer litigates issues including price discrimination, sham petitioning, tying and bundling, as well as price gouging and monopolization. Further key attorneys are healthcare litigation expert Jeffrey LeVee (Los Angeles), former FTC litigation and trial counsel Lin Kahn (San Francisco), and David Kiernan (San Francisco), whose expertise ranges from the technology and healthcare to the energy industry. Paula Render  retired at the beginning of 2021.

Practice head(s):

Craig Waldman

Other key lawyers:

John Majoras; Julie McEvoy; Michelle Fischer; Jeffrey LeVee; Lin Kahn; David Kiernan

Key clients

Adient plc

Axon Enterprise, Inc.

Bitmain Technologies Ltd.

Cardinal Health, Inc.

Cargill Meat Solutions, Inc.

Cleveland-Cliffs Inc. and AK Steel Holding Corp.

ICANN (Internet Corporation for Assigned Names and Numbers)

Indivior, Inc.

National Beef Packing Company, LLC.

Presbyterian Healthcare Services, Inc.

Sanofi-Aventis U.S. LLC


Union Pacific Railway Co.

Wells Fargo, National Association

Work highlights

  • Obtained a dismissal with prejudice for Bitmain Technologies Ltd. and related entities in a complaint alleging that the entities that control the selection and operation of major cryptocurrencies conspired with one another to restrain competition for new forms of digital currency.
  • Successfully defended SAP, one of the world’s leading producers of software for the management of business processes, against trade secret and antitrust claims in a lawsuit filed in the Northern District of California.
  • Defending Sanofi-Aventis U.S. LLC against novel antitrust and consumer protection claims alleging that the company employed a variety of tactics to artificially inflate the price of Lantus, the company’s blockbuster long-acting insulin glargine product.

Kirkland & Ellis LLP

A client describes Kirkland & Ellis LLP as the ‘best in business’ in the class action antitrust space, praising the firm for its ‘thoughtful, pragmatic, and effective’ approach. Monopolization, pricing disputes, unfair competition, intellectual property, and price discrimination are among the issues covered by the team and are also Chicago-based James Mutchnik‘s areas of focus. Daniel Laytin, also located in Chicago, represents defendants in high-stakes class action and civil litigation matters across the US. The firm has recently expanded its team with the arrivals of antitrust and competition attorney Andrea Agathoklis Murino and litigation specialist Matthew Wheatley, who both joined the Washington DC office in early 2021 from GoodwinChrista Cottrell, who also forms part of the firm’s Chicago bench, has litigated complex class actions for clients such as General Motors and Sanderson Farms, among others.

Other key lawyers:

James Mutchnik; Daniel Laytin; Andrea Agathoklis Murino; Matthew Wheatley; Christa Cottrell


‘Kirkland delivers quality class action defense – thoughtful, pragmatic, and effective. Best in the business.’

Key clients

AbbVie, and separately, AbbVie’s affiliate Forest Laboratories


Ares Management Corporation

Blue Cross & Blue Shield Association Blue Cross & Blue Shield Association Blue Cross & Blue Shield Association

Hitachi, Ltd.



Sanderson Farms, Inc.

Tenet Healthcare

The Clemens Family Corp.

Thomson Reuters Corp.


Wellmark Blue Cross and Blue Shield

AbbVie, and separately, AbbVie’s affiliate Forest Laboratories


Ares Management Corporation

Latham & Watkins LLP

Latham & Watkins LLP's ‘depth and experience distinguishes them from other competitors’ in the antitrust and competition space, according to a client. Class actions and civil litigation are handled with particular expertise in two of the firm’s US locations: Washington DC and San Francisco. Amanda Reeves chairs the department from DC, where the group is well respected for its DOJ and FTC expertise, and Jennifer Giordano engages in cases at both trial and appellate level. On the West Coast, the focus lies on high-tech litigation, where the firm houses a deep bench of specialists including Christopher Yates who regularly represents blue-chip clients and sports organization, as well as Daniel Wall whose experience spans a variety of sectors and unfair competition claims. In March 2021, Ian Conner joined the firm’s DC office, having previously served as director of the Bureau of Competition at the FTC and bringing to bear vast expertise pertaining to the pharmaceutical, technology, and healthcare sectors, among others.

Practice head(s):

Amanda Reeves

Other key lawyers:

Belinda Lee; Jennifer Giordano; Christopher Yates; Daniel Wall; Ian Conner; Al Pfeiffer


‘L&W is known for its strong antitrust team. More recently, they have developed a strong music licensing specialty team.’

‘Top Notch! Could not be more pleased.’

‘Preparation, intellect and follow through. Jenn Giordano is as good as I have worked with, and her communication skills are exceptional.’

‘High marks on bet-the-company litigation. Their relationship with us extends to the C-suite level.‘ 

The firm’s depth and experience distinguishes them from other competititors.

Key clients


United States Soccer Federation

National Women’s Soccer League


Square, Inc. (Square) and Cash App Investing, LLC (CAI)


Olam International

Oracle America


Fédération Internationale de Natation (FINA)


Radio Music License Committee


Cox Enterprises

Ocean Spray Cranberries


Sumida Corporation

CCC Intelligent Solutions

Dairy Farmers of America

Morgan, Lewis & Bockius LLP

Morgan, Lewis & Bockius LLP ‘exhibits the highest caliber of professionalism and legal excellence in its civil litigation and defense practice’. The department stands out for its ability to secure wins in key areas of antitrust litigation, including in financial services, hi-tech, pharmaceutical and labor matters such as no-poach agreements. Global practice leader Steven Reed, based in Philadelphia, demonstrates expertise at the trial and appellate levels across the whole range of antitrust matters. In Washington DC, Jon Roellke acts as global deputy practice leader with a particular focus on representing clients in the financial services sector in cases pertaining to price discrimination, exclusive dealing, tying arrangements, and other unfair competition. ‘Thoughtful and practical legal sounding board’ Brian Rocca is specialized in technology and interned-based services in the firm’s San Francisco hub, while clients turn to Philadelphia-based Brendan Fee for issues surrounding vertical restraints, distribution, and pricing issues.

Practice head(s):

Steven Reed; Jon Roellke

Other key lawyers:

Brian Rocca; Brendan Fee; Stacey Anne Mahoney


‘Morgan, Lewis & Bockius LLP exhibits the highest caliber of professionalism and legal excellence in its civil litigation and defense practice. We have worked with them for many years, and even with attorney retirements or other changes, they have groomed an outstanding successor who is knowledgeable and ready to represent your interests to the fullest. No matter what the time crunch is or sudden last minute legal hurdle or deadline, the job gets done superbly. The firm has our highest recommendation and the commendation of individual members of our association who have used Brian to meet their individual litigation needs.’

‘Brian Rocca, Managing Partner in San Francisco office is a responsive, excellent litigator, extremely gifted in bringing together a dream team of partners and associates to address your changing legal and litigation issues and needs ranging from routine matters to critical trial and appellate work. Whatever the issue area, the firm has a depth of experienced experts to advise and assist you the client. Brian provides sound legal advice and a keen public relations perspective and insight on sensitive matters that you as a client may confront in today’s business and media environment. He is a thoughtful and practical legal sounding board. He and the members of his team have my highest regard.’

Key clients

Blue Cross Blue Shield of Louisiana

BMW North America LLC

Breckenridge Pharmaceutical, Inc.

Comcast Cable Communications

Securus Technologies Inc.

Glenmark Pharmaceuticals Inc.

Google LLC

Merck & Co. Inc.

Morgan Stanley

Perrigo Company Plc

Qualcomm Incorporated

Realogy Holdings Corp.

Shell Oil Company

Sumitomo Mitsui Banking Corporation

Sun Pharmaceutical Industries Ltd.

Takeda Pharmaceuticals


Teva Pharmaceuticals

The Clearing House Payments Company, LLC

Tradeweb Markets LLC

Uber Technologies, Inc.

Vyera Pharmaceuticals

Work highlights

  • Representing Google in connection with multidistrict litigation that has been centralized in the Northern District of California related to the Android ecosystem.
  • Defending Vyera Pharmaceuticals and its Swiss parent company, Phoenixus AG, in a lawsuit filed by the FTC and the attorneys general of seven states (including New York and California) in the US District Court for the Southern District of New York, with plaintiffs claiming that Vyera and Phoenixus violated federal and state antitrust laws through various business practices allegedly intended to prevent generic competition to Daraprim, a drug used to treat toxoplasmosis.
  • Represented Qualcomm together with co-counsel from other leading firms and obtained a favorable appellate decision for Qualcomm when the Ninth Circuit reversed and vacated the class certification for consumers in this chip sale and IP-licensing antitrust lawsuit, Stromberg et al. v. Qualcomm Inc.

Paul, Weiss, Rifkind, Wharton & Garrison LLP

The antitrust practice at Paul, Weiss, Rifkind, Wharton & Garrison LLP excels in individual and class action claims alike, with cases spanning the whole range of defense matters including monopolization, price fixing, bid rigging, and exclusive dealing. Acting for clients such as Amazon, Credit Suisse, and SAP, the group’s expertise extends to a host of industries and multiple jurisdictions in and outside of the US. In Washington DC, Ken Gallo is praised for his ‘impactful blend of practical solutions, legal acumen and technical expertise’  with which he represents clients particularly at the intersection of antitrust with intellectual property. Technology and social media specialist Karen Dunn and Bill Isaacson further form part of the DC team. In New York, Aidan Synnott and Andrew Finch are recommended for their involvement in high-stakes class actions in financial services and the high-tech industry. Bet-the-company expert Rick Rule in Washington DC departed in March 2022 to found his own firm.

Other key lawyers:

Ken Gallo; Karen Dunn; Bill Isaacson; Aidan Synnott; Andrew Finch; Joseph Bial ; Bob Atkins; Craig Benson


‘Joe Bial has always been very helpful and diligent in difficult situations. He understands well about how foreign companies would react to US civil lawsuits and yet keeps cool mind to analyze the dynamics of the case.’

‘When you are faced with a large MDL, it can be daunting to try and organize the defense and try to plot a path out of it. Paul Weiss is able to take care of the day to day management of MDL, make sure all necessary tasks are completed as well as lay out a path to resolution, despite such a goal being years off. If MDL hits, you need a Paul Weiss on your side to manage.’

‘Ken Gallo is the finest lawyer I have ever had the pleasure of working with. I have yet to encounter a legal issue that Ken does not have a recommendation to help manage. It is an impactful blend of practical solutions, legal acumen and technical expertise which I have never found in another lawyer. Craig Benson has done a remarkable job in helping steer our cases while Ken is otherwise engaged. Craig helps to keep everything going seamlessly which is very hard to do.’

White & Case LLP

The antitrust and competition practice at White & Case LLP ‘leaves absolutely no stone unturned, and spares no expense to identify every last piece of useful evidence’ while routinely securing early dismissals and negotiating favourable settlements. Household name corporates turn to the firm to defend monopolization claims, price-fixing, and other unfair competition actions. Mark Gidley leads the global antitrust practice from Washington DC with trial experience in Europe and Asia in addition to the US. Also in DC are Kathryn Jordan Mims, who is well versed in bet-the-company and opt-out actions, as well as antitrust heavyweight Christopher CurranJack Pace, based in New York, is also recommended for his involvement in high-profile cases in the pharmaceutical and financial services sectors. The department appointed two new partners to its bench in October 2021: Washington DC-based Adam Acosta and Kevin Adam, who is located in Boston; both focus on litigation within the antitrust space.

Practice head(s):

Mark Gidley

Other key lawyers:

Kathryn Jordan Mims; Christopher Curran; Jack Pace; Adam Acosta; Kevin Adam;  Bryan Gant


‘Talented and knowledgeable, with strong grounding in economics and financial markets. Not to mention its incredibly deep bench in antitrust law.’

‘Mark Gidley is an energizer bunny who can do it all (and does) – endlessly creative, boundless enthusiasm, and fantastic at rallying the troops. And a genius.’

‘The White and Case team is dogged in their pursuit of information, facts, and insights that could help their clients. They leave absolutely no stone unturned, and spare no expense to identify every last piece of useful evidence. They work very hard individually, and also work together well, piecing together their complex cases and arguments as a unit.’

‘Mark Gidley has a different approach than many senior partners I have worked with. He is intensely involved in the details of every analysis, and truly enjoys economics and analytics, such that he works closely with the economics team on his projects. He iterates frequently, managing the analyses, and working towards the optimal outcome for his case and client.’

‘Strong communication, strategic thinking – counsel approaches issues from the perspective of the business.’

‘Fantastic commitment, responsiveness, and value add thinking. Kathryn Mims stands out here.’

‘Bryan Gant is a rock star. He is very responsive and thoughtful in his analysis.’

‘The team has a deep knowledge of pharma and has litigated many of the major cases in the last 10 years. It seems like most of the winning defense strategies you see used in today’s pharma antitrust matters can be traced back to arguments that the White & Case team came up with, and oftentimes won on, in some earlier litigation.’

Key clients




Apex Clearing Corporation

Samsung Bioepis

Gilead Sciences

Novasep Holding

FXI Holdings

Boston Scientific affiliate company BTG International


Forest Laboratories

Hikma Pharmaceuticals


Diamond Tools

Nestlé Purina


Xinyi Auto Glass of North America

V5 Technologies

Work highlights

  • Secured an early-stage victory in the meme stock antitrust class actions for Apex Clearing Corporation when the court dismissed the complaint for failing to plausibly plead the existence of an antitrust conspiracy between Apex and defendant brokerages and market makers.
  • Successfully eliminated all consumer claims and all “product hopping” claims, and secured a precedent-setting defense-side ruling on the evaluation of alleged reverse payment settlements in Namenda for AbbVie (and predecessor company Forest Laboratories) and Merz Pharmaceuticals.
  • Obtained a favorable settlement for Pfizer with a class of consumers who allege they overpaid for EpiPens for 5% of alleged damages, likely clearing Pfizer from having to face a jury trial.

Arnold & Porter

With a trial-focused approach Arnold & Porter‘s antitrust and competition practice excels at defending clients before federal and national courts, while at the same time demonstrating a strong track record of being successful in the motion-to-dismiss and summary judgement stages of class actions and civil litigation. The department is led by a Washington DC-based trio consisting of head of global antitrust practice Debbie Feinstein, head of US antitrust practice Jonathan Gleklen , and litigation specialist James Cooper. Also situated in the DC hub are life sciences expert Laura Shores and Anne Davis, who is experienced in representing clients on both sides of the aisle in class actions and opt-out litigation. Scott Lent handles high-profile antitrust matters in sectors such as commodities and pharmaceuticals from the firm’s New York location.

Practice head(s):

Debbie Feinstein; Jonathan Gleklen; James Cooper

Other key lawyers:

Laura Shores; Anne Davis; Scott Lent; Sonia Kuester Pfaffenroth

Key clients

AstraZeneca Pharmaceuticals LP

Bausch Health Companies


Bloomberg L.P.

Bristol-Myers Squibb

Elanco Animal Health

GN Audio


Koito Manufacturing

Modivcare (formerly known as Providence Service Corporation)

Oakland Raiders

Sandoz Inc. and Fougera Pharmaceuticals Inc.

Taiyo Yuden


Yamashita Rubber Co.

Work highlights

  • Representing Oakland Raiders in securing dismissal of a federal antitrust lawsuit and a state court action filed by the City of Oakland against the NFL and its 32 teams, alleging that the league ignored its own relocation policies and violated Section 1 of the Sherman Act by approving the Raiders’ move to Las Vegas.
  • Representing HarperCollins in the defense against several putative class action antitrust litigations brought against and the five largest US publishers relating to the sale of electronic and print books.
  • Representing Sandoz Inc. and its subsidiary Fougera Pharmaceuticals Inc. in multi-district litigation (MDL), comprising actions brought on behalf of 54 States, private plaintiffs, and several purchasers, alleging that the defendant pharmaceutical manufacturers conspired to fix or raise the prices of, and allocated markets/customers for, hundreds of products.

Axinn Veltrop & Harkrider

Axinn Veltrop & Harkrider sports an antitrust practice that defends blue-chip clients across a number of industries and in civil litigation and class actions, and has recently handled high-profile cases in the foods, technology, and pharmaceutical spaces. New York-based John Harkrider and Michael Keeley, who is based in Washington DC and focuses on the intersection of antitrust with intellectual property, jointly head the department. Also in the firm’s DC hub are Rachel Adcox, John Briggs, and Tiffany Rider, all of whom have extensive experience in the antitrust field including regulatory investigations and follow-on class actions. At the beginning of 2021, there were several partner additions to the practice group: Denise Plunkett joined the New York office from Ballard Spahr LLP, while Daniel Oakes in DC and Craig Reiser in New York were both promoted to partner.

Practice head(s):

John Harkrider; Michael Keeley

Other key lawyers:

Rachel Adcox; John Briggs; Tiffany Rider; Denise Plunkett; Daniel Oakes; Craig Reiser

Key clients


Tyson Foods

Stanley Black & Decker


Momenta Pharmaceuticals

McKesson Corporation

Alliance for Safe Online Pharmacies

Thermo Fisher Scientific

Thales Group (France)


Shintech Inc. & Shin-Etsu Chemical

Tufts Health Plan

Sunrun Inc.

Cummins Inc.

Work highlights

  • Representing Tyson Foods as lead counsel in multiple major treble-damage class action litigations and regulatory investigations alleging industry-wide conspiracies to raise the prices of broiler chickens, pork, turkey, and beef, as well as a conspiracy to depress broiler grower pay.
  • Representing Alvogen in a patent infringement and antitrust litigation regarding Indivior’s opioid dependency treatment drug Suboxone Film, and the Generic Drugs MDL.
  • Providing strategic direction and support for Google’s defense of a number of related class actions and other private lawsuits regarding Google’s advertising technology business.

Baker Botts L.L.P.

The antitrust and competition law practice at Baker Botts L.L.P. encompasses the full spectrum of antitrust litigation on both sides of the aisle before federal, state and appellate courts. Nationwide private litigation on behalf of corporate defendants and opt-out-litigation are part of the firm’s portfolio, including cases relating to monopolization, price-fixing conspiracies, as well as vertical price and non-price restraints. John Taladay, who is experienced in working closely with the FTC and DOJ, and antitrust, privacy and data security and consumer protection expert Maureen Ohlhausen lead the department. William Lavery is well versed in matters including high-profile bet-the-company cases from industries such as pharmaceutical, healthcare, and technology, which are also covered by senior associate Chris WilsonStephen Weissman and Michael Perry left the firm in March 2021, while Taylor Owings joined from the DOJ’s antitrust division in June of the same year. All mentioned attorneys are based in Washington DC.

Practice head(s):

John Taladay; Maureen Ohlhausen

Other key lawyers:

William Lavery; Taylor Owings; Erik Koons; Chris Wilson


‘Terrific communication and follow up. Strong grasp of the law and strategy. Exceptional at budgeting and sticking to it.’

‘Erik Koons — terrific.’

Key clients




QVC, Inc.

Caterpillar Inc.

CenterPoint Energy


UnitedHealth Group Incorporated




Georgia-Pacific LLC (GP Wood Products LLC)

Waste Management, Inc.

American Industrial Partners, LLC (AIP, LLC)


Conversant Wireless Licensing SARL

Eagle Materials

HollyFrontier Corp

Irico Display Devices Co., Ltd.

JSW Steel (USA) Inc. / JSW Steel USA Ohio, Inc.

Koninklijke Philips N.V., Philips North America LLC, Philips Taiwan, Limited and Philips do Brasil Ltda.

Liberty Media Corporation

Magellan Midstream Partners LP

Masco Corporation

McDermott International, Inc.

National Association of Boards of Pharmacy

Olin Corporation

Royal Dutch Shell


Sandoz, Inc.

SSW Partner LP

Sun Pharmaceuticals / Taro Pharmaceuticals

Westlake Chemical Corporation

Zydus Pharmaceutical, Inc.

Work highlights

  • Representing QVC, Inc. in litigation filed by actress, entrepreneur, and former QVC vendor, Suzanne Somers, and her affiliated company, SLC Sweet, Inc., alleging violations of Section 2 of the Sherman Act and commercial law claims.
  • Representing Irico, a Chinese manufacturer and seller of CRTs, in a significant price fixing action in the U.S.
  • Represented  Koninklijke Philips N.V., Philips North America LLC, Philips Taiwan, Limited and Philips do Brasil Ltda. in a case in which a class of indirect purchasers sued the Philips entities in the Northern District of California in 2007, accusing Philips and other defendants of conspiring with other manufacturers to fix the price of Cathode Ray Tubes commonly used in televisions until the late-2000s.

Mayer Brown

The antitrust and competition practice at Mayer Brown continues to be involved in high-profile cases on the defense side in industries such as agriculture and food, automotive, and healthcare. The firm recently added Gail Levine, formerly deputy director of the Bureau of Competition at the FTC, to its partner roster in Washington DC, where she focuses on the high-tech, healthcare as well as pharmaceuticals and life sciences sectors. She leads the department together with Chicago-based Britt Miller and DC-based William Stallings. Also in DC, Carmine Zarlenga excels at the intersection of antitrust and intellectual property, while Oral Pottinger is well versed in class action discovery and e-discovery.

Practice head(s):

Britt Miller; William Stallings; Gail Levine

Other key lawyers:

Carmine Zarlenga; Oral Pottinger; Andrew Marovitz

Key clients

Cargill Meat Solutions Corporation

Foster Poultry Farms and Foster Farms, LLC

Indiana Packers Corporation/Mitsubishi Corporation

Cermaq Group AS


Lear Corporation

Southwest Airlines

Dartmouth-Hitchcock Health

Delta Dental

Nestlé, SA

CNH Industrial

CDK Global

The Big Ten Conference

BASF Corporation and BASF SE

Delta Dental Plans Association

Work highlights

  • Representing clients in each of the broilers (Foster Farms), turkey (Foster Farms), pork (Indiana Packers), beef (Cargill) and salmon (Cermaq) antitrust cases, which are substantial pending antitrust class actions in the agricultural and food industry.
  • Representing Delta Dental Plans Association in a multidistrict litigation in which plaintiffs claim that defendants violated Section 1 of the Sherman Act by allegedly agreeing to “allocate” the dental insurance market into geographic areas and purportedly imposing below-market reimbursement rates on dental providers.
  • Representing HSBC Bank plc & HSBC Bank USA, N.A. in a putative class action alleging that financial institutions restrained competition in the trading of supranational, sovereign and agency bonds, as well as in another action alleging that financial institutions boycotted entry of an exchange trading platform in the credit default swaps marketplace.

Quinn Emanuel Urquhart & Sullivan, LLP

Quinn Emanuel Urquhart & Sullivan, LLP sports a blue-chip practice on both sides of its antitrust and litigation department. On the defense side, the firm brings to bear particular expertise at the intersection of antitrust and IP, as well as financial services, the food industry, and technology. Stephen Neuwirth chairs the practice from New York, having secured a number of early dismissals in high-stakes class actions in recent years. In the firm’s Los Angeles hub, Kevin Teruya excels in the securities and commodities space, while Adam Wolfson‘s expertise includes cartel class actions and other antitrust theories. Further key contacts are financial industry experts Steig Olsen and Daniel Brockett in addition to class certification specialist Sami Rashid, all of whom are located in New York. In February 2021, Debra Bernstein joined the firm’s Atlanta office from a previous position at Alston & Bird LLP and is regularly involved in complex price-fixing matters, opt-out cases, and bet-the-company litigation in the antitrust space.

Practice head(s):

Stephen Neuwirth

Other key lawyers:

Kevin Teruya; Adam Wolfson; Steig Olsen; Daniel Brockett; Sami Rashid; Debra Bernstein

Key clients

Daimler AG, Mercedes-Benz USA LLC


SoundCloud Inc.

National Association of REALTORS

Entergy Corporation; Entergy Mississippi, LLC; Entergy Services, Inc.; Entergy Power, Inc.

International Business Machines Corp. (“IBM)”; Red Hat, Inc.

Vitol, Inc.

SalMar ASA and Scottish Sea Farms Ltd.



Rockwell Automation, Inc.

Dell Marketing, L.P.

Work highlights

  • Represented Daimler AG and won complete dismissal of all claims in the German Auto Parts Antitrust Litigation in the Northern District of California, and affirmance of dismissal on appeal.
  • Obtained a summary judgment from the state court for Entergy Corporation; Entergy Mississippi, LLC; Entergy Services, Inc. and Entergy Power, Inc. holding that the claims brought by the Mississippi Attorney General were pre-empted by federal energy laws and dismissing them in their entirety.
  • Represented the National Association of REALTORS and successfully opposed an application for a temporary restraining order and preliminary injunction and won motions to dismiss both complaints in the Clear Cooperation Policy litigations.

Shearman & Sterling LLP

The antitrust group at Shearman & Sterling LLP represents clients in class actions and civil litigation pertaining to market allocation claims, monopolization, price-fixing, and unfair competition. The firm is particularly strong in the financial services sector but also sports extensive antitrust litigation expertise in other industries including technology, media and entertainment, healthcare, and agribusiness. David Higbee (Washington DC) leads the department while Adam Hakki (New York) and Patrick Robbins (San Francisco) are also key contacts of the firm’s antitrust bench. In March 2021, technology sector expert Ryan Shores (Washington DC) rejoined the group after a stint at the DOJ. Clients turn to Richard Schwed (New York) in questions of commodity exchange class action and securities litigation as well as finance-related antitrust matters.

Practice head(s):

David Higbee

Other key lawyers:

Adam Hakki; Patrick Robbins; Richard Schwed; Ryan Shores

Key clients

1-800 Contacts

Bank of America

BNP Paribas


Intercontinental Exchange

Morgan Stanley





WilmerHale is regularly involved in antitrust class actions pertaining to monopolization, abuse of dominant position, and price-fixing, among others. Thomas Mueller is the key contact, leading the practice and having practiced antitrust litigation in both Europe and the US. Perry Lange has experience representing clients in a variety of industries including technology, telecommunications, entertainment, financial services, and pharma, while Steven Cherry handles opt-out-cases and follow-on civil litigation in domestic and international matters. In Boston, Mark Ford specializes in defending clients at the intersection of antitrust and intellectual property law. Monopolization specialist Leon Greenfield is also recommended, having represented companies in numerous high-profile appellate cases. All attorneys are based in Washington DC unless stated otherwise. Heather Nyong’o departed the firm in November 2021.

Practice head(s):

Thomas Mueller

Other key lawyers:

Perry Lange; Steven Cherry; Mark Ford; Leon Greenfield

Key clients

ELNA Co., Ltd

Salt River Project

Facebook, Inc.

Compañía SudAmericana de Vapores S.A (CSAV)

Banco Santander S.A

T-Mobile US, Inc.

AbbVie, Inc.

Novelis Inc.

Reckitt Benckiser Group plc

Heritage Guitars, Inc.

Cephalon, Inc

ACT – The App Association


Work highlights

  • Represented ELNA Co., Ltd. and obtained a favourable settlement in a class action brought by direct purchasers alleging a decade-long cartel between manufacturers of tantalum, electrolytic and film capacitors.
  • Representing Salt River Project in a class action alleging that the District’s electricity rate for rooftop-solar customers violated Section 2 of the Sherman Act and other state and federal law claims.
  • Representing Facebook, Inc. in a lawsuit brought to fanfare by a group of app developers on behalf of a purported developer class, challenging Facebook’s acquisitions of Instagram and WhatsApp and its revocation of access to certain Facebook user data as violative of various antitrust laws.

Winston & Strawn LLP

Winston & Strawn LLP is known for its ‘deep knowledge, experience, and expertise in US antitrust matters, both from a litigation standpoint and from a counselling perspective’. In recent times, the firm has been particularly active in the financial services sector, although its reach spans a variety of industries including technology, food, pharmaceuticals, as well as sports and entertainment. Jeffrey Kessler, who brings to bear expertise at the intersection of antitrust with sports law and intellectual property matters, and Eva Cole , whose clients include corporations and individuals, jointly lead the department from New York. ‘Brilliant, hard-working, standout trial lawyer’ James Herbison, based in Chicago, handles class actions and civil litigation relating to price-fixing, bid-rigging, and other unfair competition issues. In New York, Heather Lamberg  represents clients on both sides of the aisle in antitrust litigation, while high-tech expert Susannah Torpey and chair of college sports sub-practice David Greenspan are further names to note in the firm’s New York office.

Practice head(s):

Jeffrey Kessler; Eva Cole

Other key lawyers:

James Herbison; Heather Lamberg; Susannah Torpey; David Greenspan; Michael Mayer


‘In depth subject matter expertise. Strong government connections. Ability to quickly and succinctly deliver practical advice.’

‘I strongly recommend Heather Lamberg in the DC office of this firm. She is very smart to quickly grasp the essence of the matter.’

‘Deep knowledge, experience, and expertise in US antitrust matters, both from a litigation standpoint and from a counseling perspective. The antitrust team at Winston has been incredibly effective in the courtroom during litigation and in providing sound legal advice for navigating complex antitrust issues affecting our business.’

‘They are always available for virtual meetings, turnaround projects/assignments timely, and produce high quality work-product. I have enjoyed working with them and look forward to continued engagement on future matters.’

‘Relentless in their efforts, and peerless industry knowledge and experience; superior trial advocacy and experience.’

‘Jim Herbison is a brilliant, hard-working, standout trial lawyer.’

‘Jeffrey Kessler is the most knowledgeable and effective lawyer in America when it comes to antitrust law in sports. He is also extremely responsive and communicative. He goes above and beyond when he takes a case.’

‘Winston & Strawn was a wonderful partner and guide during a challenging process. The team worked well together, with each individual contributing distinct and valuable expertise. Everyone was cooperative and respectful of the work our team members were balancing, in addition to tasks related to the matter.’

Key clients

Baxter International

Camber Pharmaceuticals

Classes of current and former Div. 1 football and basketball players

Norman W. Fries, dba Claxton Poultry

Delta Dental Insurance Company and affiliates

Discover Financial Services

Englewood Healthcare Foundation

Equifax, Inc.

Harmoni Spice Co. Ltd.

JTEKT Corporation

KSA Lighting & Controls, Inc.

Metaswitch Networks

Monsanto Company

Motorola Solutions

National Football League Players Association (NFLPA)

National Pork Producers Council

North American Soccer League (NASL)

NorthShore University HealthSystem

NTN Corporation

Nuveen, LLC

Panasonic Corporation


Relevent Sports Group


Kent Thiry (former CEO of DaVita)

TreeHouse Foods

U.S. Women’s Nation Team (USWNT) [soccer]

Well Fargo

WestRock Corporation

William Morris Endeavor

Zillow Group, Inc.

Work highlights

  • Representing Motorola Solutions in a significant antitrust case filed against it by competitor Hytera as well as a parallel class action filed shortly thereafter brought by plaintiffs alleging that the client orchestrated a scheme to monopolize the U.S. market for land mobile radios.

Allen & Overy LLP

The ‘very efficient and pragmatic’ attorneys at Allen & Overy LLP‘s antitrust practice excel at defending clients in the financial services sector as well as in the technology and pharmaceutical space. The firm, which is well regarded in the market for its global reach, has also recently been involved in cases pertaining to the food and automotive industry. In August 2021, the firm added technology and pharmaceutical sector specialist Noah Brumfield, previously at White & Case LLP, to its DC bench. He is praised for being ‘an outstanding antitrust lawyer who deeply understands clients’ business’ and joins New York-based Elaine Johnston as co-head. John Roberti left the firm in March 2022.

Practice head(s):

Elaine Johnston; Noah Brumfield

Other key lawyers:

Todd Fishman


‘Very efficient and pragmatic advisors’

‘Full service firm capped with excellent lawyers in all legal areas.’

‘Noah Brumfield is an outstanding antitrust lawyer who deeply understand clients’ business and can provide clients with practical legal advice.’

Key clients

Merz Pharmaceuticals

Samsung SDI

Barclays Bank Plc

BNP Paribas

Robert Bosch


Tri-Union Seafoods

Wonderland Company Inc.

Hytera Communications

Davis Polk & Wardwell LLP

Davis Polk & Wardwell LLP demonstrates particular strengths in the financial services industry, though the firm is also well respected in other sectors, including big tech. Practice head Arthur Burke routinely advises international tech corporations and financial institutions in antitrust litigation matters and is active in both the firm’s New York and Northern California offices. Price-fixing, monopolization and follow-on class actions fall into the area of expertise of Washington DC-based Jarrett Arp. Further key names to note in the firm’s New York hub are civil litigator Paul Mishkin and Sheila Adams, who was promoted to partner in July 2021 and whose clients stem from a variety of sectors such as media and entertainment, pharmaceutical, and technology.

Practice head(s):

Arthur Burke

Other key lawyers:

Jarrett Arp; Paul Mishkin; Sheila Adams

Dechert LLP

Dechert LLP is praised by a client for having a ‘very strong antitrust team, with tremendous depth on the bench and a keen insight on how to deal with the most vexing issues’. The firm handles matters across the whole range of antitrust litigation, including price-fixing and supply-reduction conspiracies as well as monopolization claims and other unfair competition. Specialising in antitrust defense litigation, Philadelphia-based Steven Bizar leads the practice together with Mike Cowie in Washington DC, who is particularly experienced in representing clients from the health care and life sciences industries. Also specialized in life sciences is George G Gordon in Philadelphia, while Shari Ross Lahlou has secured significant wins in tying, exclusive dealing, and cartel matters from the firm’s DC hub. At the beginning of 2022, Philadelphia-based Julia Chapman was elected to partner; she focuses on antitrust and complex commercial litigation in industries such as life sciences, chemicals, and agriculture.

Practice head(s):

Steven Bizar; Mike Cowie

Other key lawyers:

George G Gordon; Julia Chapman; Shari Ross Lahlou


‘Dechert has a very strong antitrust team, with tremendous depth on the bench and a keen insight on how to deal with the most vexing issues clients face. They are particularly strong on the litigation side of antitrust class actions, demonstrating a depth of experience.’

‘Steve Bizar is one of the cornerstones of the practice- a brilliant litigator who gets his hands into the details and knows exactly how to proceed.’

‘George Gordon is a delight to work with- a steady hand with a measured approach and very wise counsel.’

‘Julia Chapman is an up and coming partner who demonstrates knowledge far beyond her years. She is a superstar.’

Key clients

Ascensus, LLC; Ascensus Broker Dealer Services, LLC; and Ascensus College Savings Recordkeeping Services, LLC

Citron Pharma, LLC

Clearon Corporation

Endo Pharmaceuticals, Inc.

Fresenius Medical Care

Humana Inc.

Interactive Brokers

Lannett Company, Inc.

Par Pharmaceuticals

Vortex Commercial Flooring

Marriott International, Inc.

Aetna Inc.

Ascensus, LLC; Ascensus Broker Dealer Services, LLC; and Ascensus College Savings Recordkeeping Services, LLC

Citron Pharma, LLC

Clearon Corporation

DTE Energy

Eli Lilly & Company

Endo Pharmaceuticals, Inc.

Fresenius Medical Care

Humana Inc.

Interactive Brokers

Lannett Company, Inc.

Occidental Petroleum Corporation/ Occidental Chemical Corporation

Par Pharmaceuticals

Vortex Commercial Flooring

Work highlights

  • Successfully defended Marriott International against complaints alleging conspiracies related to keyword advertising bidding; after five days of an antitrust jury trial secured a public apology and highly favorable settlement.
  • Defending Occidental Petroleum in a direct and indirect purchaser class action cases alleging a price-fixing and supply-reduction conspiracy involving the major domestic producers of caustic soda.
  • Representing Fresenius Medical Care in its defense of claims that they monopolized the market for dialysis services.

O'Melveny & Myers LLP

O’Melveny & Myers LLP focuses its antitrust practice on litigating complex matters including class actions, cartels, and unfair competition. In Washington DC, Ben Bradshaw leads the department together with Ian Simmons, whose expertise spans cartels and cases at the intersection of antitrust with intellectual property. Another name to note in DC is Katrina Robson with experience in the technology, transport, and telecom sectors, among others. New York-based antitrust litigation specialist Andrew Frackman and Stephen McIntyre, who was promoted to partner in January 2021, represent clients in antitrust matters from the firm’s New York and Los Angeles hubs, respectively. In February 2021, Julia Schiller returned to the DC group after having spent three years as counsel to the Assistant Attorney General of the DOJ’s Antitrust Division.

Practice head(s):

Ian Simmons; Ben Bradshaw

Other key lawyers:

Katrina Robson; Andrew Frackman; Stephen McIntyre; Julia Schiller


Andy Frackman has significant expertise and experience in the antitrust space. He is a great advocate who incorporates practicality into legal advice.

Key clients


Capital One Financial

C.R. Bard, Inc.

Endo Pharmaceuticals

Exxon Mobile

Ford Motor Corp.

Global Music Rights



Par Pharmaceuticals

Penguin Random House

Realogy Corp.

Royal Bank of Canada

Samsung Bioepis

Samsung Electronics

US Airways, Inc.

Wells Fargo

Work highlights

  • Secured a victory of first impression for in the Southern District of Florida, where plaintiff had alleged that defendants conspired to “hijack” a cryptocurrency fork that allegedly caused a $4 billion capitalization meltdown and significantly diminished the company’s Bitcoin holdings value.
  • Represented DIRECTV in class action claims against DIRECTV, all 32 NFL teams, and the league, alleging that a distribution deal between DIRECTV and the NFL violated the Sherman Act.
  • Defending Google in four multi-party antitrust cases, against opponents ranging from game and app developers to consumers and state attorneys general – all of which have been consolidated into multidistrict litigation in the Northern District of California.

Orrick, Herrington & Sutcliffe LLP

Technology companies facing complex antitrust litigation issues routinely turn to Orrick, Herrington & Sutcliffe LLP for their defense expertise. The firm is also well regarded for its advice to other industries such as insurance and automotive. Practice head Jay Jurata specializes in the intersection of antitrust with intellectual property on both a domestic and global level and acts as a longstanding advisor for blue-chip technology corporations. Amy Ray focuses on vertical pricing and distribution issues, while technology and financial services specialist James Tierney and San Francisco-based distribution law expert Howard Ullman are other key contacts. In early 2022, the group expanded with the hires of Eileen Cole from White & Case LLP and Craig Falls, formerly at Dechert LLP, who both add significant antitrust experience in the life sciences sector.

Practice head(s):

Jay Jurata

Other key lawyers:

James Tierney; Amy Ray; Howard Ullman; Eileen Cole; Craig Falls

Key clients

Microsoft Corporation

Delta Dental Plan of California

Continental Corporation

Nanya Technology Corporation




Fujifilm Corporation

Continental Corporation

ANI Pharmaceuticals Inc.

ACV Auctions, Inc.

Work highlights

  • Representing Zillow in defense of a Section 1 antitrust case (REX-Real Estate Exchange, Inc. v. Zillow, Inc., et al.) filed in the W.D. Washington alleging that Zillow and the National Association of Realtors (NAR) are engaging in a horizontal conspiracy to foreclose a discount real estate brokerage from disrupting the typical 6% seller-buyer commission sales model.
  • Defending ACV Auctions in a Section 1 price fixing and RICO class action filed in the W.D.N.Y., just days before its Initial Public Offering. The complaint alleges that ACV, which operates a wholesale online auction platform for used cars, conspired with sellers on that platform to submit shill bids in order to drive up prices for the vehicles being auctioned.
  • Defending Delta Dental Plan of California and other Delta entities (representing over a dozen of the states in which Delta Dental does business nationally, including New York, Pennsylvania and Texas) in the In re Delta Dental Antitrust Litigation pending before the Northern District of Illinois.

Paul Hastings LLP

The antitrust and competition practice at Paul Hastings LLP consists of a team ‘with breadth of experiences’. At the beginning of 2021, Gary Zanfagna, who previously chaired the American Bar Association Antitrust Law Section, joined as new practice head in Washington DC with extensive experience in matters pertaining to global antitrust issues. In New York, Barry Sher and Anthony Antonelli are regularly sought after by clients in the financial services sector, while DC-based Michael Spafford handles cases relating to allegations of price-fixing, collusion, and violations of federal securities, among others. In August 2021, the firm also welcomed Michael Murray from the DOJ to its DC office.

Practice head(s):

Gary Zanfagna

Other key lawyers:

Barry Sher; Anthony Antonelli; Michael Spafford; Michael Murray


‘A solid team with a breadth of experiences brings good perspective to matters.’

‘James “Bo” Pearl is accessible and provides timely, practical advice. Michael Murray brings his government experience to bear on matters with good insights.’

Key clients


RBC Capital Markets, LLC

Nu Dotco, LLC

Align Technology

Etsy, Inc.

Mitsubishi Tanabe Pharma Corporation

Robert Bosch

Sumitomo Mitsui Banking Corporation


Work highlights

  • Representing Barclays Bank PLC and certain of its affiliates (“Barclays”) in In Re SSA Bonds Antitrust Litigation, a putative class action lawsuit filed in the U.S. District Court for the Southern District of New York, claiming Barclays, and more than 30 other financial institutions, are  involved in a global, decade-long conspiracy to fix prices and restrain competition in the $9 trillion SSA bond market.
  • Representing Barclays Capital Inc. in Litovich v. Bank of America, et. al. (Case No.: 20-cv-3154), a putative class action lawsuit filed in April 2020 in the U.S. District Court for the Southern District of New York, alleging a conspiracy to fix prices and restrain competition on odd-lots of corporate bonds (i.e., bond trades less than $1M in par value) sold in the secondary market.
  • Representing RBC in LAMP v. Bank of America, et. al. (Case No. 20-cv-1095) filed on April 1, 2020 in the Eastern District of Louisiana, with plaintiffs accusing RBC and two dozen other financial institutions of being involved in a multi-year conspiracy to fix prices and restrain competition on sales of bonds issued by government sponsored entities (GSEs).

Simpson Thacher & Bartlett LLP

With ‘a good mix of highly skilled partners, mid-level partners and associates’, Simpson Thacher & Bartlett LLP sports an antitrust practice that defends clients across every major industry with a deep understanding of both the DOJ and FTC. Having opened an office in Brussels in summer 2021, the firm has strengthened its international reach through close collaboration of the Brussels team with the US offices. Sara Razi and John Terzaken in Washington DC, as well as New York-based Peter Guryan head the antitrust and trade regulation practice. Also in New York, Lynn Neuner was recently appointed global co-chair of the firm’s litigation department alongside Jonathan Youngwood, whose expertise spans securities litigation and corporate control in addition to antitrust. DC-based Abram Ellis excels at antitrust matters related to financial instruments, employment issues, and the healthcare industry.

Practice head(s):

Sara Razi; John Terzaken; Peter Guryan; Lynn Neuner; Jonathan Youngwood

Other key lawyers:

Abram Ellis


‘Abram Ellis is a phenomenal advisor – both on day to day advisory matters, but also on complex litigation. He helps us do our business in a more efficient and less risky way. He is a star.’

‘Simpson Thacher is a great value and great resource. Their teams are well staffed with a good mix of highly skilled partners, mid-level partners and associates.’

‘Our company works primarily with John Terzaken. John stands out for his creative thinking and strategic problem-solving skills, which is why he has been trusted to handle some of our most complex matters. By combining his technical knowledge with his DOJ experience, John provides practical guidance for business realities in a way that promotes compliance and leads to business solutions.’

Key clients

Apiture, Inc.

Booking Holdings Inc.

Change Healthcare

Covestro LLC

Cross Country Healthcare

Deutsche Bank

HCA Healthcare, Inc.

McKesson Corporation

Micron Technology, Inc.

Tyson Foods

Work highlights

  • Represented and obtained a dismissal with prejudice for Deutsche Bank in a class action alleging banks alleging banks conspired to fix prices in the Mexican government bond market.
  • Representing HCA Healthcare, Inc. in class action alleging HCA engaged in anticompetitive tactics.
  • Representing Apiture Inc. in class action alleging a no-hire agreement.

Weil, Gotshal & Manges LLP

With a strong track record in securing pre-trial victories for defendants, including motions to dismiss and defeating class certification, Weil, Gotshal & Manges LLP covers a wide range of industries and claims in its antitrust and competition practice. Clients praise the practice group for its ability to ‘truly listen’ and create ‘a solid relation of trust and efficiency.’  Steven Newborn leads the group from Washington DC, where Carrie Mahan is regularly involved in high-stakes class actions and civil litigation, including in the agribusiness, food, and hotel sectors. In New York, Eric Hochstadt is active on the defense side in matters pertaining to monopolization, no-poaching, and price-fixing, while Adam Hemlock is another key contact on the East Coast.

Practice head(s):

Steven Newborn

Other key lawyers:

Carrie Mahan; Eric Hochstadt; Adam Hemlock


‘Firms always require briefing, which can be time- and energy-consuming. With the team at Weil, I had the impression they really get who we are and what we do, what matters to us, our appetite for risk/no risk very quickly. The team truly listens to and hears their client. This creates a solid relation of trust and efficiency as everything is running more smoothly.’

Key clients

BASF Corporation


Bio-Rad Laboratories



H&R Block

Pilgrim’s Pride Corporation

Regeneron Pharmaceuticals

Saks Fifth Avenue


Simon & Schuster

Torrent Pharma


Work highlights

  • Successfully defended Hilton, resolving a nationwide antitrust consumer class action and a parallel litigation filed against Hilton and other major hotel chains where plaintiffs alleged that defendant hotel companies conspired to eliminate competition for branded keyword search advertising against each other.
  • Representing Regeneron Pharmaceuticals in a competitor case for wrongful patent enforcement and anticompetitive adverse to Novartis and Vetter for restraining trade and attempting to monopolize the market for anti-VEGF prefilled syringes in the U.S.
  • Representing BASF in an industry-wide class action alleging a group boycott of electronic platforms in the crop inputs industry.

Williams & Connolly LLP

Representing clients exclusively out of its Washington DC office, Williams & Connolly LLP demonstrates particular strengths in antitrust litigation within the pharmaceutical and technology space and sports longstanding relationships with a number of blue-chip corporates. John Schmidtlein, who is specialized in civil and criminal antitrust litigation as well as government investigations, and Jonathan Pitt, whose practice includes representing clients in matters of monopolization, no-poaching, and price-fixing, jointly lead the group. At the intersection between antitrust, intellectual property and the pharmaceutical industry lies the expertise of ‘highly talented litigator’ Benjamin Greenblum. Other key contacts are bet-the-company litigation expert Colette Connor and antitrust and securities litigation specialist Carol Pruski.

Practice head(s):

John Schmidtlein; Jonathan Pitt

Other key lawyers:

Benjamin Greenblum; Colette Connor; Carol Pruski


‘The Williams & Connolly team are excellent advocates, both orally and in writing. Their written work product is fantastic. They are also very knowledgeable about the pharmaceutical industry.’

‘Ben Greenblum is super knowledgeable regarding antitrust/competition law as it pertains to the pharmaceutical industry. He always gives very sound/practical legal advice.’

‘Elite antitrust litigators in the pharmaceutical and technology space. Smart, aggressive, and strategic.’

‘Ben Greenblum is a highly talented litigator with a deep knowledge of the pharmaceutical antitrust laws.’

Key clients

Google, Inc.

United Therapeutics Corporation

Jazz Pharmaceuticals

Par Pharmaceuticals

Celgene/Bristol Myers-Squibb

Bank of America

Endo Pharmaceuticals


CVS Pharmacy, Inc. and Caremark PCS Health, LLC

Work highlights

  • Serving as lead counsel for Google in the antitrust enforcement actions brought by the U.S. Department of Justice and various State Attorneys General accusing the company of maintaining an illegal monopoly over internet search and search advertising.
  • Representing Amazon in class action litigation brought against Amazon and the major book publishers alleging various antitrust claims regarding the distribution and sale of eBooks.
  • Representing United Therapeutics Corp. in an antitrust, unfair competition, tortious interference, and contract action involving its drug, Remodulin, which treats a rare condition known as pulmonary arterial hypertension.

Cahill Gordon & Reindel LLP

Cahill Gordon & Reindel LLP‘s antitrust department excels particularly in the financial services space, where it counts a number of leading banks and financial institutions among its clients. The firm is also active in the commodities, transports, and e-commerce sectors. Elai Katz, a ‘brilliant jurist with very strong strategic orientation’, leads the team which is ‘always on top of the matter and gives clients full confidence’, and recently gained securities, antitrust and commercial lawsuits specialist Edward Moss, formerly at O’Melveny & Myers LLP. Financial sector experts David Januszewski, Joel Kurtzberg, and Herbert Washer are also recommended for their experience in antitrust class actions and civil litigation. All mentioned attorneys are based in New York.

Practice head(s):

Elai Katz

Other key lawyers:

Herbert Washer; David Januszewski; Joel Kurtzberg; Edward Moss


‘Elai Katz is a great lawyer. Knowledgable, smart, thinks outside the box. Simply the best antitrust lawyer out there (or at the very least – the best “how have you not heard of him?” antitrust lawyer out there.’

‘The Cahill litigation team is always on top of the matter and gives me full confidence when working with them.’

‘The team is lean and mean. Very active partner engagement makes the team efficient and effective. Focus on the key items, efficient in execution.’

‘Elai Katz, combines supreme experience and insight with pleasant personality. Old-style litigator in the positive sense; really interested in the law and precedents and able to see around the curve on that basis.’

‘The team is highly knowledgeable and innovative in all aspects of the litigation process – from procedure through arguments on the merits and ending in strategy. We have been working with many firms on cross border class actions and we can say with much confidence that Cahill’s overall capabilities are exquisite.’

‘Elai Katz – Elai has a combination of skills that are very hard to find – he is a brilliant jurist with very strong strategic orientation which enables the client to obtain the most cost effective advice one can find.’

Key clients

Credit Suisse

American Express


Deutsche Bank

JP Morgan Securities

S&P Global


ICON plc

Arch Capital Group

Work highlights

  • Representing Credit Suisse in a sprawling multi-district litigation where plaintiffs filed over 70 complaints alleging that banks colluded and manipulated USD LIBOR in violation of antitrust laws, RICO, and state laws resulting in billions of dollars in damages.
  • Defending Credit Suisse in class action filed in federal court in New York alleging antitrust law violations involving trading in the multi-trillion dollar market for U.S. dollar-denominated supranational, sovereign, and agency (“SSA”) bonds.
  • Continuing to represent Credit Suisse in a major foreign exchange antitrust case alleging conspiracies to manipulate FX rates and widen spreads.

DLA Piper LLP (US)

DLA Piper LLP (US) is praised for the ‘incredible depth of its worldwide practice’ and ‘the ability to pool resources from a wide range of attorneys’. Lisa Tenorio-Kutzkey leads the practice from San Francisco with strong capabilities in bet-the-company litigation and multi-jurisdictional cases. David Bamberger, described as a ‘dogged advocate, a brilliant tactician, and a very thoughtful lawyer’, is located in Washington DC and focuses on a wide range of litigation matters relating to antitrust and trade regulation, including class actions. Other names to note in the firms Chicago office are business and antitrust litigators John Hamill and Robby Robertson. Former co-chair of the group Lesli Esposito left the firm in February 2021.

Practice head(s):

Lisa Tenorio-Kutzkey

Other key lawyers:

David Bamberger; John Hamill; Robby Robertson; John Gibson; Matt Jacobs


‘DLA Piper has the incredible depth of its worldwide practice, and the ability to pool resources from a wide range of attorneys.’

‘David Bamberger is one of the finest antitrust litigators in the country. He is a dogged advocate, a brilliant tactician, and a very thoughtful lawyer.’

‘David Bamberger has broad knowledge of the field of antitrust that he can easily convey to clients.’

Key clients

Verra Mobility Corporation

AMN Healthcare (2 matters)

Danielson National Insurance Company

Danieli Corporation

McCormick & Company, Inc.

Komatsu America Corp.

Domino’s Pizza

Pool Corporation

International Franchise Association

American Chemical Society

Gemological Institute of America

World Resources Institute

Work highlights

  • Represented Verra Mobility Corporation, in a case where a purported competitor, PlusPass Inc. has filed a federal antitrust lawsuit claiming that a 2018 merger created an illegal monopoly— that exclusive agreements between Verra’s subsidiaries and the RACs have foreclosed competition, and that Verra has foreclosed competition through various strategies to interrupt technology solutions by PlusPass and other high-technology would-be competitors.
  • Secured a significant appellate victory on behalf of AMN Healthcare,, in the lawsuit brought under federal and state antitrust laws in which Aya Healthcare alleged a potpourri of claims against AMN in an 80-page complaint seeking more than US$50 million in damages, including claims alleging the use of “no-poaching” restrictions, unreasonable non-compete agreements, exclusivity arrangements, a unilateral refusal to deal, sham litigation, monopolistic acquisitions and cash flow squeezes.
  • Represented Danieli Corporation in an antitrust complaint alleging that Danieli conspired with Commercial Metals Company to restrain trade in and monopolize the alleged rebar steel manufacturing market, with the Court dismissing all claims against both Danieli and CMC in May 2021.

Eimer Stahl LLP

Praised by a client for its ‘unparallelled expertise in antitrust matters, coupled with outstanding litigation skills‘, litigation boutique Eimer Stahl LLP represents clients in state and federal courts in a number of high-profile antitrust matters. Chemicals, industrial goods, technology, insurance, and electronics are among the industries covered by the practice which is led by Nathan Eimer, a ‘top-notch litigator with great strategic vision’ as well as antitrust litigation specialist Vanessa Jacobsen. The sector expertise of Michael McCluggage extends to financial services, airlines and equipment manufacturers, among others, while Scott Solberg covers class actions pertaining to allegations such as price-fixing. All mentioned attorneys are based in the firm’s Chicago office.

Practice head(s):

Nathan Eimer; Vanessa Jacobsen

Other key lawyers:

Michael McCluggage; Scott Solberg


‘The Eimer Stahl team has unparallelled expertise in antitrust matters, coupled with outstanding litigation skills. They are a go-to for “bet the company” litigation.’

‘Nate Eimer: A top-notch litigator with great strategic vision. Provides comprehensive legal services with a keen ability to emphasize and understand a client’s needs and objectives. It is rare to find an attorney who provide a legal guidance while seamlessly integrating the company’s internal objectives. Nate Eimer has been an individual we consistently confer with on the company’s most important matters based upon a high level of trust and confidence we have in him.’

‘The combined experience of the team is unmatched. The team has a proven track record and has successfully litigated a number of high stakes matters for several of my companies. In significant litigation, the firms discovery services is critical in managing budgets. The firm also understand how large companies operate and bills with transparency and integrity. In 10 years that I have worked with the team, I have yet to be surprised by a bill or had to dispute a charge.’

Key clients

LG Electronics Inc.

Masonite Corporation

Land O’Lakes, Inc.

Fox Corporation

Pilgrim’s Pride Corporation

The Dow Chemical Company

Gerdau Ameristeel Corporation

CNA Financial Corporation

Schreiber Foods, Inc.

SK hynix, Inc.

Work highlights

  • Represented Apple Inc. against claims of antitrust violations related to performance rights of musical works and counselled Apple as a potential opt-out plaintiff or claimant in other antitrust class actions.
  • Represented Masonite Corporation in a significant class action matter alleging price-fixing between Masonite and its principal competitor in the interior molded door industry.
  • Representing two unrelated defendants, Winfield Solutions, LLC, a subsidiary of Land O’Lakes, and Federated Cooperatives Limited (in Canada), in multidistrict antitrust litigation alleging an industry-wide conspiracy to boycott online competitors in the market for certain agricultural crop inputs.

Freshfields Bruckhaus Deringer LLP

With many of its team members having formerly worked at the DOJ and FTC, the antitrust litigation practice at Freshfields Bruckhaus Deringer LLP is involved in numerous high-profile matters, particularly in the technology space. Eric Mahr spearheads the team with strong expertise in multi-district litigation and is described by a client as a ‘truly excellent antitrust litigator and counselor’. Julie Elmer for whom ‘no case is too daunting’, routinely defends clients in class actions and commercial litigation, while Andrew Ewalt has recently handled matters pertaining to monopolization claims and unfair competition. All mentioned attorneys are based in Washington DC.

Practice head(s):

Eric Mahr

Other key lawyers:

Julie Elmer; Andrew Ewalt


‘Very diligent, efficient, service-minded with a good commercial understanding.’

‘Eric Mahr – exquisite understanding and depth of knowledge regarding antitrust litigation combined with terrific interpersonal skills and commercial understanding.

‘The team is extremely collaborative, working well in a large joint defense group consisting of many firms.’

‘Eric Mahr is a truly excellent antitrust litigator and counselor, and he has a good team working with him. Eric has a great courtroom demeanor and a calm, steady hand through crises. Andrew Ewalt has a deep knowledge of antitrust law and a measured, considerate, and deliberate approach.’

‘Seasoned, fearless, and confident litigators who can tackle an immense project and effectively, methodically cut it down into organized tasks, develop the most effective strategies, and execute efficiently and with a minimum of drama. First class professionals in every respect.’

‘Eric Mahr is the consummate professional -thoughtful, focused, and creative -yet with a fearlessness that is all too rare among high-stakes commercial litigators. His government experience gives him credibility and an edge in court and over his adversaries.

Julie Elmer is a can-do, relentless, and effective litigator who draws on her government experience to craft effective strategies and provide sound client advice. No case is too daunting for her to organize and set on course for a successful resolution.’

Key clients






United Airlines



Universal Music

Work highlights

  • Defending Google in In re Google Digital Advertising Antitrust Litigation, a massive multidistrict litigation involving antitrust and deceptive trade practice claims related to the company’s online advertising practices, as well as putative classes of publishers and advertisers, and individual opt-out publishers.
  • Secured victories for Cengage at multiple stages during the course of litigation for In re Inclusive Access Course Materials Antitrust Litigation, including successfully staying discovery, achieving consolidation and transfer to the Southern District of New York, and culminating in us winning dismissal of all claims so resoundingly that plaintiffs chose not to appeal.
  • Representing Cargill, one of the largest privately held companies in the US, in numerous US class actions stemming from a Canadian Competition Bureau investigation into alleged anticompetitive activity related to the sale of Crop Inputs.

Hogan Lovells US LLP

Hogan Lovells US LLP regularly defends clients in bet-the-company litigation and unfair competition cases, and works closely together with other departments of the firm including employment, intellectual property, and white collar. The practice group is lead by a quartet of attorneys based in Washington DC: Justin Bernick, Benjamin Holt, William Monts, and Charles Loughlin, all of whom have extensive experience representing domestic and international corporations in high-profile matters across a host of industries. Also in DC, Edith Ramirez excels at the intersection of antitrust with privacy and cybersecurity, particularly in the technology and life sciences sectors.

Practice head(s):

Justin Bernick; Benjamin Holt; Charles Loughlin; William Monts

Other key lawyers:

Edith Ramirez

Key clients

UnitedHealth Group

Viatris (formerly Mylan)

Societe Generale

Mitsubishi Heavy Industries


PPG Industries

Multiple Blue Cross Blue Shield plans

Ford Motor Company


Albert Einstein Healthcare Network

Choice Hotels International

Agri Stats, Inc.

Edwards Vacuum

Work highlights

  • Achieved a trial victory for Albert Einstein against the FTC regarding a hospital merger.
  • Represented Choice Hotels in multiple lawsuits (including putative class actions) challenging restrictions on branded keyword bidding in paid search advertising, obtaining dismissal of a class action and lawsuit brought by online travel agency.
  • Succeeded in obtaining summary judgment on behalf of Takeda Pharmaceuticals in a case brought by a competitor alleging that Takeda’s patent lawsuit violated the antitrust law and raising important issues regarding the intersection of intellectual property and antitrust laws in the pharmaceutical industry.

King & Spalding LLP

With an antitrust practice that has an ‘incredible wealth of knowledge’ , King & Spalding LLP routinely represents blue-chip clients across various sectors and industries. Norm Armstrong and Jeffrey Spigel, whose portfolios range from class action cases and civil and criminal antitrust investigations to other unfair competition, jointly lead the group from Washington DC. In Atlanta, Jeffrey Cashdan brings to bear experience in criminal and civil global cartel matters as well as antitrust actions in the chemicals, pharmaceuticals, beverages, and financial industries, among others. Emily Newton, also based in Atlanta, has recently handled cases regarding alleged conspiracies in jurisdictions across the US.

Practice head(s):

Norm Armstrong; Jeffrey Spigel

Other key lawyers:

Jeffrey Cashdan; Emily Newton


‘Great firm. Incredible wealth of knowledge.’

‘Norm Armstrong has first-rate experience that helps him navigate matters others cannot. And he is just such a stellar individual in how he conducts himself. His integrity is above all.’

Key clients


Delta Airlines

BASF Corporation

The Coca-Cola Company

Xerox Corporation

Porsche Cars North America

The Home Depot


Peloton Interactive, Inc.


Acuity Brands Lighting, Inc.


Evangelical Community Hospital


Deutsche Bank

H.I.G. Capital

Huntington Ingalls Industries

HD Supply

Ochsner Health System

InterContinental Hotels Group

Mueller Water Products, Inc.


Progressive Casualty Insurance Company

Starwood Energy Group

Tenet Healthcare

Under Armour

Hunter Douglas

Kemira Chemicals Inc.

Sutter Health System

Quikrete Holdings, Inc.

Westrock Company

Emory Healthcare

Queen’s Health System

Viserion Grain, LLC

Work highlights

  • Earning a win in a federal court jury verdict for BASF in its antitrust dispute with Ingevity Corp alleging the latter committed antitrust violations.
  • Serving as lead counsel to Progressive Casualty Insurance Co., and several related insurance entities, in consolidated antitrust actions alleging a conspiracy to restrain trade among U.S. automobile insurance companies.
  • Serving as lead counsel for InterContinental Hotels Group in two antitrust actions alleging a conspiracy among leading hotel brands to fix prices by agreeing to refrain from bidding on other hotel brand names as key words in online search engines.

McDermott Will & Emery LLP

McDermott Will & Emery LLP provides full-spectrum antitrust services for its clients and is particularly well regarded for its expertise in the healthcare sector, although its industry focus also extends to consumer goods, packaging, steel, and technology. Raymond Jacobsen leads the practice from Washington DC, while healthcare and antitrust expert Stephen Wu is located in Chicago alongside ‘outstanding litigator and advocate’ Katharine O’Connor. In early 2021, the firm added a number of new partners to its DC antitrust bench: Justin Murphy, who was previously at the DOJ and focuses on bid-rigging, price-fixing, hiring practices, and market allocations, former Hogan Lovells US LLP partner Andrew Lee, and Lesli Esposito, who joined from DLA Piper LLP (US).

Practice head(s):

Raymond Jacobsen

Other key lawyers:

Stephen Wu; Katharine O’Connor; Lesli Esposito; Justin Murphy; Andrew Lee; Michelle Lowery


‘Katherine O’Connor is an outstanding litigator and advocate. She is also excellent in court and has great strategic experience.’

Key clients

Allscripts Healthcare Solutions, Inc.

Constellation Brands

Amneal / Impax Laboratories

Lockheed Martin

Premier Inc.


NGK Insulators, Inc.

Treehouse Foods, Inc.

Ballad Health

Main Line Health


Baxter Healthcare

Kent Thiry (Former CEO of DaVita)

Southern Illinois Healthcare

Permanente Medical Group

Allscripts Healthcare Solutions, Inc.

TreeHouse Foods, Inc.

Geisinger Health

Lake Health

Cedars Sinai Health System

US Anesthesia Partners

Motorola Mobility LLC

Honey Bum

Work highlights

  • Representing two defendants, Impax Laboratories and Amneal Pharmaceuticals, in a large antitrust multidistrict litigation in the United States.
  • Secured a dismissal for client Allscripts in a case that arose out of a multi-year investigation brought by the Federal Trade Commission.
  • Representing Southern Illinois Healthcare, the largest non-profit healthcare system in Southern Illinois that operates three hospitals, healthcare clinics, and ancillary facilities, in a civil antitrust litigation filed in the United States District Court for the Southern District of Illinois by Marion HealthCare, a competing ambulatory surgery center.

McGuireWoods LLP

For McGuireWoods LLP, antitrust litigation constitutes one of its key practice areas, in which the firm represents trade associations, individuals, and corporations in matters including multi-district class actions and indirect purchaser litigation. Allegations of bid rigging, no-poach agreements, market allocation and monopolization form part of the department’s portfolio, led by Chicago-based ‘standout lawyer’ Amy Manning. In Richmond, Howard Feller and Brent Justus are key contacts, while Angelo Russo and Sarah Zielinski are recommended for their antitrust expertise in the firm’s Chicago hub.

Practice head(s):

Amy Manning

Other key lawyers:

Howard Feller; Brent Justus; Angelo Russo; Sarah Zielinski


‘Exceptional leaders in this industry. Amy Manning is a standout lawyer.’

Key clients

Fresenius Kabi

Schneider National Inc.

Argos USA Corp.

CSX Transportation Inc.

Elite Staffing, Inc.


Work highlights

  • Won an appeal for Fresenius Kabi USA LLC, a pharmaceutical manufacturer, in an antitrust matter in the United States Court of Appeals for the Third Circuit.
  • Represented transportation company Schneider National in an antitrust lawsuit in the United States District Court for the Central District of California. The case has been favorably settled.
  • Defending staffing agency Elite in an antitrust lawsuit brought by the Illinois Attorney General that raises novel questions regarding the scope of the Illinois Antitrust Act.

Morrison Foerster

With a practice group that is active on both sides of the aisle, Morrison Foerster is well equipped to represent clients in multidistrict class actions and follow-on civil litigation pertaining to allegations such as price-fixing, monopolization, no-poaching and wage-fixing. The practice group is led by Washington DC-based trio Jeff Jaeckel, Lisa Phelan, and Alex Okuliar. The latter joined the department as co-chair in early 2021 from the DOJ, and the firm also welcomed David Shaw in spring 2021, formerly at the DOJ. In San Francisco, Eliot Adelson handles complex antitrust litigation for clients from a variety of sectors, and Bonnie Lau is involved in cases with a large international dimension.

Practice head(s):

Jeff Jaeckel; Alex Okuliar; Lisa Phelan

Other key lawyers:

David Shaw; Eliot Adelson; Bonnie Lau; David Cross; Michael Miller

Key clients


DNA Genotek

Gary McDonald

Glenmark Pharmaceuticals


Matsuo Electric

Murata Manufacturing

Nexstar Media Group


Work highlights

  • Representing Nexstar Media Group, Inc., a national media company and the largest owner of local television stations in the United States, in an antitrust investigation by the DOJ and follow-on class action litigation related to the broadcast television spot advertisement market.
  • Defending Glenmark Pharmaceuticals, a major pharmaceutical company in a multi-district antitrust litigation, consolidated in the Eastern District of Pennsylvania, relating to alleged price fixing against generic drug makers.
  • Acting as lead trial counsel for Matsuo Electric Co., Ltd., a Japanese electric components company, in its defense of price-fixing conspiracy claims regarding capacitors brought by a direct purchaser class, indirect purchaser class, and opt-out plaintiffs filed in the Northern District of California.

Norton Rose Fulbright

The antitrust and competition practice group at Norton Rose Fulbright encompasses the representation of clients from a wide variety of sectors including pharmaceuticals and technology. Robin Adelstein is the key contact, who routinely handles complex class actions and multi-jurisdictional cases before state and federal courts and splits her time between New York and Washington DC. Business dispute expert Michael Swartzendruber in Dallas and Layne Kruse, who is based in Houston and DC, are further names to note. Darryl Anderson excels at the intersection of antitrust with securities and health care litigation in Houston, while DC-based Amanda Wait sports deep knowledge of and close relationships with both the DOJ and FTC.

Practice head(s):

Robin Adelstein

Other key lawyers:

Layne Kruse; Michael Swartzendruber; Darryl Anderson; Amanda Wait

Key clients

Cinemark USA, Inc.

AMC Theatres

Southwest Airlines Co.

Office Depot

Valeant Pharmaceuticals North America LLC (now known as Bausch Health US, LLC), Valeant Pharmaceuticals International (now known as Bausch Health Americas, Inc.), and Oceanside Pharmaceuticals, Inc. (all subsidiaries of Bausch Health Companies, Inc.)

Republic National Distributing Company, Central Liquor Company, L.P. and Best Brands of Delaware, LLC

Santek Waste Services

Mission Pharmacal

Robert Bosch Tool Corp.

Farmers Insurance

Flotek Industries

Landry’s Inc.

Phillips 66


Texas A&M University 12th Man Foundation

Takeda Pharmaceutical Company, Ltd. (and affiliates/subsidiaries)

Eli Lilly and Company

Work highlights

  • Representing an international pharmaceutical company in a case in which plaintiffs allege horizontal price fixing, market allocation and bid rigging among and between manufacturers and sellers of generic pharmaceuticals in putative antitrust class actions that have been consolidated in multidistrict litigation.
  • Representing Republic National Distributing Company (second-largest wine and liquor distributor in the US); Central Liquor Company, L.P. and Best Brands of Delaware, LLC in connection with antitrust litigation brought in the Northern District of Oklahoma alleging a per se group boycott, monopolization and attempted monopolization in violation of the Sherman Act and Oklahoma antitrust laws.
  • Represented Cinemark USA, Inc., the country’s third largest publicly-traded movie theater company, in a 14 year legal battle against Flagship Theatres of Palm Desert, LLC., where Flagship alleged that Cinemark violated California antitrust laws by engaged in two different forms of “circuit dealing.”

Pillsbury Winthrop Shaw Pittman LLP

Pillsbury Winthrop Shaw Pittman LLP‘s antitrust and competition practice group represents clients in matters such as price-fixing investigations, follow-on class action, and direct action litigation with a sector focus in energy, telecoms, and electronics, among others. Roxane Polidora leads the team from San Francisco, focusing on cartel cases in a variety of industries. Also located on the West Coast are unfair competition expert Jacob Sorensen and Andrew Lanphere, whose portfolio includes healthcare and real estate matters. Antitrust and securities litigation are strong suits of San Francisco-based Laura Hurtado, while Michael Sibarium in Washington DC is sought after by both the public and private sectors.

Practice head(s):

Roxane Polidora

Other key lawyers:

Jacob Sorensen; Andrew Lanphere; Laura Hurtado; Michael Sibarium

Key clients

KEMET Corporation and KEMET Electronics Corporation

TOKIN Corporation and TOKIN America, Inc.

24 Hour Fitness

Hotel Tonight, Inc.

Starkist Co.

CRST International, Inc. and CRST Expedited, Inc.

Infectious Diseases Society of America

Lucile Salter Packard

Norwegian Air

Air China

Lehigh Hanson

Work highlights

  • Represent KEMET Corporation and KEMET Electronics Corporation, a major American electronics manufacturer of capacitors in antitrust class and direct purchaser actions filed in federal court in San Francisco.
  • Representing TOKIN Corporation and TOKIN America, Inc., a Japanese electronics company and its U.S. subsidiary in antitrust class and direct actions filed in federal court in San Francisco in the inductors multi-district litigation.
  • Successfully defended IDSA, the world’s leading professional society of physicians, scientists and public health experts who specialize in infectious diseases (including Covid-19 and AIDS), and six physicians sued in their individual capacities against major RICO, antitrust, and fraud claims related to IDSA’s clinical practice guidelines for the diagnosis and treatment of Lyme disease.

Proskauer Rose LLP

Proskauer Rose LLP guides clients though all stages of major antitrust disputes and has a solid track record of defending them in bet-the-company antitrust litigation and regulatory investigations. The firm brings to bear a particular focus on the agriculture and food industry as well as the sports sector, where it routinely represents a large variety of professional sports organizations. Colin Kass acts as the practice’s co-head from Washington DC, handling matters ranging from class actions and price discrimination to competitor suits. Also in DC, co-head Christopher Ondeck leads the firm’s price gouging team with strengths in bet-the-company cases.

Practice head(s):

Colin Kass; Christopher Ondeck

Key clients

Wayne Farms

Major League Soccer

Arkema, S.A.


Grifols S.A.

Butterball, LLC

Daybreak Foods

Cross Country Health Care

United Egg Producers

Power Five athletic conference defendants (Pac 12, Big Ten, Big 12, ACC, and SEC)

IHS Markit

KB Holdings

Foresight Technology Corp.

Medley Capital

Reed Smith LLP

Reed Smith LLP represents clients in numerous kinds of class actions and civil litigation including matters pertaining to monopolization and unfair competition. The practice counts pharmaceuticals, manufacturing, insurance, financial services, and media technology among its key sectors. Practice head Michelle Mantine and healthcare specialist Will Sheridan are located in the firm’s Pittsburg office. Edward Duffy handles complex antitrust issues from Houston, while Daniel Booker and Debra Dermody are further key contacts in Pittsburg. Fred Egler left the firm in November 2021.

Practice head(s):

Michelle Mantine

Other key lawyers:

Will Sheridan; Edward Duffy; Daniel Booker; Debra Dermody

Sheppard, Mullin, Richter & Hampton LLP

The antitrust and competition team at Sheppard, Mullin, Richter & Hampton LLP handles and assortment of cases in its defense side practice, including monopoly violations, joint collaborations, and market foreclosures. One of the firm’s specializations lies at the intersection of antitrust and IP, particularly within the technology sector. Mike Scarborough leads the department from San Francisco, placing a focus on matters regarding international cartel investigations, class actions, commercial disputes, and consumer protection matters. Further key contacts are Michael Cohen and Leo Caseria, both in Washington DC. In January 2021, John Carroll joined the DC office from a previous position at King & Spalding LLP.

Practice head(s):

Mike Scarborough

Other key lawyers:

Michael Cohen; Leo Caseria; John Carroll

Key clients

Continental Automotive Systems Inc.

Samsung Electronics Co., Ltd.

Mastercard International


Jain Irrigation Inc.

Samsung Electronics America, Inc.

Fuyao Glass America Inc.

ACT, Inc.

San Francisco Association of Realtors

Reynolds & Reynolds Company

Cal Portland Company

Amerifoods Trading Co.

Odem International

Markstein Beverage

Work highlights

  • Leading the defense of the Reynolds and Reynolds Company in U.S. antitrust federal investigations, state attorney general investigations, federal multidistrict litigation and federal lawsuits challenging state regulations, all relating to alleged data access disputes in the market for automotive computer system software.
  • Represented Samsung Electronics in global patent and standards-related antitrust governmental proceedings and MDL litigation involving Qualcomm.

Skadden, Arps, Slate, Meagher & Flom LLP

Skadden, Arps, Slate, Meagher & Flom LLP routinely defends clients in opt-out litigation and treble-damage class actions as well as against monopolization and unfair competition claims. The firm is also heavily involved in the sports sector where it represents a number of sports leagues in antitrust litigation. Steven Sunshine and Clifford Aronson jointly lead the antitrust and competition practice group from Washington DC and New York, respectively. Boris Bershteyn (New York) and Tara Reinhart (DC) are further key contacts.

Practice head(s):

Steven Sunshine; Clifford Aronson

Other key lawyers:

Boris Bershteyn; Tara Reinhart

Vinson & Elkins LLP

The antitrust team at Vinson & Elkins LLP, praised for having ‘excellent skill and experience in defending antitrust civil litigations’, is regularly sought after by clients in the energy, technology, automotive, pharmaceutical, and chemical industries. Darren Tucker spearheads the practice from Washington DC with extensive experience in both domestic and international competition matters including global dominance investigations. Jason Powers and Harry Reasoner are names to note in the firm’s Houston office, while head of the antitrust government investigations team Hill Wellford and cartel and price-fixing specialist Craig Seebald are based in DC.

Practice head(s):

Darren Tucker

Other key lawyers:

Jason Powers; Harry Reasoner; Hill Wellford; Craig Seebald


‘V&E antitrust group has excellent skill and experience in defending antitrust civil litigations. Its team is concise and fees are reasonable compared with other large law firms.’

‘Craig Seebald-  highly experienced in defending antitrust civil litigations, including factual investigations, preparing legal briefs, and settlement negotiations. Also good at coordinating with foreign lawyers which is important in international cartel cases.’

Key clients

AirTran Airways

HeartBrand Holdings, Inc.


Huntsman International

Phadia US Inc.

Southwest Airlines, Inc.

Magellan Crude Oil Pipeline Company, L.P.

AK Steel Corporation, et. Al – railroad MDL

Google LLC


Wanhua Chemical (America) Co., Ltd.


Calumet Specialty Products

Maxell, Ltd. And Maxell Corporation of America


Switchback II Corporation

Enable Midstream Partners, LP

Group 1 Automotive, Inc.

ioneer Lrd.

The Sinclair Companies

Liberty Oilfield Services Inc.


Direct Energy

Noble Energy, Inc.

Plains All American

Chevron Phillips Chemical Co.

Vida Capital, Inc.

Work highlights

  • Advising Southwest Airlines in multi-district litigation where plaintiffs assert that airlines’ public comments signalled an intention to conspire with other airlines to limit growth in supply, as well as alleging that airlines had an incentive to limit individual growth in favor of overall industry profit.
  • Representing shippers from the steel, power generation, chemicals and agriculture industries in antitrust lawsuits alleging that the four largest railroads in the United States conspired to fix prices by establishing rate-based fuel surcharges.
  • Represented AirTran Airways, Inc (now owned by Southwest Airlines) in a multi-district antitrust putative class action involving a number of airlines, where plaintiffs filed a class action lawsuit alleging that AirTran and Delta conspired to adopt fees for the first checked bag, known as “first bag fees.”

Akin Gump Strauss Hauer & Feld LLP

Akin Gump Strauss Hauer & Feld LLP sports an antitrust and competition practice that encompasses the representation of companies from a variety of industries in both class actions and multi-district litigation. Corey Roush heads the department with extensive experience in the antitrust space with regular involvement in bet-the-company cases. Pharmaceuticals, chemicals, energy, technology, and consumer goods are among the sectors handled by Haidee L. Schwartz, while the expertise of C. Fairley Spillman extends to the intersection of antitrust with intellectual property. All mentioned attorneys are based in Washington DC.

Practice head(s):

Corey Roush

Other key lawyers:

Haidee L. Schwartz; C. Fairley Spillman; Gorav Jindal

Key clients

Peabody Energy Corp.

Houchens Industries, Inc.

Mars, Inc./Antech Diagnostics, Inc.

NTT Global Data Centers Americas, Inc. f/k/a RagingWire Data Centers, Inc.

Norwegian Seafood Council (NSC)


Oversea-Chinese Banking Corporation


Work highlights

  • Secured a successful result for Antech Diagnostics, Inc., the reference laboratory division of VCA Inc. (which is part of Mars Inc.), in a putative antitrust class action that spanned nearly three years.

Baker McKenzie LLP

Besides specializations in no-poaching practices and at the intersection of antitrust with IP, the antitrust and competition practice group at Baker McKenzie LLP is also involved in cartel investigations and follow-on class actions. Global chair Mark Hamer and North American chair Creighton Macy jointly head the team from Washington DC. Both routinely represent domestic and international clients from a variety of sectors including pharmaceuticals and technology. Further names to note are investigations expert Brian Burke in DC, as well as antitrust specialists Catherine Stillman and Jeffrey Martino in New York.

Practice head(s):

Mark Hamer; Creighton Macy

Other key lawyers:

Brian Burke; Catherine Stillman; Jeffrey Martino

Key clients


Bayer AG

Chr. Hansen

Environmental Data Resources


LaFargeHolcim Ltd.


NHK Spring



Quest Diagnostics

Sika AG


Zen-Noh Grain Corporation (ZGC)

Ballard Spahr LLP

Monopolization and conspiracy cases form the core of Ballard Spahr LLP‘s antitrust group, which represents clients on both side of the aisle. Leslie John, who has a particular focus on the pharmaceutical and health care industries, leads the practice from Philadelphia, where Jason Leckerman and Stephen Kastenberg are further key members of the team. In New York, James Mitchell is specialized in the securities industry, while Philadelphia-based Edward Rogers handles cases relating to monopolization and conspiracy claims. Denise Plunkett  left the firm in January 2021.

Practice head(s):

Leslie John

Other key lawyers:

Jason Leckerman; Stephen Kastenberg; James Mitchell; Edward Rogers


‘The team worked very well together- the work product reflected team engagement.’

‘Leslie John was laser focused on the legal issues, identifying -as it turned out, correctly- the issues and facts that would matter in court. She built our case on the relevant legal issues and got us an outstanding result.’

Key clients

American Board of Internal Medicine

MarketPlace PHL

Electric Utility Industry Sustainable Supply Chain Alliance

Johnson & Johnson and Janssen Biotech

Partnership for Safe Medicines

Wawa, Inc.

Corteva Agriscience, Pioneer Hi-Bred International, Inc.

Teva Pharmaceuticals

Kemp & Assoc., Inc.

GlaxoSmithKline LLC

American Board of Internal Medicine

MarketPlace PHL

Electric Utility Industry Sustainable Supply Chain Alliance

Johnson & Johnson and Janssen Biotech

Partnership for Safe Medicines

Wawa, Inc.

Corteva Agriscience, Pioneer Hi-Bred International, Inc.

Teva Pharmaceuticals

Kemp & Assoc., Inc.

GlaxoSmithKline LLC

Work highlights

  • Successfully defended the American Board of Internal Medicine against an antitrust class action lawsuit filed by four physicians attacking the very core reason for ABIM’s existence: board certification.
  • Defending Corteva and its subsidiary, Pioneer Hi-Bred International, Inc., in class actions in which plaintiffs allege a group boycott by the defendants (including other large agricultural companies, wholesalers, and retailers) not to do business with on-line retailers of “crop inputs,” including seeds and various crop protection products.
  • Defending Mountaire Farms in a class action in which plaintiffs allege that our client, along with other poultry processors, conspired to fix the wages and benefits for certain workers at poultry plants and also allegedly to unlawfully exchange wage and benefits information.

Cohen & Gresser LLP

Cohen & Gresser LLPpunches way above its weight in antitrust litigation and investigation’, according to a client. The firm joins the ranking with a practice that handles class action cases concerning allegations of cartel behavior, monopolization, and other exclusionary conducts. Clients stems from key industries including financial services, consumer products, technology, and pharmaceuticals. The ‘insightful and smart’ Melissa Maxman leads the practice from Washington DC, where Ronald Wick is also a key contact. The firm added class action heavyweight John Roberti, formerly at Allen & Overy LLP to its DC bench in early 2022.

Practice head(s):

Melissa Maxman

Other key lawyers:

Ronald Wick; John Roberti


‘Cohen & Gresser punches way above its weight in antitrust litigation and investigations. They are very creative about getting clients in the door and servicing them.  

‘This is a relatively new firm that is bringing excitement and innovation to the practice of law. They want to do well by clients, and they know that will take personalized attention.’

‘DC office and partners have unique combination of plaintiff and defendant litigation experience plus counseling and policy expertise.’

‘Melissa Maxman is a pioneer and one of the leading voices in the Bar.  She is insightful and smart – a hidden gem.  Ron Wick is cerebral and always comes up with a creative solution.’

Key clients

Goldman Sachs


Höegh Autoliners

Debevoise & Plimpton LLP

Working closely with offices outside the US, the antitrust practice at Debevoise & Plimpton LLP excels at handling matters with an international dimension in addition to its domestic litigation expertise. A duo consisting of Michael Schaper in New York and Ted Hassi in Washington DC jointly lead the practice, both of whom represent clients from various industries including technology and automotive. Also in New York, Erica Weisgerber is active on both sides of the aisle and has recently expanded her focus to COVID-related antitrust legislative developments.

Practice head(s):

Michael Schaper; Ted Hassi

Other key lawyers:

Erica Weisgerber; Leah Martin


‘Responsiveness of the client’s need, in particular, non-U.S. clients.’

‘Good knowledge of mentality of non-U.S. clients.’

Key clients

Peabody Energy Corporation

Arcesium LLC

Clayton Dubilier & Rice and Portfolio Companies

Toyota Motor Sales, U.S.A. and Toyota Canada, Inc.

Armando Kellum

GoDaddy, Inc.

Gogo, Inc.

DBS Bank Ltd.

The Bank of Yokohama Ltd

Ardagh Group

Discovery Communications

Schneider Electric

TPG Capital

Cornerstone Building Brands

Domtar Corporation

Assurant Inc.

Massachusetts Mutual Life Insurance Company


Kasowitz Benson Torres LLP

With particular strengths in bet-the-company antitrust cases, Kasowitz Benson Torres LLP represents clients on both sides of the aisle in industries such as pharmaceuticals, food, and technology. The firm is involved in a range of antitrust cases, defending clients against allegations including price-fixing, big-rigging, tying, exclusive dealing, and monopolization. The New York-based team is led by Hector Torres, who represents high-profile companies before federal and state courts, and Sheron Korpus, who ‘thinks strategically and has tremendous credibility’.  Kevin Arquit left the firm in May 2021 for an in-house position.

Practice head(s):

Hector Torres; Sheron Korpus


‘Sheron Korpus is a formidable opponent and a trustworthy ally. He thinks strategically and has tremendous credibility.’

Key clients

Teva Pharmaceuticals

Ford Motor Company


Pilgrim’s Pride


Kevin Mulleady


Work highlights

  • Representing Teva Pharmaceuticals and its US subsidiary Actavis, in defending many antitrust class actions brought by private plaintiffs, as well as an antitrust action brought by 48 States, the District of Columbia, and Puerto Rico, which are consolidated in an MDL in the Eastern District of Pennsylvania that allege price-fixing of over 100 generic drugs.
  • Representing Pilgrim’s Pride in a criminal price fixing investigation by the Department of Justice – Antitrust Division relating to the sales of broiler chicken products in the United States, one of the largest antitrust litigation matters currently ongoing in the U.S.

Ropes & Gray LLP

The services offered to clients by Ropes & Gray LLP span the whole gamut of antitrust litigation matters, from monopolization and unfair competition to price-fixing conspiracies and the intersection of antitrust with intellectual property. Multi-jurisdictional litigation is also part of the department’s portfolio, which is led by Washington DC-based Mark Popofsky and Jane Willis, splitting her time between Boston and DC. Further key names in DC include Chong Park and Samer Musallam, the latter who joined the firm in January 2021 from the DOJ’s antitrust division.

Practice head(s):

Mark Popofsky; Jane Willis

Other key lawyers:

Chong Park; Samer Musallam


‘Unflappable. Calm in the storm. Always thinking two steps ahead. Credible, fair dealing advocates who have cache with courts and adversaries alike.’

‘The individuals in the practice are incredible skilled, have such a depth of expertise. Importantly, they make all of this accessible to clients by partnering well and understanding how companies work. They are thoughtful about how to present their work and the solutions they create, knowing the realities clients face. The individuals I work with are also great human beings – kind, funny, and a delight to work with.’

Key clients

Google Inc.

Charter Communications

Work highlights

  • Representing Google as litigation counsel in the DOJ’s monopolization case against Google, filed in the U.S. District Court for the District of Columbia in October 2020, alleging monopolization of various markets involving Internet search.
  • Representing  State Street and its subsidiary, Currenex, Inc. in a class action on behalf of users of Currenex, an electronic trading platform for foreign exchange transactions.

Troutman Pepper

Troutman Pepper joins the ranking this year with an antitrust practice that sports particular strengths in the healthcare and pharmaceutical sectors, as well as in defending clients in multidistrict cartel class actions and against monopolization claims. Barbara Sicalides in Philadelphia and New York-based Daniel Anziska, both of whom are routinely involved in handling a wide range of antitrust claims, jointly lead the department. Clients in the healthcare and agricultural industries often turn to Jan Levine, located in the firm’s Philadelphia office, for her expertise in multidistrict class actions. Also in Philadelphia, Robin Sumner is well versed in complex civil litigation and securities law.

Practice head(s):

Daniel Anziska; Barbara Sicalides

Other key lawyers:

Jan Levine; Robin Sumner

Key clients

GlaxoSmithKline pcl

Big Heart Pet Brands (JM Smucker)

United Egg Producers; United States Egg Marketers; United Egg Association

Hikma Pharmaceuticals USA, inc.; Hikma Labs Inc; West-Ward Columbus Inc.

Centrum Valley Farms; Trillium Farm Holdings, LLC.

Vishay Intertechnology

Creekside Mushroom

Provoco Pinegood Sumneytown, LLC.

Thompson Tractor

Work highlights

  • Represented two industry groups against claims of an unlawful conspiracy to reduce the supply and thereby raise the price of eggs in a six week trial.
  • Defending Centrum Valley Farms, L.P. and Trillium Farm Holdings, LLC in a putative class action pending in Texas federal court alleging that producers, distributors, and sellers raised prices for eggs after the start of the COVID-19 pandemic in violation of the price gouging provisions of Texas’s Deceptive Trade Practices Act.
  • Representing Del Monte (now owned by Smucker) in multidistrict litigation, pending in federal court in California.