Merger control in United States

Arnold & Porter

Arnold & Porter works on merger clearances for high-profile deals in a variety of industries, representing the likes of General Electric and AT&T as specialist antitrust counsel. The firm's regular role as a 'hired gun' advisor on complex merger control-related issues is a reflection of its profile in the market. The merger control group is jointly led by Debbie Feinstein, the firm's global antitrust chair, and US head Jonathan Gleklen, both of whom combine regulatory expertise with strong litigation capabilities, shepherding business-critical transactions through FTC and DOJ oversight. Feinstein represented AbbVie in securing global clearance for its $63bn acquisition of Allergan in a standout mandate from 2020, while Gleklen has a strong record in hi-tech transactions. Also noted is Michael B. Bernstein, a more junior partner with a focus on contented mergers, investigations, and litigation. Senior associate Francesca Pisano is another key team member, regularly handling Hart-Scott-Rodino filings and merger investigations in a variety of industries, including financial services, industrial equipment, and medical devices. All named lawyers are based in Washington DC.

Practice head(s):

Debbie Feinstein; Jonathan Gleklen

Other key lawyers:

Michael B. Bernstein; Francesca Pisano

Key clients



Bristol-Myers Squibb






Reyes Holdings

General Electric

Work highlights

  • Advising Fitbit, Inc. on its proposed $2.1bn sale to Google.
  • Represented AbbVie in its $63bn acquisition of Allergan.
  • Represented BP on the sale of its entire business in Alaska, including BP Exploration (Alaska) Inc. and BP Pipelines (Alaska) Inc.’s interest in the Trans Alaska Pipeline System.

Cleary Gottlieb Steen & Hamilton

Cleary Gottlieb Steen & Hamilton remains a go-to name for high value, business-critical merger clearances, with its service group combining regulatory expertise with high-level antitrust litigation experience. The practice was bolstered by the arrival of Bruce Hoffman in March 2020, formerly head of the FTC Bureau of Competition, adding to the firm’s already considerable governmental expertise. Also among the team’s ranks are highly experienced figures such as George Cary, Mark Nelson, and Mark Leddy, who have continued to secure clearances for major transactions. Highlights from the review period include acting for T-Mobile in the multi-jurisdictional and highly complex merger between T-Mobile and Sprint, and representing United Technologies in its combination with Raytheon. Other noted practitioners include Elaine Ewing, a versatile antitrust counsel with a strong record in merger clearance for clients such as Google and Whirlpool; antitrust economic expert Kenneth Reinker; and Daniel Culley, who has great experience in the US market and specializes in high-tech industry deals. All named lawyers are based in Washington DC.

Other key lawyers:

George Cary; Mark Nelson; Mark Leddy; Elaine Ewing; Daniel Culley; Jeremy Calsyn; Kenneth Reinker; Brian Byrne; Matt Bachrack


‘We have used the Cleary antitrust team for over a decade as we continue to be impressed with their deep knowledge of our industry and us as a client. They take the time to really understand our business in a way that allows them to provide us with great results and guidance on matters around the world.’

‘Brian Byrne and Matt Bachrack deserve special recognition. They both are what you strive for in counsel – problem solvers who understand the business objectives and figure out creative and innovative solutions in order to help achieve the business objectives.’

‘Very practical, business-oriented advice.’

Key clients


Deutsche Telekom and T-Mobile US

Fox Corp.

JUUL Labs, Inc.

Molson Coors

United Technologies Corporation


Work highlights

  • Secured merger clearance as lead antitrust counsel to T-Mobile and parent company Deutsche Telekom in connection with T-Mobile’s monumental merger with Sprint Corporation for a combined enterprise value of $146bn.
  • Represented Alstom in obtaining merger clearance for its €15bn combination with Siemens’ Mobility Business.
  • Represented 21st Century Fox on US antitrust matters related to Disney’s $71.3bn acquisition of 21st Century Fox, including Fox’s film and television studios and its cable and international TV businesses, after the spin-off of other Fox businesses.

Latham & Watkins LLP

Latham & Watkins LLP‘s merger control offering is bolstered by its strong antitrust litigation capability, which enables the firm to work on all aspects of large-scale transactions, from securing global merger filings to litigating against the DOJ and FTC in relation to merger challenges. The team is involved in high-profile deals, having acted for Aon in securing clearance for its $80bn combination with Willis Towers Watson, and also representing NVIDIA in its $40bn acquisition of ARM—both complex transactions requiring clearances in jurisdictions across Europe and Asia. Amanda Reeves leads the DC-based team, and has played a leading role in many of the firm’s most complex mandates, including AMD’s $35bn acquisition of Xilinx. Michael Egge is also noted for his strong contribution to the firm’s success in securing challenging regulatory clearances, regularly acting for major clients including Siemens. Farrell Malone is another standout performer, with litigation experience before both the DOJ and FTC. Alan Devlin provides key governmental expertise as a former deputy director of the FTC’s Bureau of Competition.

Practice head(s):

Amanda Reeves

Other key lawyers:

Michael Egge; Farrell Malone; Alan Devlin

Key clients

Aon plc.

Siemens Healthineers AG



EssilorLuxottica S.A.

Aimmune Therapeutics Inc.

Momenta Pharmaceuticals

Mellanox Technologies, Inc.

ZF Friedrichshafen AG


Avery Dennison

Honey Science

Dairy Farmers of America


Advanced Micro Devices (AMD)


Skadden, Arps, Slate, Meagher & Flom LLP

Skadden, Arps, Slate, Meagher & Flom LLP represents a range of major corporates in large-scale merger clearances, ranging from Hart-Scott-Rodino filings to merger defense proceedings, including bench trials against the FTC, DOJ, and state attorneys general. A major success for the team during 2020 was its successful representation of Sprint against a state-level challenge to its $59bn combination with T-Mobile. Other blue-chip clients include Visa, PayPal, and AB InBev, reflecting the team's broad sector expertise and international capabilities. Washington DC-based practice co-head Steven Sunshine is a highly experienced litigator who led on the successful defense of Sprint, as well as a series of other high-profile merger proceedings; while in New York, Clifford Aronson is involved in numerous high-profile transactions across a variety of industries as antitrust counsel, and recently advised Zenimax on matters relating to its $7.5bn purchase by Microsoft.

Practice head(s):

Steven Sunshine; Clifford Aronson

Work highlights

  • Represented Sprint in antitrust elements of its $59bn merger with T-Mobile, including a successful merger defence trial against a suit filed by 13 state attorneys general.
  • Represented Sabre Corporation in its acquisition of FareLogix Inc for $360m and successfully blocked the Justice Department’s challenge to the proposed merger in a two-week bench trial.
  • Advised Anheuser-Busch InBev (AB) on the antitrust aspects of its $321m acquisition of the remaining stake in Craft Brew Alliance that it did not already own.

Weil, Gotshal & Manges LLP

Weil, Gotshal & Manges LLP is a go-to firm for high-profile, business-critical merger clearance and litigation, fielding a deep bench of specialists with extensive public and private-sector experience. The team handles major transactions in the tech and healthcare spaces, with standout clients including Microsoft, Johnson & Johnson, and Walgreens. Moreover, it is regularly mandated as specialist antitrust counsel on major deals, a standout example of which was its global representation of Allergan in the $63bn acquisition by AbbVie. The vastly experienced Steven Newborn heads the team, and has continued his successful record in merger clearance; he led advice on the Allergan deal. Former senior FTC lawyer Jeffrey Perry is also a key player, regularly securing unconditional deal clearances for major clients. Michael Moiseyev joined from the FTC in April 2020, and specializes in healthcare and tech work, bringing a number of new clients and notably representing Microsoft in its acquisition of ZeniMax. Brianne Kucerik stands out on the more junior end of the partnership. She has experience defending large-scale mergers in a variety of industries before the DOJ and FTC, including a key role in the Allergan transaction. Megan Granger was promoted to the partnership in January 2020 in recognition of her strong contribution to the merger control team. All named lawyers are based in Washington DC.

Practice head(s):

Steven Newborn

Other key lawyers:

Jeffrey Perry; Michael Moiseyev; Brianne Kucerik; Megan Granger;

Key clients

Abbott Laboratories



Blackstone Capital Partners

Johnson & Johnson

Kinder Morgan



The Sherwin-Williams Company

Walgreens Boots Alliance

William Hill

Work highlights

  • Represented Allergan plc as both US antitrust and global coordinating counsel, securing antitrust clearances in more than a dozen jurisdictions for AbbVie Inc.’s $63bn acquisition of Allergan.
  • Rrepresenting Microsoft in the US antitrust aspects of its $7.5bn acquisition of ZeniMax Media, Inc.
  • Acting as US antitrust counsel to William Hill in its approximate £2.9bn sale to Caesars Entertainment, Inc.

Baker Botts L.L.P.

Baker Botts L.L.P. fields a broad team of experienced antitrust attorneys, with a range of experience across merger clearance filings, investigations, and defense proceedings before the DOJ, FTC, state, and international competition bodies. The firm is regularly engaged as specialist antitrust counsel on major transactions in a variety of industries, with standout mandates from Arch Coal, Liberty Media, and Celgene during 2020. Of particular note is the team's wide governmental experience, with a number of senior practitioners holding major roles at the DOJ and FTC. Leaders in the team include Maureen OhlhausenJohn Taladay, and antitrust co-chair and prolific merger control adviser Stephen Weissman. Other names to note include Paul Cuomo, who handles complex merger clearance proceedings and litigation, playing a key role in the Liberty Media deal, in which he handled a DOJ second request; Mark Botti, who is also active in merger filings and investigations, particularly in healthcare; and Michael Perry, who has merger investigation and antitrust litigation experience with notable expertise in intellectual property and patent issues.

Practice head(s):

Maureen Ohlhausen; John Taladay; Stephen Weissman; Catriona Hatton

Other key lawyers:

Paul Cuomo, Mark Botti; Michael Perry; Joe Ostoyich


‘Joe Ostoyich has to be the best competition law attorney we have ever worked with. He has spend countless hours over the years learning our business and it shows in the quality of the advice he provides.’

Key clients

Abbvie, Inc.

Arch Resources, Inc.

Liberty Media Corporation

Merck & Co., Inc.

Unitedhealth Group Incorporated/unitedhealthcare, Inc./optum, Inc.

Royal Dutch Shell Group Of Companies

Aip, Llc

Mcdermott International, Inc.

Masco Corporation

Novartis International Ag

Caterpillar Inc.

Indorama Ventures Public Company Ltd

Hollyfrontier Corporation

Petiq, Inc.

Rwjbarnabas Health


Work highlights

  • Represented Arch Coal for antitrust clearances in its proposed joint venture with Peabody Energy.
  • Successfully achieved DOJ clearance for Liberty Media Corp and SiriusXM in connection with a proposed investment in iHeart Media.
  • Advise Celgene on its transformative $74bn mega-deal merger with BMS.

Cravath, Swaine & Moore LLP

Cravath, Swaine & Moore LLP has a strong track record in merger clearances for large-scale M&A, working in conjunction with its top-tier M&A practice on deals for blue-chip clients in a variety of industries. During 2020, the team, led by former FTC Commissioner and senior DOJ attorney Christine Varney, secured clearance for industry-defining deals in healthcare and food delivery, representing Mylan in its merger with UpJohn, and also acting for JustEat in its acquisition of Grubhub. In addition to Hart-Scott-Rodino filings and regulatory review proceedings, the team also has strong litigation capabilities, and is regularly involved in FTC and DOJ challenges and investigations. Another key team member is Maggie Segall, an up-and-coming partner who is building a strong reputation in this space. Segall played a key role in the Mylan transaction, as well as in Hasbro’s $4bn acquisition of Entertainment One.

Practice head(s):

Christine Varney

Other key lawyers:

Maggie Segall


‘Strong knowledge of internal workings of the agencies and good practicality in addressing real issues.’

‘Christine Varney is very experienced and has good knowledge of how the agencies work and is practical in addressing issues in the context of their importance and the factual setting. Maggie Segall is an up and comer with strong responsiveness and practicality.’

Key clients

Centrica plc

Hasbro, Inc.

Home Box Office, Inc. (“HBO”)


J.D. Power

Just Eat


Pitney Bowes Inc.

RELX Group

Roivant Sciences Ltd.

Work highlights

  • Advised Mylan N.V. on antitrust issues in connection with its $50bn combination with Upjohn, Pfizer Inc.’s off-patent branded and generic established medicines business.
  • Representing Illumina, Inc. in antitrust issues in connection with its pending $8bn acquisition of GRAIL, Inc., which was announced in September 2020.
  • Advising Just Eat N.V. on antitrust and corporate issues in connection with its pending $7.3bn acquisition of Grubhub Inc, which was announced in June 2020.

Crowell & Moring LLP

Crowell & Moring LLP is regularly involved in high-profile merger clearance proceedings, acting on behalf of major clients including United Airlines, AT&T, and General Mills in DOJ and FTC investigations and challenges. The firm's standout representation in 2020 was that of United Technologies, acting as antitrust counsel in its $135m merger with Raytheon, with practice co-head Shawn Johnson playing a leading role in securing DOJ clearance for the deal. The highly regarded Megan Wolf was also involved in the United Technologies matter, and was promoted to partner in early 2021 in recognition of her strong contribution to the antitrust team. Former FTC attorney Alexis Gilman is another key name, specializing in domestic and international merger clearances, particularly in the healthcare sector. Litigator Stefan Meisner joined from McDermott Will & Emery LLP in October 2020, bolstering the firm's capabilities in merger defense trials. All named lawyers are based in Washington DC.

Practice head(s):

Shawn Johnson

Other key lawyers:

Megan Wolf; Stefan Weisner; Alexis Gilman

Key clients

Raytheon Technologies Corporation

AT&T Inc.

Humana Inc.



The Chemours Company

United Airlines

General Mills, Inc.

JAB Holding Company

Novant Health

Summa Health

Dorel Industries

Work highlights

  • Represented United Technologies in connection with its $135m acquisition of The Raytheon Company.
  • Acting as lead antitrust counsel for Raytheon Technologies in connection with the divestiture of its Military Radios and Military Global Positioning Systems businesses to BAE Systems and its Optics Systems business to Amergint.
  • Represented AT&T in connection with the DOJ and State Attorneys General investigation into T‐ Mobile’s $26.5bn acquisition of Sprint.

Davis Polk & Wardwell LLP

Davis Polk & Wardwell LLP has a strong record in securing agency clearances for high-profile, business-critical transactions, and fields a team with significant public sector experience and expertise across merger filings and antitrust litigation. The team secured clearance for two significant transactions in 2020: it represented Charles Schwab in its $26bn acquisition of TD Ameritrade, and also acted for IHS Markit in its $44bn merger with S&P Global. Elsewhere, the team handles a range of Hart-Scott-Rodino filings, agency investigations, and defends against DOJ and FTC challenges to transactions in a variety of industries. Arthur Burke leads the global antitrust team, and is regularly sought out by major listed companies to handle complex merger proceedings, including FTC and DOJ investigations. Ronan Harty is another respected senior practitioner who led advice on the Charles Schwab approval. Other leading names in the team include John Leibowitz, who has standout agency experience as a former chair of the FTC, and has secured approval for a number of transactions; Howard Shelanski, who also has experience at the FTC and has also held a position at the White House; and Jesse Solomon, noted for his ability to co-ordinate merger proceedings in multiple jurisdictions.

Practice head(s):

Arthur Burke

Other key lawyers:

Ronan Harty; Jesse Solomon; John Leibowitz; Howard Shelanski

Key clients

Alliance Data Systems



Banco Bilbao Vizcata Argentina S.A.

Bristol Myers Squibb

Cadence Design Systems

Cboe Global Markets



Dean Foods Company

Emerson Electric Co.

Gilead Sciences, Inc.

IHS Markit

Ingersoll-Rand plc

KLA-Tencor Corporation

Kyocera Corporation

Learfield Communications, LLC

Lightyear Capital

McDonald’s Corporation

McKesson Corporation

Mobile Mini

Morgan Stanley

Natura Cosmeticos S.A.


Novo Nordisk

ORIX Corporation USA

Outotec Oyj


Raytheon Technologies Corporation

Reliance Industries Limited



Symphony Technology Group


The Charles Schwab Corporation

Royal Bank of Scotland

Tokyo Century Corporation

Traton SE

United States Golf Association

Universal Studios

Universal Scientific Industrial (Shanghai) Co., Ltd.

Verisk Analytics

Work highlights

  • Advising IHS Markit on its all-stock merger with S&P Global that values IHS Markit at an enterprise value of $44bn.
  • Successfully obtained DOJ approval for Charles Schab’s $26bn acquisition of TD Ameritrade.
  • Representing Atairos in connection with the acquisition of Innovative Interfaces by Ex Libris,

Dechert LLP

Dechert LLP stands out for its successful record before regulatory agencies, with the team regularly securing approvals and quick resolutions to merger investigations and review processes by both the FTC and DOJ. Notable clients include PetroChem and Aetna. The team is led by Steven Bizar in Philadelphia alongside Washington DC's Mike Cowie, who is noted for his record in avoiding second requests and advocating before agencies to secure prompt clearances. Also in Washington DC, Craig Falls routinely advises on the antitrust elements of complex transactions, including carve-outs and joint ventures.

Practice head(s):

Steven Bizar; Mike Cowie

Other key lawyers:

Craig Falls

Key clients



Ritchie Brothers Auctioneers Incorporated

TravelPort LP

DTE Energy

Work highlights

  • Advised One Equity Partners and PeroxyChem on all antitrust aspects in connection with OEP’s sale of PeroxyChem to Evonik Industries AG for $625m.
  • Advised Aetna on all antitrust aspects of the $850m sale of its workers compensation insurance business to Mitchell Genex.
  • Acting as antitrust counsel to Ritchie Bros in its acquisition of Rouse Services.

Jones Day

Jones Day enjoyed a productive year despite a difficult transactional environment, working on a number of major ongoing deals for top international clients. The team is defending Axon's purchase of VieVu against an FTC challenge, a mandate received on a standalone basis in reflection of its capabilities in that sphere. It is also representing Bombardier in its sale of Bombardier Transportation to Alstom, a highly complex multi-jurisdictional transaction involving litigation before the European Commission and the DOJ. The firm fields a broad national team of accomplished litigators with extensive government experience. Practice head Craig Waldman relocated to the DC office in 2021, and has handled major merger proceedings for clients including NVIDIA in the past year. Michael Knight has worked at both the FTC and DOJ, and is particularly noted for his healthcare sector expertise and experience of state action immunity. Also recommended in Washington DC is Kenneth Field, who co-chairs the global healthcare practice. Bruce McDonald in Houston heads up the Texas antitrust team and regularly works on merger reviews for energy, telecoms, and transportation companies. Ryan Thomas is noted for his broad sector expertise and key role in a number of business-critical merger review proceedings and challenges. Aimee DeFilippo is an up-and-coming practitioner with experience litigating against the DOJ, FTC, and state attorneys general. Named lawyers are based in Washington DC unless stated otherwise.

Practice head(s):

Craig Waldman

Other key lawyers:

Michael Knight; Bruce McDonald; Ryan Thomas; Aimee DeFilippo; Lauren Miller-Forbes; Kenneth Field


‘First, the Jones Day antitrust team has broad worldwide network of lawyers. In international M&A transactions and license transactions, we need to check filing requirements in relevant countries and file as quickly as possible. Its broad network is helpful in such transactions. Second, they know FTC practices very well. In the past transaction, we can obtain FTC clearance faster than expected.’

‘Ryan Thomas and Lauren Miller Forbes understand our business and attitude towards antitrust issues and always work quickly.’

Key clients

Axon Enterprise, Inc.

Bombardier Inc.

CBS Corporation

HeidelbergCement AG

NVIDIA Corporation

OMNOVA Solutions, Inc.

Sumitomo Chemical Co., Ltd.

Universal Weather and Aviation, Inc.

Verizon Communications, Inc.

Work highlights

  • Defending Axon Enterprise, Inc.’s completed acquisition of law enforcement-equipment manufacturer, VieVu against a FTC challenge.
  • Advising aerospace and rail equipment company Bombardier on the sale of its €7.45bn Bombardier Transportation railroad rolling stock and signalling business to Alstom.
  • Advised NVIDIA Corporation on its acquisition of Mellanox Technologies, Ltd.

Kirkland & Ellis LLP

Kirkland & Ellis LLP maintains an active merger control practice which stands out in Hart-Scott-Rodino filings, as well as large-scale merger defense before the DOJ, FTC, and state attorneys general. The team is also accomplished in handling related litigation and regulatory investigations. The firm's private equity clients are a regular source of merger control work, with the team routinely advising the likes of Ares and Bain Capital, and their portfolio companies on merger issues. Additionally, the team is entrusted with business-critical transactions, with standouts in 2020 including two major deals in the pharma sector: AbbVie's $63bn acquisition of Allergan, and Bristol-Myers Squibb's $90bn purchase of Celgene. Matthew Reilly is a key name in the merger control practice, and led advice on the AbbVie and Bristol-Myers Squibb representations. New York-based Ian John heads up the firm's transactional antitrust practice and has experience appearing before the regulatory agencies. Marin Boney specializes in merger review and investigation proceedings before the FTC and DOJ, and New York's Katherine Rocco is noted for her capabilities in managing large-scale domestic and cross-border investigations, as well as representing clients in complex merger litigation. Lawyers are in Washington DC unless stated otherwise.

Other key lawyers:

Matthew Reilly; Ian John; Katherine Rocco; Marin Boney

Key clients

Bristol-Myers Squibb Company

AbbVie, Inc.


Bain Capital

Huntsman Corporation

Fortive Corporation

Olympus Partners/Liqui-Box Corporation

WellCare Health Plans, Inc.

Bristow Group

The Blackstone Group

Work highlights

  • Represented AbbVie in its $63bn acquisition of Allergan.
  • Represented Ares Capital and National Veterinary Associates in its multibillion-dollar strategic sale to JAB and Compassion First.
  • Advised Bain Capital portfolio company Vertafore on its sale to Roper Technologies for $5.35bn.

Paul, Weiss, Rifkind, Wharton & Garrison LLP

Paul, Weiss, Rifkind, Wharton & Garrison LLP's broad antitrust practice fields a deep bench of lawyers with expertise across the full range of merger control issues, including Hart-Scott-Rodino filings, merger investigations and reviews, and high-profile defense matters before the DOJ and FTC. The team has served as lead antitrust counsel on major deals, representing AB InBev on its proposed acquisition of Craft Brew Alliance, and also representing Alexion in its acquisition of Protola Pharmaceuticals. The team's senior leaders include Washington DC-based Andrew Finch, a former Principal Deputy Assistant Attorney General at the DOJ's Antitrust Division and an accomplished litigator; Charles Rule, who maintains a broad antitrust practice and has experience in securing merger clearances from US and international agencies, including the European Commission; and New York's Aidan Synnott, who works prolifically with public companies and private equity funds, such as KPS Partners and Mitsubishi International, on merger clearances for business-critical strategic acquisitions and sales.

Practice head(s):

Andrew Finch; Aidan Synnott; Charles Rule

Key clients

ADT Inc.

KPS Capital Partners

Alexion Pharmaceuticals, Inc.

Kraft Heinz Company

Anheuser‐Busch InBev SA/NV

Mastercard International Inc.

Apollo Global Management

Mitsubishi Chemical

CI Capital Partners

Oak Hill Capital Partners


Refinitiv US, LLC


Teladoc Health


The Medicines Company

HAL Investments, Inc.

Uber Technologies

Kohlberg & Co.

Work highlights

  • Represented ADT Inc. as corporate and antitrust counsel in a $450m investment from Google.
  • Represented Alexion Pharmaceuticals, Inc as M&A and antitrust counsel in its $1.4bn acquisition of Portola Pharmaceuticals.
  • Advising Anheuser‐Busch InBev on the antitrust aspects of its proposed acquisition of Craft Brew Alliance.

Simpson Thacher & Bartlett LLP

Simpson Thacher & Bartlett LLP has a successful record in securing regulatory clearances for high-profile M&A deals, working in close collaboration with its global teams across Europe and the UK. Accordingly, the firm regularly represents clients in multi-jurisdictional clearance processes, a recent example of which was its work for Refinitiv in its $27bn acquisition by London Stock Exchange Group, requiring filings in 19 separate jurisdictions. Elsewhere, the firm has acted for clients such as Borg Warner and CSL Plasma in filings and merger approval proceedings before the DOJ and FTC, including second request responses and antitrust investigations. The team is led from New York by Peter Guryan and Washington D.C. by Sara Razi, who have previous experience working at the DOJ and FTC, respectively. The duo combine active merger filing practices with strong capabilities in civil and criminal litigation, allowing them to represent major clients in merger defense proceedings and regulatory investigations.

Practice head(s):

Peter Guryan; Sara Razi

Key clients


Cypress Semiconductor

First Data Corp.

Gardner Denver Holdings, Inc.

Harsco Corporation


L3 Technologies


Vivint Solar

Waste Management, Inc.

Work highlights

  • Obtained multi-jurisdictional clearance for BorgWarner in its $3.3bn acquisition of Delphi Technologies
  • Represented Refinitiv in an antitrust review related to its proposed $27bn acquisition by London Stock Exchange Group
  • Represented Waste Management in its $4.6bn acquisition of Advanced Disposal.

White & Case LLP

White & Case LLP is a destination firm for complex merger control work, with particular strength in coordinating large-scale, multi-jurisdictional work in collaboration with its global offices. A key example is the firm's recent work on Saudi Aramco's $69bn acquisition of SABIC, a deal requiring merger filings in 25 jurisdictions. Elsewhere, the firm combines expertise in merger filings and clearance from the FTC and DOJ, with strong capabilities in antitrust litigation, merger investigations, and defense proceedings. George Paul is the key name in the team, and is highly respected for his expertise in complex merger defense proceedings and litigation before federal agencies. Rebecca Farrington is another major player, focusing on merger defense and investigations; she recently represented DIC and Sun Chemical in its acquisition of BASF's pigments business. Senior associate Heather Greenfield has led on a growing number of major merger clearances, and also had a key role in Facebook's $5.7bn acquisition of Jio. Counsel Tamer Nagy is noted for his expertise in cross-border mergers, particularly those involving the Middle East. Named lawyers are based in Washington DC.

Practice head(s):

George Paul

Other key lawyers:

Rebecca Farrington; Tamer Nagy; Heather Greenfield; Anna Kertesz


‘What made White & Case a standout to work with is their overall sense of professionalism and personal attention the needs and goals of their client. They were truly great to partner with. They brought core legal and substantive knowledge to the table that was both deep and wide. When White & Case are in the room, there is no-doubt they are on your side and you are getting top-notch legal advice. When they made a commitment, they kept it. ’

‘We have a lean in-house legal team and faced a particularly time-crunched and complex deal requiring regulatory clearance. W&C not only provided external legal advice, but also quickly put up a team to help with the in-house legal team’s internal workload (e.g. liaising directly with the business and internal project management).’

‘George Paul and Anna Kertesz have quickly become my trusted partners: quick to respond (esp important when covering non-US time zones); and succinct and practical advice.’

‘W&C Merger Control team took great care in understanding what we needed and was creative in helping us find ways to accomplish our goals.’

‘We worked closely with Tamer Nagy. Tamer’s practicality and pragmatism was especially crucial in working with authorities and opposing counsel.’

‘The global antitrust team at White & Case is second to none. They are a true one stop shop, where the firm’s offices work as one team trying to solve their client’s business needs’.

‘The team is professional, knowledgeable and always accessible. ’

‘I worked with Tamer Nagy. He is an excellent attorney, very sharp and has knowledge and experience in several jurisdictions. We worked together and across the table from each other but he has shown always the dedication, result-oriented and great work ethics.’

‘Excellent responsiveness and technical expertise, very efficient – highly valuable and would not hesitate to recommend to others.’

‘The team is extremely strong from top to bottom. The firm can handle any matter, whether it be a cartel or civil investigation, complex merger or litigation. Also, White & Case has among the best networks of competition lawyers across the globe that it can and regularly draws from.’

Key clients


Saudi Aramco

Metso Minerals


GlobalWafers Co., Ltd.


DIC Corporation/Sun Chemical


Schneider Electric

Baxter International

Sony Corporation of America

Mobile Mini


Work highlights

  • Advised Facebook on its $5.7bn investment into Indian e-commerce platform Jio.
  • Represented Saudi Aramco in its successful $69bn acquisition of SABIC.
  • Advised Metso Corporation on the worldwide antitrust clearance for its €4bn combination with Outotec Oyj.

Debevoise & Plimpton LLP

Debevoise & Plimpton LLP combines deep regulatory expertise in merger control filings both within the US and internationally, with a team of accomplished litigators able to defend mergers before the DOJ and FTC, as well as state bodies. The firm works on a variety of global merger clearances in key industries, such as financial services, healthcare, medical devices, and telecoms, with notable clients including Arteta, GoDaddy, and CD&R. The team is led by New York's Michael Schaper, who regularly defends mergers against FTC and DOJ challenges and investigations, and DC-based Ted Hassi, who is active in a variety of merger control filings and litigation, including CD&R's $2.9bn acquisition of WhiteCap. Also noted are Erica Weisgerber, a counsel in the New York office who is a regular contributor to complex merger litigation, and DC-based lead antitrust associate Leah Martin, who has expertise in regulatory matters and litigation.

Practice head(s):

Michael Schaper; Ted Hassi

Other key lawyers:

Erica Weisgerber; Leah Martin


‘Very hands-on, responsive, and experienced.’

‘Mike Schaper is extremely knowledgeable and client-focused.’

Key clients

GoDaddy, Inc.

Gogo, Inc.

Clayton Dubilier & Rice and Portfolio Companies

Ardagh Group

Discovery Communications

Schneider Electric

TPG Capital

Toyota Motor Corporation


Artera LLC

Verizon Communications, Inc.

Elliott Management Corporation

American Express

Work highlights

  • Advising Clayton, Dubilier & Rice on its acquisition of HD Supply Holding Inc.’s Construction & Industrial-White Cap business for $2.9bn and its combination with Construction Supply Group.
  • Aadvised GoDaddy on its $218m acquisition of the registry business Neustar Inc.
  • Advising Verizon Communications Inc. on its $6.25bn acquisition of Tracfone.

Fried, Frank, Harris, Shriver & Jacobson LLP

Fried, Frank, Harris, Shriver & Jacobson LLP boosted its Washington DC antitrust team with the eye-catching hire of Barry Nigro, who had previously served as Principal Assistant Attorney General at the DOJ’s Antitrust Division. Nigro arrives with extensive experience of high-profile and complex merger clearances. Elsewhere, the team advises on an array of public company and private equity-backed merger clearances, handling Hart-Scott-Rodino filings, agency investigations, and merger-related litigation. New York’s Nathaniel Asker is another key figure in the team, regularly representing clients before the DOJ and FTC. He also has expertise in deals in the technology, defense, aerospace, and consumer products sectors. The practice group also regularly handles cross-border filings and clearance proceedings, working in close collaboration with its London office. New York-based special counsel Aleksandr Livshits is also noted for his capabilities in multi-jurisdictional clearance proceedings.

Practice head(s):

Barry Nigro

Other key lawyers:

Nathaniel Asker; Aleksandr Livshits


‘Barry Nigro has the rare combination of DOJ and FTC expertise that is invaluable to clients who need to understand the agencies’ latest thinking.’

‘Fried Frank’s Antitrust practice is excellent at the big things and the small things. Not only do they have a great knowledge of the law, the markets, and how investigations work, but they are also great at guiding a company in both the pre-deal antitrust analysis and in any review of a transaction. Their relentless hard work and attention to detail is second to none. They also give you the thoughtful and insightful advice you need, not necessarily what you want to hear. ’

‘Nate Asker is excellent. He knows what he’s talking about. He’s great at talking to high level executives and CEOs and also good at explaining complicated concepts into simple easy to understand terms. He also puts in the time to really understand our business and thereby is well positioned to advise us. We also worked with Aleksandr Livshits, who was incredibly knowledgeable, thoughtful, responsive and very hardworking.’

‘The rejoining of Barry Nigro is a great move for the firm. His decades of experience generally, and recent experience as the number 2 lawyer in the Antitrust Division, makes him a knowledgeable and skilled counselor on a broad array of government enforcement matters.’

Key clients

Aleris Corporation



1-800 Contacts



Simon Property Group, Inc.

Sinclair Broadcast Group, Inc.

AEA Investors

SPX Flow

BlackRock, Inc.

Work highlights

  • Advised Aleris Corporation, a global aluminum producer, on its $2.8bn acquisition by Novelis, Inc.
  • Advised Leidos on its $1bn acquisition of L3Harris Technologies’ Security Detection and Automation business.
  • Advised a leading global content and technology company on the FTC’s review of a consummated acquisition of a competitor.

Gibson, Dunn & Crutcher LLP

Gibson, Dunn & Crutcher LLP specializes in complex merger defense proceedings, regularly representing clients in litigation before the DOJ and FTC, as well as in state courts. The team has secured favorable decisions in a number of high-profile mergers, most notably the Sprint/T-Mobile merger, in which the firm represented Deutsche Telekom. Additionally, the practice has expertise in merger filings, cross-border arrangements, and investigations, and has a strong record in the media and television sector. The team is led by two versatile antitrust advisers in San Francisco's Rachel Brass and Stephen Weissman, who joined the team from Baker Botts L.L.P.. Adam Di Vincenzo is recommended for FTC investigations, and Scott Hammond and Los Angeles-based Daniel Swanson have experience in a diverse range of merger proceedings and litigation. Named lawyers are based in Washington DC unless stated otherwise.

Practice head(s):

Rachel Brass; Stephen Weissman

Other key lawyers:

Adam Di Vincenzo; Scott Hammond; Daniel Swanson

Key clients

Deutsche Telekom




Smithfield Foods



Baxter International


Barnes & Noble Education

Work highlights

  • Successfully represented Deutsche Telekom in the Southern District of New York case challenging the $26bn merger of T-Mobile and Sprint.
  • Obtained unconditional antitrust approval of Roche Holding AG’s $4.8bn acquisition of Spark Therapeutics, Inc.
  • Obtained unconditional antitrust approval of Schlumberger’s  transaction with Liberty Oilfield Services.


Goodwin has an active merger control practice, which has secured clearance for major transactions in the technology, software, and life sciences sectors during 2020. Notable mandates include representing the Transactions Committee of Sprint during its merger with T-Mobile, and acting for MyoKardia in its $13.1bn acquisition by Bristol Myers Squibb. Of particular note is the firm’s record in second request investigations, regularly securing clearances for high-profile deals in challenging circumstances. Paul Jin is a key team member, and is a prolific filer for commercial transactions across a broad range of industries, with particular expertise in Hart-Scott-Rodino provisions. Counsel Kara Kuritz previously worked in the DOJ’s Antitrust Division, and specializes in risk advice and HSR issues. Christopher Holding chairs the firm's antitrust group.

Practice head(s):

Christopher Holding

Other key lawyers:

Paul Jin; Kara Kuritz; Jon Herzog; Andrew Locke


‘Great team, dedicated and very smart. Clients really feel that this group is on their side and ready to protect them.’

‘Jon Herzog and Andy Locke are a dream team.’

Key clients

Alnylam Pharmaceuticals


BlueJeans Network, Inc.

Kabbage, Inc.

Moovit App Global Ltd.

MyoKardia, Inc.

Signal Sciences

Spark Therapeutics

Virtusa Corporation

Zoox, Inc.

Work highlights

  • Advised Spark Therapeutics on its definitive merger agreement with Roche for $4.4bn.
  • Rrepresented the Transaction Committee of Sprint during Sprint Corporation’s merger with T-Mobile US, Inc. to create the New T-Mobile.
  • Advised MyoKardia, Inc on the successful completion of its acquisition by Bristol Myers Squibb in an all cash transaction for approximately $13.1bn.

Hogan Lovells US LLP

Hogan Lovells US LLP handles complex international merger proceedings, including multi-jurisdictional filings and representation of major clients in investigations before the DOJ, FTC, and international competition bodies. The team is headed by Edith Ramirez and Joseph Krauss.

Linklaters LLP

Linklaters LLP works on large-scale merger clearance proceedings for top clients, particularly in the pharma and healthcare sectors. The firm is representing Bayer and Novartis in high-value, business-critical mergers, including acting as global counsel on Bayer's $7bn sale of its animal products business to Elanco. The team offers broad antitrust litigation expertise, with key partners having argued cases against the DOJ, FTC, and other key state and federal regulatory bodies. Douglas Tween worked for many years in the DOJ Antitrust Division, and has advised on mergers in a wide variety of sectors. Practice head Tom McGrath co-heads the firm's healthcare team, and was lead counsel on the Bayer-Elanco deal, continuing his strong record in securing clearance for major global pharma mergers. Washington DC-based Antonia Sherman was promoted to partner in May 2020, and plays a key role in many of the team's highlights. Sherman has particular expertise in multi-jurisdictional issues, especially relating to Latin America, and Hart-Scott-Rodino provisions.

Practice head(s):

Tom McGrath

Other key lawyers:

Douglas Tween; Antonia Sherman


‘What makes Linklaters so fantastic to deal with is their global footprint and the seamless way they are able to provide their clients with advice across all jurisdictions as a result. This coupled with the efficiency with which they consistently provide practical and commercial advice are in my opinion their greatest strengths.’

‘Antonia Sherman is an absolute gem! She is a pleasure to work with, provides excellent risk adjusted advice, efficiently leverages the expertise of her colleagues and delivers an exceptional, targeted work product on a timely basis each and every time. She is my go for all antitrust advice and consistently delivers!’

Key clients

Qiagen N.V.



Société Générale


Covestro AG

G4S plc

Strides Pharmaceutical

Work highlights

  • Advising GrandVision in EssilorLuxottica’s high-profile $8.5bn takeover creating a leading global eyecare and eyewear company.
  • Advised Bayer as lead global counsel on the $7bn sale of its animal health business to Elanco.
  • Acting as counsel to Strides in connection with various civil actions alleging price-fixing among manufacturers of generic drugs.

McDermott Will & Emery LLP

McDermott Will & Emery LLP represents major corporate clients in a variety of merger control proceedings, including standard regulatory filings and investigations, through to second requests, FTC reviews, and DOJ challenges, both during and post-merger. Notable representations during 2020 include acting for Constellation Brands in the ongoing FTC review of the sale of wine brands to Gallo, and defending Geisinger Health’s minority interest investment in Evangelical Community Hospital against a post-closing DOJ challenge. Healthcare and hedge fund transactions are particular areas of strength for the merger control team and wider antitrust department. The DC-based team is led by Raymond Jacobsen, an experienced litigator with a successful record in merger defense. Former FTC attorney Joel Grosberg has defended mergers before the DOJ, FTC, state, and foreign antitrust bodies, and has particular expertise in the tech, chemical, healthcare and life sciences industries. Jon Dubrow is noted for his successful record in second request proceedings, while Jeffrey Brennan plays a leading role in the firm's healthcare antitrust team. Senior associate Lisa Rumin advises healthcare, biotech, and pharma clients on merger clearance proceedings, and has a particular strength in handling investigations.

Practice head(s):

Raymond Jacobsen

Other key lawyers:

Joel Grosberg; Jon Dubrow; Jeffrey Brennan; Lisa Rumin


‘My experience with the team has been very thorough but practical. They listen and learn about the business and use that information in a valuable way through the merger process.’

‘They are pragmatic, responsive and hard working, they listened and learned as we went along and they cared about bringing value to our company.

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

Southern Illinois Healthcare

Permanente Medical Group

Memorial Hermann Health System and Memorial Hermann Accountable Care Organization

Steward Health Care LLC

Memorial Health System

Western Maryland Health System

CCPA Purchasing Partners LLP

Geisinger Health

Work highlights

  • Rrepresenting Constellation Brands in E&J Gallo’s $1.7bn acquisition of 34 wine and spirit brands from Constellation, currently responding to an FTC second request.
  • Representing Lockheed Martin in connection with its recently announced acquisition of Integration Innovation Inc.
  • Successfully represented Steward Health Care LLC in several antitrust claims and merger clearances.

Morgan, Lewis & Bockius LLP

Morgan, Lewis & Bockius LLP's active antitrust team regularly represents clients as specialist counsel across the full range of merger control matters, combining a prolific record in Hart-Scott-Rodino filings with regular success in second requests investigations and merger defense proceedings. The team is a repeat antitrust adviser to Apollo Global Management on its global M&A work, and also has standout expertise in the healthcare and life sciences fields, notably representing Pfizer in securing clearance for its merger of UpJohn with Mylan. The team is jointly led by Steven Reed in Philadelphia, Washington DC's Jon Roellke, and New York-based Harry Robins, who also leads the firm's transactional antitrust practice, and is noted for his expertise in HSR filings. Washington DC's Jonathan Rich defends mergers before the DOJ and FTC, and also coordinates global merger approvals in a variety of industries.

Practice head(s):

Steven Reed; Jon Roellke; Harry Robins

Other key lawyers:

Jonathan Rich; Ryan Kantor


‘Strong in health care, especially with DOJ alum, Ryan Kantor, who is very strong, and group leader Steve Reed, who brings a wealth of experience in litigation, particularly in pharma-related antitrust matters.’

Key clients



AP Moller Maersk

Apollo Global Management LLC

Aurobindo Pharma Ltd.

Blue Cross and Blue Shield of Louisiana


Digital Colony Partners

EQT Partners


Hitachi Metals

Intercontinental Exchange

Merck & Co. Inc.

McGraw Hill


New-Indy (a Robert Kraft company)


Perrigo Company plc

Pfizer Inc.

Platinum Equity



Securus Technologies Inc.

Sumitomo Corporation

Sun Capital Partners Inc.



Zoetis Inc.

Work highlights

  • Achieved a significant victory for Pfizer when the FTC accepted a proposed consent order, which concludes the FTC’s review of the proposed combination of Mylan N.V. and Pfizer’s Upjohn Business.
  • Assisting Intercontinental Exchange Inc. in the proposed acquisition of cloud-based mortgage platform Ellie Mae from private equity firm Thoma Bravo.

Shearman & Sterling LLP

Shearman & Sterling LLP has a diverse merger control practice, with key lawyers offering governmental experience and able to handle matters ranging from routine Hart-Scott-Rodino filings to international merger challenge proceedings and litigation. The team is active in major global transactions, both in collaboration with its successful M&A department and as specialist antitrust counsel. Notable work in 2020 includes the sector-defining combination of client Raytheon with United Technologies in a $120bn deal, and representation of Chevron in its acquisition of Noble Energy. US antitrust head and global co-chair David Higbee has an impressive record across merger proceedings and antitrust litigation, representing before the FTC and DOJ in major proceedings in a variety of industries. Higbee previously served as a Deputy Attorney General in the DOJ's Antitrust Division. New York-based specialist merger defense attorney Jessica Delbaum regularly appears before federal and state bodies, and also counsels clients on HSR compliance and merger investigations. Former FTC attorney Ben Gris handles merger investigations and litigation. Lawyers are in Washington DC unless otherwise stated.

Practice head(s):

Jessica Delbaum; David Higbee

Other key lawyers:

Ben Gris

Key clients



Vice Media

CPP Investments




Jet Blue

Thomson Reuters

Virbac Corporation


CSW Industrials

Work highlights

  • Advised Raytheon Technologies on the antitrust aspects of its $120bn combination with United Technologies in a merger of equals.
  • Advised Chevron Corp. on the antitrust matters related to its agreement to acquire all the outstanding shares of Noble Energy Inc. in an all-stock transaction valued at $5bn.
  • Advising ViacomCBS on the antitrust aspects of its sale of CNET Media Group to Red Ventures, a portfolio of more than 100 digital brands, for $500m.

Vinson & Elkins LLP

Based in Washington DC, Vinson & Elkins LLP's global merger control practice is extremely active in Hart-Scott-Rodino filings to the DOJ and FTC, as well as in merger clearance proceedings for deals in a variety of sectors, most notably tech and energy, with a strong focus on cross-border work. Standout highlights in 2020 include representing Google in its $2.1bn acquisition of Fitbit, and acting for Noble Energy in its acquisition by Chevron. Darren Tucker heads up the team, and has a strong record in securing merger clearance, handling FTC and DOJ investigations, and defending mergers in litigation. Former DOJ attorney Hill Wellford leads the investigations team and co-heads the HSR practice, while counsel David Smith also regularly represents clients in investigations and merger review proceedings.

Practice head(s):

Darren Tucker

Other key lawyers:

Hill Wellford; David Smith

Key clients

HeartBrand Holdings, Inc.


Huntsman International

Phadia US Inc.

Magellan Crude Oil Pipeline Company, L.P.

AK Steel Corporation, et. Al – railroad MDL

AirTran Airways

Aisin AW and subsidiary AW Texas


Apollo Global Management

Basalt Infrastructure Partners

Blue Racer, LLC


Calumet Specialty Products


Covey Park


Devon Energy Corp

Direct Energy

Energy Transfer LP

First Reserve Corporation


Google LLC

Goldman Sachs

HighPeak Energy Partners, LP

Hitachi Automotive Systems Americas, Inc.


Jagged Peak Energy

Kibo Software Inc.

Liberty Oilfield Services

LifeSize Inc.

Lupin Pharmaceuticals

Maxell, Ltd. and Maxell Corporation of America

Momentum Midstream

Magellan Midstream Partners

MoneyGram International Inc.

Morgan Stanley Infrastructure Partners

New Fortress Energy

Noble Energy, Inc.

Oncor Electric

Osaka Gas

Plains All American Pipeline

Quantum Energy Partners

Work highlights

  • Represnting Google in its $2.1bn acquisition of Fitbit, Inc.
  • Advised Noble Energy, Inc. on a definitive agreement with Chevron Corporation under which Chevron acquired all of the outstanding shares of Noble Energy in an all-stock transaction valued at $5bn.

Akin Gump Strauss Hauer & Feld LLP

Akin Gump Strauss Hauer & Feld LLP has a strong record across merger filings and defense proceedings, successfully litigating against challenges from competitors and government agencies and securing clearance for multibillion-dollar deals. Washington DC-based practice head Corey Roush is a highly rated practitioner who has successfully argued merger cases against both the DOJ and FTC. He continued his record with the successful litigation of FTC vs Peabody on behalf of Peabody Energy in 2020. Roush further secured clearance of 7-Eleven’s $21bn acquisition of Speedway, a major transaction in the sector. Gorav Jindal also enjoyed an impressive year, serving as lead antitrust counsel for Peabody on two major transactions. Former FTC deputy director of competition Haidee Schwartz has significant knowledge of antitrust planning and government merger review proceedings. Named lawyers are in Washington DC.

Practice head(s):

Corey Roush

Other key lawyers:

Gorav Jindal; Haidee Schwartz

Key clients

Peabody Energy Corp.

7-Eleven, Inc.

Enterprise Products Partners

SRC Energy

RagingWire Data Centers, Inc.

Verso Corporation

Dean Foods

Axinn Veltrop & Harkrider

Axinn Veltrop & Harkrider has a focused merger control practice, with recent standout highlights for clients including Google, Thermo Fisher, and Tufts Health Plan. The firm has a good record in securing clearance for big-ticket deals, and also defends clients against accompanying challenges and investigations by the DOJ and FTC. The team is overseen by New York’s John Harkrider and Washington DC-based Michael Keeley, both versatile antitrust litigators who have successfully cleared transactions totaling $500bn in recent years. Elsewhere the team offers significant in-house and multi-jurisdictional expertise, with California’s Daniel Bitton qualified in the US and EU for antitrust work. New York’s Lisl Dunlop led on clearing Tuft’s Health Plan’s merger with Harvard Pilgrim Health Care, and has also handled matters for Google.

Practice head(s):

John Harkrider; Michael Keeley

Other key lawyers:

Daniel Bitton; Richard Dagen; Lisl Dunlop

Key clients


Thermo Fisher Scientific

Stanley, Black & Decker (US) Inc.

Silver Lake Partners

Charles River Laboratories

McKesson Corporation

Centerbridge Partners (KIK)

Tyson Foods

Nishikawa Rubber Co., Nishikawa of America, Inc., Nishikawa Cooper, LLC

Ball Corporation

Stone Point Capital

Tufts Health Plan

Sunrun Inc.

Easton Diamond Sports

Work highlights

  • Representing Google in various investigations of its business practices in the US and other jurisdictions.
  • Represented Thermo Fisher Scientific in its proposed $12.5bn acquisition of QIAGEN NV.
  • Representing Tufts Health Plan, the second-largest health insurer in Massachusetts, in its merger with Harvard Pilgrim Health Care, the third-largest insurer.

Clifford Chance

Clifford Chance has continued to expand its US antitrust team, recruiting Peter Mucchetti from the DOJ in March 2020, and promoting New York’s John Friel to partner in May 2020. Mucchetti had previously served as chief of the DOJ Antitrust Division’s healthcare and consumer products team. This bolsters a team that already offers significant regulatory experience, with practice co-head Sharis Pozen having worked for both the DOJ and FTC. Timothy Cornell also jointly leads the team and is an experienced antitrust counsel with expertise in merger filings and joint venture formation. The team is noted for its representation of private equity clients, handling all merger control proceedings for CVC Capital Partners and Partners Group. Lawyers are in Washington DC unless otherwise stated.

Practice head(s):

Timothy Cornell; Sharis Pozen

Other key lawyers:

Peter Muchetti; John Friel


‘Clifford Chance’s merger control practice has a wealth of knowledge on international mergers.’

‘Sharis Pozen brings all of her energy to every matter. Her DOJ experience gives her insight into regulators. Sharis is thoughtful and strategic.’

‘Clifford Chance scored a big win with the addition of Sharis Pozen to the antitrust team. She’s smart, strategic, and insightful about the agency clearance process. And, particularly given her experience at GE, she offers practical advice that I’m confident clients appreciate.’

‘I’ve had the pleasure of working with Sharis – she’s outstanding and a true collaborative, strategic partner. I would jump at the opportunity to work with her again.’

‘This practice has a handful of experts which makes it the perfect one stop shop firm.’

‘What sets the CC team apart is their team approach to serving client needs and the depth of their team. It is not just the partners at CC that excel but also the associates who play an important client facing role.’

‘CC provides us with one-stop shopping for advice regarding UK/EU and US (and other jurisdictions as needed) antitrust and competition law issues. They keep abreast of developing issues and policies to ensure that their advice is comprehensive and appropriate for the situation.’

‘Tim Cornell always makes himself available when we need advice, usually on very short notice. Each time, he evidences his understanding of our business and its place in the market. His advice is keyed to our specific circumstances and ensures that we understand the variables key to his analysis.’

‘High quality advisers who have a real understanding of the DOJ motivation and thinking.’

‘Peter Mucchetti: Thoughtful advisor, solutions oriented, collaborative, and wealth of experience.’

Key clients

Davidson Kempner

CVC Capital Partners


Partners Group AG



The Carlyle Group

General Electric

Symrise AG

ICBC Standard Bank Plc



GSM Association



Deutsche Bank

Fidelity National Information Services

The London Stock Exchange

Epic Games


Work highlights

  • Advised GE on the acquisition by Danaher of GE’s Biopharma business.
  • Advising Epic Games, creator of the hugely popular video game Fortnite, on global litigation and antitrust authority investigations in Washington DC, Brussels, London, Paris, Dusseldorf, Australia and Japan.

Freshfields Bruckhaus Deringer LLP

Freshfields Bruckhaus Deringer LLP represents major corporate clients in merger review proceedings, including defending transactions before the DOJ, FTC, and state attorneys general, as well as handling Hart-Scott-Rodino filings. Washington DC's Mary Lehner is a key name for US merger control work, and previously served as an advisor to two FTC chairs. Paul Yde is a leading name in Washington DC.

Practice head(s):

Mary Lehner

Other key lawyers:

Paul Yde

Hughes Hubbard & Reed LLP

Hughes Hubbard & Reed LLP has a consistent record in securing merger clearance for mid-market domestic M&A transactions in a variety of sectors, with notable clients including Sinclair Broadcasting, InfoSys, and Kensington Capital. The team also has experience in cross-border work, handling proceedings involving Chinese and European jurisdictional elements. William Kolasky leads the team, and has extensive experience in securing antitrust clearance, as well as representing corporate clients in associated litigation. Robert Bell and Philip Giordano both have successful records in merger control matters before the DOJ and FTC, and also represent clients in investigations and litigation. All named lawyers are in Washington DC.

Practice head(s):

William Kolasky

Other key lawyers:

Robert Bell; Philip Giordano


‘Robert Bell is exceptional.’

‘This team is extremely responsive and able to handle large international antitrust procedure in short deleys’

‘Philip Giordano is hands on, responsive and he is extremely talented in dealing with US antitrust laws and coordinating with worldwide authorities through.’

Key clients




CF Finance Acquisition Corp.

Bluestar Alliance

Orient Overseas (International Ltd.)

Kensington Capital Acquisition Corporation

Sinclair Broadcast Group, Inc.



Work highlights

  • Advising Cartamundi Group, a leading global manufacturer of playing cards and board games, on seeking antitrust clearance for its acquisition of the United States Playing Card Company.
  • Representing CF Finance Acquisition Corp., a special purpose acquisition company backed by New York investment firm Cantor Fitzgerald, in a merger with GCM Grosvenor that will take the Chicago asset manager public.
  • Represented global information technology leader Infosys in its acquisition of Simplus, the global leader of Salesforce quote-to-cash.

Mayer Brown

Working closely with its global competition teams, Mayer Brown handles merger control issues for clients in a number of industries, acting for domestic and international businesses. The team represents clients throughout the merger clearance process, including Hart-Scott-Rodino filings and investigations, notably a number of complex second request proceedings. Key figures in the team include practice head Mark Ryan, and Oral Pottinger, whose expertise extends across HSR filings, domestic and international clearance proceedings, antitrust litigation, and merger advocacy. Named lawyers are in Washington DC.

Practice head(s):

Mark Ryan

Other key lawyers:

Oral Pottinger

Key clients

Advanced Disposal Services, Inc.

Dartmouth-Hitchcock Health (“D-HH”)

Nestlé S.A.

Work highlights

  • Represented Advanced Disposal Services in its $4.6bn acquisition by Waste Management.
  • Lead antitrust counsel for D-HH in its proposed combination with GraniteOne Health.
  • Handled Nestle’s first-ever public market transaction, which involved the acquisition of Aimmune Therapuetics.

Morrison & Foerster LLP

Morrison & Foerster LLP was engaged as merger control counsel in two of 2020’s largest deals. The team represented Softbank and Sprint in the $146bn combination of Sprint and T-Mobile, and also represented Softbank Vision Fund in its sale of Arm Limited to NVIDIA. The firm has also been active elsewhere, securing clearances for transactions in the chemicals and manufacturing sectors, as well as representing a range of clients in associated antitrust investigations and proceedings initiated by the DOJ and FTC. Practice head Jeff Jaeckel continued his strong record, successfully defending the Sprint/T-Mobile merger and securing clearance, while former senior DOJ practitioner Lisa Phelan became co-head of the global antitrust team in November 2020. Mergan Gerking was promoted to partner, and has extensive experience in merger review proceedings, including litigation, before the DOJ, FTC, and state bodies. Roxann Henry retired and David Meyer founded his own law practice. All lawyers are in Washington DC.

Practice head(s):

Jeff Jaeckel; Lisa Phelan

Other key lawyers:

Megan Gerking


‘Intelligent, experienced, excellent bed-side manner, cost effective and sensitive, calm, strategic, forward-thinking.’

Key clients

SoftBank Group Corp.


Murata Manufacturing Co., Ltd.

Hitachi Ltd.

Matsuo Electric Co., Ltd.

Nexstar Media Group, Inc.

Nouryon Pulp and Performance Chemicals LLC

Continental Building Products

ON Semiconductor

Target Corporation

Entrata, Inc.


Work highlights

  • Lead legal counsel to Sprint Corp. and for SoftBank Group Corp., the controlling shareholder of Sprint, on the landmark merger of Sprint and T-Mobile US Inc. announced on April 29, 2018.
  • Representing SoftBank Group Corp. and SoftBank Vision Fund in the $40bn sale of UK-headquartered multinational semiconductor and software design company Arm Limited to US chip company NVIDIA.
  • Represented Continental Building Products in obtaining clearance from the DOJ for its $1.8bn merger with a leading supplier of drywall.

O'Melveny & Myers LLP

O'Melveny & Myers LLP has a litigation-focused team with a successful record in defending high-profile mergers in litigation against the DOJ, FTC, and state-level antitrust authorities. The practice operates independently of its corporate team, securing antitrust mandates on a case-by-case basis. Regulatory reviews and second request proceedings are also areas of strength. Experienced litigators Ben Bradshaw and Ian Simmons head up the team. Katrina Robson is recognized for her success in high-profile litigation involving the DOJ and FTC, as well as for her strong capabilities in merger filings and clearance proceedings. Courtney Dyer is also accomplished in merger defense litigation against government agencies.

Practice head(s):

Ben Bradshaw; Ian Simmons

Other key lawyers:

Katrina Robson; Courney Dyer

Key clients

Harry’s Inc.

Synaptics Incorporated

SMART Global Holdings

Work highlights

  • Represented Harry’s, Inc. in conjunction with the FTC’s regulatory review of its acquisition by Edgewell Personal Care Company for approximately $1.4bn.
  • Representing Synaptics Incorporated in its all-cash acquisition of DisplayLink Corporation.
  • Avised SMART Global Holdings on its entry into a definitive agreement to acquire the LED Products business unit of Cree, Inc for up to $300m.

Orrick, Herrington & Sutcliffe LLP

Orrick, Herrington & Sutcliffe LLP stands out for its regular recruitment by major companies to handle merger control matters, with new cases from Toyota and Fisker in the past year. Additionally the firm handles all antitrust and merger control matters for Microsoft, reflecting its capabilities in big-ticket M&A. The team has a particular expertise in handling SPAC mergers, having advised on three standout SPAC mergers each worth over $1bn during 2020. Jay Jurata heads up the team, and is a trusted antitrust counsel to Microsoft across the full range of antitrust and merger clearance matters. Jim Tierney is a former head of the DOJ’s networks and technology enforcement section and is a prolific adviser to major tech clients including Microsoft and Expanse on completed and proposed M&A deals. Amy Ray led on Fisker’s $2.9bn merger with Spartan Energy, continuing her strong record in antitrust merger advice. Alex Okuliar left for a position at the DOJ. All named lawyers are in Washington DC.

Practice head(s):

Jay Jurata

Other key lawyers:

Jim Tierney; Amy Ray

Key clients

Microsoft Corporation

Fisker, Inc.

Toyota Motor

Clover Health

Expanse Inc.

Teachable Inc.

ANI Pharmaceuticals Inc.

Paul Hastings LLP

Paul Hastings LLP handles domestic and global merger control proceedings before the DOJ and FTC, fielding a team that includes former US government attorneys and international competition specialists. Thomas Brown heads the antitrust group from San Francisco, while Washington DC-based counsel Michael Wise is a leading figure in Hart-Scott-Rodino filings and regulatory investigations.

Practice head(s):

Thomas Brown

Other key lawyers:

Michael Wise

Sheppard, Mullin, Richter & Hampton LLP

Working in conjunction with its active mid-market M&A team, Sheppard, Mullin, Richter & Hampton LLP is heavily involved in merger control, handling merger review proceedings and HSR filings. The team has become increasingly active in representing private equity funds in HSR filings, acting for notable clients such as Arlington Capital and Blue Wolf. Elsewhere the team’s strength lies in healthcare, with DC-based Bevin Newman a noted expert in federal and state antitrust enforcement of healthcare transactions, acting for clients including Blue Shield of California and other top insurance companies. Leo Caseria is also recommended in the DC office. In Century City, David Garcia also regularly represents healthcare clients in merger review proceedings, including DOJ second requests and FTC investigations; and Michael Scarborough leads the team from San Francisco. Isabelle Rahman left for Reed Smith’s Brussels office in January 2020.

Practice head(s):

Michael Scarborough

Other key lawyers:

Bevin Newman; Leo Caseria; David Garcia

Willkie Farr & Gallagher LLP

Willkie Farr & Gallagher LLP has further expanded its antitrust capabilities with the opening of its Chicago office, led by Craig Martin, who joined the team from Jenner & Block LLP in March 2020. In New York, the group has solid capabilities in merger control filings and investigations, regularly working on cross-border transactions with its European teams. The team also stands out for its work on private equity transactions, representing notable investors such as Franklin Templeton and Third Point LLC. Elsewhere, the firm represents clients in strategic mergers and large-scale business transactions across a variety of industries, including financial services, healthcare, and manufacturing. William Rooney jointly leads the team alongside Jeffrey Korn, both of whom are well-respected antitrust lawyers with solid records in domestic and international merger control proceedings.

Practice head(s):

William Rooney; Jeffrey Korn

Other key lawyers:

Craig Martin


‘Bill Rooney makes complex cross-border antitrust issues manageable and addressable.’

Key clients

Atlas Holdings


FFL Partners

Follett Higher Education Group, Inc.

ForgeLight LLC

Forum of Firms

Franklin Templeton Investments

Highline Aftermarket, LLC

Mueller Industries, Inc.

Owl Creek Asset Management

Scientific Games Corporation, Bally Technologies, Inc. and SG Gaming, Inc.

Sterling Group

Teva Pharmaceutical Industries Ltd.

Third Point LLC

ValueAct Capital

Work highlights

  • Advised Highline Aftermarket, LLC on its acquisition by Pritzker Private Capital.
  • Represented Franklin Templeton in its definitive agreement to acquire Legg Mason, Inc. for $50.00 per share of common stock in an all-cash $4.5bn transaction.
  • Advised Conga in a transaction with Apttus to create the leader in digital transformation for commercial operations.


WilmerHale is active in merger review proceedings, and is recognized as a prolific Hart-Scott-Rodino filer and antitrust counsel in merger challenges before the FTC and DOJ. The team combines regulatory expertise with strong litigation capabilities, and a number of its team members are experienced trial lawyers. Thomas Mueller leads the practice group, and also co-heads the global antitrust department. Hartmut Schneider is noted in particular for his cross-border expertise; he is qualified in the US and Germany and has a good record in coordinating merger clearances in multiple jurisdictions. Also recommended is Leon Greenfield, who led on the representation of Danaher in its $21.4bn acquisition of GE Life Sciences' biopharma division. All lawyers are in Washington DC.

Practice head(s):

Thomas Mueller

Other key lawyers:

Hartmut Schneider; Leon Greenfield

Key clients

Danaher Corporation



Work highlights

  • Advising Danaher Corporation on its transaction with General Electric Company to acquire the Biopharma business of GE Life Sciences for a purchase price of approximately $21.4bn.
  • Represented Baker Hughes in relation to the creation of a joint venture between Baker Hughes and GE following GE’s sale of its majority shareholding in Baker Hughes.
  • Representing Toshiba in responding to FTC and EC investigations into potential violations of merger reporting requirements in connection with a large transaction.

Allen & Overy LLP

Allen & Overy LLP's New York and DC lawyers work together on a wide range of merger clearance proceedings, competition investigations, and remedy negotiations. The firm acts for international clients such as Mubadala and Thomson Reuters in pull-and-refile and second request investigations, risk management situations, and Hart-Scott-Rodino proceedings, with strong cross-border capabilities in line with the practice group's integration into the firm's global network. Elaine Johnston heads up the department, and is a versatile antitrust practitioner with experience in a variety of domestic and cross-border merger filing and clearance proceedings and litigation.

Practice head(s):

Elaine Johnston


‘Elaine Johnston is excellent – practical and commercial and easy to work with.’

Key clients

Advent International

Associated British Foods

BTG plc

EG Group

Experian plc

First American Corporation

Fresenius Kabi


Hitachi ltd

Imperial Brands plc

Mubadala Capital

Thomson Reuters

WillScot Corporation

Work highlights

  • Represented Wilscot in securing clearance for its acquisition of Mobile Mini.
  • Represented Mubadala in its $286.5m minority acquisition of REEF Technology.
  • Represented Mubadala in successfully receiving HSR clearance for its acquisition of a controlling interest in Peterson Farms

Baker McKenzie LLP

Baker McKenzie LLP stands out for its work on multi-jurisdictional merger control proceedings, having recently represented Hitachi in its $11bn acquisition of ABB’s power grid business, a major win for up-and-coming partner Brian Burke. Elsewhere the team represents major international clients, including Bayer, Daimler, and Prada, helping to secure clearance for multibillion-dollar transactions and handling DOJ second request proceedings. The team is led from Washington DC by global antitrust chair Mark Hamer and US head Creighton Macy, both of whom have previous experience working at the DOJ. Macy has secured clearance for major deals such as Bayer’s acquisition of AskBio and Cineplex’s purchase by Cineworld. Teisha Johnson made partner in January 2020 and is noted for her expertise in both merger control proceedings and accompanying DOJ and FTC investigations, working on public and private M&A.

Practice head(s):

Mark Hamer; Creighton Macy

Other key lawyers:

Teisha Johnson


‘Baker McKenzie has a very strong team with known knowledge and experience in antitrust cases.’

‘Mark Hamer and Creighton Macy are not only act as our external council but also recommend the best practice for business from an antitrust perspective. They always offer their opinion in the most economic manner and in-house council only need to focus on the case without paying attention to legal fees.’

‘Creighton Macy is very approachable and provides hands-on advice in a format that is easy to understand for business users. The team’s excellent understanding of the drug discovery and development process makes it stand out among its competitors in the life sciences industry. ’

‘The team’s international collaboration efforts allow for quick advice and responses to cross-border issues or concerns.’

‘Creighton Macy is very knowledgeable, provides practical advice, and incredible responsive. He is resourceful in finding solutions for complex matters, and my go-to for any urgent antitrust concerns that arise.’

‘Breadth of global knowledge — practice has footprint across geographies so they can provide timely advice in global basis.’

‘Creighton Macy: Collaborative, thoughtful, patient, and resourceful adviser committed to client service and success.’

Key clients




Chr. Hansen




Environmental Data Resources

Freeman Decorating Company



Helen of Troy


Knorr-Bremse AG

Lundbeck Pharmaceuticals

Mithra Pharmaceuticals


NHK Spring


Quest Diagnostics

Sika AG


Work highlights

  • Represented Avanci in its successful efforts to secure a DOJ Antitrust Business Review Letter for a cutting-edge 5G standard-essential patent joint licensing platform for connected vehicles and the Internet of Things.
  • Acted as lead antitrust counsel for global pharmaceutical company Lundbeck on the acquisition of Alder BioPharmaceuticals.

Cahill Gordon & Reindel LLP

Cahill Gordon & Reindel LLP stands out for its work with banks and financial institutions acting as financiers for major M&A. Key work streams for the team include working on merger clearances and broader antitrust issues relating to financiers' involvement in transactions, as well as regularly filing Hart-Scott-Rodino documentation for private equity funds and public companies. Of recent note, the firm has led on merger clearances for major clients including American Express and 1-800-FLOWERS, and has also been involved in high-profile deals on the financing side. Elai Katz heads up the practice, and is an experienced and versatile antitrust practitioner with expertise across M&A, financing, and merger-related litigation. Lauren Rackow takes the lead on antitrust advice to banks. All lawyers are based in New York.

Practice head(s):

Elai Katz

Other key lawyers:

Lauren Rackow


‘The team at Cahiil Gordon, under Elai Katz, manages to combine excellence, professionalism and wonderful service. They are fresh thinkers, benefiting from wealth of knowledge and experience.’

‘Elai Katz, to me, is one of the best antitrust lawyers out there. Super professional, with a great reputation and always a pleasure to work with. I’d recommend him to anyone seeking the best antitrust advice, both in mergers and in litigation.’

Key clients

American Express


Envigo International Holdings

Deutsche Bank

JP Morgan Securities


Cooley LLP

Cooley LLP handles the full range of merger control work, ranging from Hart-Scott-Rodino filings to DOJ and FTC investigations, defense litigation, and international clearance proceedings. Particularly strong in the technology and life sciences spaces, the firm has successfully secured federal and state clearances for deals under significant political scrutiny, such as Finicity's acquisition by Mastercard. The team is led by Washington DC-based Jackie Grise, who has a successful record in merger clearances, regularly defending transactions before the FTC, DOJ, and international competition bodies on behalf of major clients such as Finicity and Tableau. Another key team member is New York's Tanisha James, who specializes in multi-jurisdictional merger clearance for multibillion-dollar deals, and is recognized as an up-and-coming player within the antitrust merger space.

Practice head(s):

Jackie Grise

Other key lawyers:

Howard Morse; David Burns


‘Very intelligent analysis delivered practically. Real insight into agencies, and particular expertise regarding tech/pharma.’

‘An understanding of the media and technology space that transcends just antitrust knowledge.’

‘Overall very easy to work with, always available, and provide great insights/strategy recommendations.’

‘The antitrust team that we worked with was extremely well connected with regulatory agencies and very familiar to senior regulators. They also had considerable expertise responding to inquiries and navigating government agencies. They had a strong grasp of our business and the underlying issues that we were seeking to address.’

‘Howard Morse brings extensive expertise in navigating antitrust issues. David Burns is able to bring senior experience and support all aspects of our process including drafting, interviews, research and meeting preparation.’

Key clients

Exor/Giovanni Agnelli BV

Group Nine Media

I-Mab Biopharma


Looker Data Sciences



Roman Health Ventures/Ro

Temasek Holdings (Private) Limited


Arcus Biosciences

Cornerstone OnDemand

Forty Seven


Meredith Corporation


Prasco Laboratories


Travere Therapeutics (formerly known as Retrophin, which announced a company name change on November 16, 2020)





ZOLL Medical

Sony Corporation, Inc.

Patheon, Inc.

Gray Television, Inc.

Work highlights

  • Advised leading analytics platform Tableau on its agreement to sell to Salesforce in a $15.7bn all-stock transaction. While the UK’s CMA opened a nearly four-month investigation, the transaction was ultimately permitted to proceed without conditions.
  • Defended Finicity before the DOJ in a second request investigation regarding its agreement to sell to Mastercard for up to $985m.
  • Advised Forty Seven on its agreement to sell to Gilead for $4.9bn. The transaction required FTC clearance and was ultimately permitted to close without conditions.

King & Spalding LLP

King & Spalding LLP's national merger control team works prolifically on mergers across a variety of sectors, with standout involvements in the beverages and healthcare industries during 2020. An example of its work in this space was its representation of Rockstar in its $3.85bn sale to PepsiCo. The team has broad expertise in litigation and second request investigations alongside prolific Hart-Scott-Rodino filings, and among its top ranks are experienced lawyers with enforcement agency experience. Indeed, practice co-head Norm Armstrong formerly served as deputy director and deputy assistant director of the FTC’s Bureau of Competition. Joint practice head Jeffrey Spigel is noted for his broad corporate advisory expertise and role in global merger approval proceedings. Bob Cooper joined from Boies Schiller Flexner LLP in July 2020. All lawyers are based in Washington DC.

Practice head(s):

Norm Armstrong; Jeff Spigel

Other key lawyers:

Bob Cooper

Key clients


Delta Airlines

BASF Corporation

Xerox Corporation

Porsche Cars North America

The Home Depot


Peloton Interactive, Inc.

Under Armour, Inc.


Acuity Brands Lighting, Inc.


Evangelical Community Hospital


Huntington Ingalls Industries

HD Supply

Ochsner Health System


Mueller Water Products, Inc.

Sanford Health

Starwood Energy Group

Tenet Healthcare

Transocean Ltd.

Universal Health Services

WestRock Company

Work highlights

  • Represented Rockstar, a leading energy drink maker, in an FTC investigation of its $3.85bn cross-border acquisition by PepsiCo Inc; following investigation, the deal was approved.
  • Represented Ochsner Health System in regard to Lafayette General Health System’s merger into Ochsner.
  • Advising Sanford Health on its proposed merger with Intermountain Healthcare.


Milbank offers expertise in a range of complex merger clearance proceedings, with notable strength in handling restructuring and distressed acquisitions. A recent highlight in this space was its representation of Eldorado Resorts in its $17.3bn merger with Caesar's. The antitrust team also works closely with the firm's growing corporate department on a variety of other transaction types. The group is led by Fiona Schaeffer, an experienced antitrust attorney with expertise across litigation, merger filings and proceedings, and merger defense, with particular strengths in the healthcare, financial services, media, and communications sectors. Joe Rafferty is recommended for advice on Hart-Scott-Rodino filings.

Practice head(s):

Fiona Schaeffer

Other key lawyers:

Joe Rafferty

Key clients

Era Group Inc.

Sartorius AG

Ad Hoc Committee of Crossover Lenders to Rentpath Holdings, Inc.

Eldorado Resorts, Inc.

SUSE Software Solutions Germany GmbH

Hornbeck Offshore Services

United States Steel Corporation

Mood Media LLC

Pacific Investment Management Company LLC

OneWeb Limited

Work highlights

  • Advised Eldorado Resorts on its $17.3bn merger with Caesars Entertainment, Inc.
  • Advised US Steel on its merger agreement with Big River Steel.
  • Represented Era in its merger with Bristow Group Inc.

Ropes & Gray LLP

Ropes & Gray LLP’s antitrust team has experience in merger control proceedings in the US and EU, including regulatory filings, negotiations with competition authorities, and post-merger support. Boston-based counsel and practice co-head Deirdre Johnson is recognized for her expertise in Hart-Scott-Rodino filings, and is noted as a frequent filer by the FTC. Mark Popofsky also leads the team from the DC office. In line with the firm’s wider sector strengths, the team acts prolifically for healthcare, life sciences, and private equity clients in merger control proceedings. Also recommended in Washington DC is Mark McFall, who represented standout companies such as Pfzier, AbbVie, and Bayer in a number of leading transactions.

Practice head(s):

Mark Popofsky; Deidre Johnson

Other key lawyers:

Mark McFall

Key clients

Englewood Healthcare System

Alexion Pharmaceuticals Inc.

Bain Capital LP

Sarepta Therapeutics Inc.

Welsh, Carson, Anderson & Stowe

Eversource Energy

Harvard Pilgrim Healthcare Inc.

Advent International Corporation

Marucci Sports

General Catalyst Group LLC

Work highlights

  • Represented Advent International Corporation, a global private equity firm, in connection with several transactions, including in its acquisition of Forescout Technologies, Inc.
  • Rrepresented Eversource Energy, New England’s largest energy provider, in connection with its acquisition of Columbia Gas.
  • Represented Harvard Pilgrim Health Care, Inc., a non-profit health plan, in connection with its combination with Tufts Health Plan, Inc.

Sullivan & Cromwell LLP

Sullivan & Cromwell LLP advises on merger clearances for business-critical domestic and cross-border mergers, acquisitions, and disposals. Washington DC-based Renata Hesse and New York’s Steven Holley are key names in the team.

Wachtell, Lipton, Rosen & Katz

Wachtell, Lipton, Rosen & Katz focuses on merger control issues from its single office in New York, representing clients before the DOJ and FTC as well as in state-level investigations of mergers. Damian Didden and Ilene Gotts are contacts in the team.