Firm Profile > Hueston Hennigan LLP > Los Angeles, United States

Hueston Hennigan LLP
United States

Dispute resolution > General commercial disputes Tier 3

Rated by clients for its 'intelligence, creativity and trial skills', Los Angeles-based Hueston Hennigan LLP represents high-profile individuals and major companies in corporate disputes, class actions and other high-stakes trials. Founding partner John Hueston has a phenomenal track record in trials involving securities law, environmental issues and business torts. Among his ongoing matters, Hueston is representing Palantir Technologies in a trade secrets case against one of the company's original investors. Firm co-founder Moez Kaba is also noted for his diverse trial practice. Another key figure in the team is Robert Klieger, a go-to contact for disputes in the area of media and entertainment.

Practice head(s):

John Hueston

Other key lawyers:

Moez Kaba; Robert Klieger; Alison Libeu; Andrew Walsh; Christy Von der Ahe Rayburn; Joseph Reiter


‘The team at Hueston Hennigan is unique in that they bring such passion and focus to every engagement. They approach litigation with creativity and innovation rather than simply running the traditional playbook. Although the firm is relatively small, they pack an astounding punch and that’s due to the high quality of the people they recruit and retain. I have truly enjoyed my association with Hueston Hennigan and plan for it to continue as long as I’m in a position to engage counsel.’

‘John Hueston is one of the best lawyers I’ve worked with in my 35 year career. He puts together and leads great teams to achieve outstanding results. His teams are diverse and clearly enjoy working together.’

‘Hueston Hennigan’s partners and associates are exceptionally effective in commercial disputes – both on offense and defense.’

‘John Hueston and Moez Kaba are two of the best oral advocates and trial lawyers I’ve seen in my nearly thirty year long career. They can be as cerebral as any federal judge while being able to explain matters plainly and clearly to juries.’

‘John Hueston is incredibly sharp but also very personable. His mastery of the facts is always impressive. This coupled with his keen strategic mind is a powerful combination.’

Key clients

Edison International and Southern California Edison

Houston Astros

Internet Movie Database (, an Amazon Company)

Peloton Interactive, Inc.

Palantir Technologies

Clear One, Inc.

Monster Beverage Corporation

Sonder Corporation

Bausch Health


Freedom for Immigrants

Navajo Nation

Deloitte Consulting LLP

California Institute of Technology

Robert K. Barth

Dispute resolution > Corporate investigations and white-collar criminal defense

Based in Los Angeles, Hueston Hennigan LLP fields a team of ‘smart, creative, hard-working, ethical and determined attorneys’. Jointly led by John Hueston and Brian Hennigan, the group acts for corporations and individuals in white-collar criminal defense matters, investigations and litigation. Hennigan is a veteran trial lawyer, who is well-versed in FCPA, SEC and IRS matters; while Hueston, who has experience as a former prosecutor, counts Fortune 500 companies, governments and very high-profile individuals among his clientele. Another experienced trial lawyer in the team is Marshall Camp, who acts for clients in the technology, entertainment, medical devices, and financial services sectors. In December 2020, Michael Purpura joined the firm from the Office of Counsel to the President.

Practice head(s):

John Hueston; Brian Hennigan

Other key lawyers:

Vicki Chou; Marshall Camp; Brittani Jackson; Michael Purpura


‘Hueston Hennigan LLP’s lawyers are smart, creative, hard-working, experienced, and ethical and determined.’ 

‘Brian Hennigan is an extraordinarily good lawyer’. 

‘John Hueston has amazing experience and is masterful in a courtroom or other settings’.  

‘Hueston Hennigan have built their firm on the ethos of founding partners John Hueston and Brian Hennigan, who seek to deliver excellence in service and value to the client’.

‘They are all excellent lawyers but their service is what sets them apart’.

‘John Hueston has a sterling reputation that is well earned, it’s a rare combination of confidence and humility that allows him to connect with people as he does’.

‘You always get their attention when you need it’. 

‘They are a focused team with experience in handling high-profile matters that are often only handled by firms of a much larger size’. 

Key clients

William McGlashan, former co-Founder of TPG Capital and Founder of The Rise Fund

Southern California Edison

Rishi Shah, former CEO of Outcome Health

FTC Investigates Former Reality TV Show Star

Brian Kaspar, former Chief Scientist and Inventor of First Gene Therapy Drug

County of San Bernardino

Nutraceutical Corporation

Chinese Entrepreneur

Dong Yin Development (Holdings) Limited, et al.

Described by Chambers USA as a “the perfect litigation boutique” and the “Go-to firm for bet-the-farm litigation,” Hueston Hennigan LLP is “enjoying meteoric success.”

Since Hueston Hennigan opened its doors in 2015, it has established itself as a top, nationally recognized trial boutique known for finding a way to win in the highest-stakes litigation, trials and white collar defense cases.

Our lawyers approach cases differently than most litigation firms: from day one, we treat each matter as though it will go to trial. This emphasis on trial readiness inspires us to bring creative strategies to each matter. By developing a deep understanding of the facts, the context, and the law relevant to each case, we can aggressively litigate without relying on a rulebook. Our focused preparation and forceful posture in the first 90 days help us achieve the most successful and cost-effective outcomes for our clients.

This approach works because we don’t function like a traditional, hierarchal law firm. Instead, we train our teams to think like “outside GCs.” Since each client is a firm client, not a client of any individual partner, every lawyer is focused on comprehensively, creatively, and collaboratively solving their clients’ unique problems.

Representative reviews and recognitions

  • “Go-to firm for bet-the-farm litigation,” Chambers
  • “Hard-driving, insightful and aggressive,” Chambers
  • “A National Powerhouse,” Daily Journal
  • “A force to be reckoned with,” Chambers
  • “The firm to beat … dynamic and engaged … re-shaped the landscape,” Benchmark Litigation
  • 5 Go-To Boutique Trial Firms in the U.S., Law360
  • Top 20 Trial Law Firms in U.S. (repeated), Benchmark Litigation
  • National Elite Boutique Trailblazer, National Law Journal
  • California Trial Firm of the Year, Benchmark Litigation
  • Los Angeles Trial Firm of the Year (2019 and 2020), Benchmark Litigation

Our edge: remarkable results through disruptive strategies
We have a history of obtaining remarkable results in our client’s most important cases. Our creative and disruptive approach has earned us a national reputation as the “go-to firm for bet-the-farm litigation.” With ever-increasing frequency, we are asked by new clients to replace “big law firms” in their most important complex litigation.

Our successes have translated to a reputation as one of the top trial boutiques in the country, handling high-stakes matters for a client roster that includes Amazon, Tesla, Deloitte, Edison International, Qualcomm, T-Mobile, Disney, SpaceX, PricewaterhouseCoopers, Monster Energy, the Navajo Nation, Whole Foods, and many others.

Our team: unmatched talent at every level
Based in California and practicing nationwide, our more than 60 lawyers hail from the most selective law schools and clerkships, are veterans of prominent national law firms. Some have joined us after distinguished national careers in public service. Our attorneys have collectively participated in over 150 trials, and our partners are recognized as among the country’s top trial lawyers. At trial, our diverse teams reflect the profiles of our juries.

Nearly 70 percent of the associates at Hueston Hennigan have clerked for judges at federal district courts, courts of appeals, or the highest courts of several states. Former judicial clerks bring real-world experience and superior research skills to their work, seamlessly stepping into positions of significant responsibility. We offer competitive bonuses and credit for time spent clerking and encourage current or prospective clerks to apply.

Department Name Email Telephone
Marshall A. Camp 213.788.4541
Douglas J. Dixon 949.226.6741
Steven N. Feldman 213.788.4272
Brian J. Hennigan 213.788.4540
John C. Hueston 949.226.6740
Moez M. Kaba 213.788.4543
Robert N. Klieger 213.788.4310
Allison Libeu 949.273.4153
Alison L. Plessman 213.788.4542
Andrew Walsh 213.788.4282
Photo Name Position Profile
 Marshall Camp  photo Marshall Camp Partner
 Douglas Dixon  photo Douglas Dixon Partner
 Steven Feldman  photo Steven Feldman Partner
 Brian Hennigan  photo Brian Hennigan Partner
 John Hueston  photo John Hueston Partner
 Moez Kaba  photo Moez Kaba Partner
 Robert Klieger  photo Robert Klieger Partner
 Allison Libeu  photo Allison Libeu Partner
 Alison Plessman  photo Alison Plessman Partner
 Andrew Walsh  photo Andrew Walsh Partner
Chinese (Mandarin)

CLIENT: Jake Schatz, SVP, General Counsel and Corporate Secretary
COMPANY/FIRM: Electronic Arts
TESTIMONIAL: “The lawyers at Hueston Hennigan have distinguished themselves with their wise counsel and outstanding advocacy from the boardroom to the courtroom. Their ability to balance legal and business considerations practically and efficiently is truly exceptional. They are among our go-to trial counsel, and they deliver results.”

CLIENT: Michael Ray, Chief Legal Officer and Secretary
COMPANY/FIRM: Western Digital
TESTIMONIAL: “In one of Western Digital’s most important legal matters in recent years, Hueston Hennigan partnered with us to craft and implement a creative, multi-staged litigation strategy that delivered repeated victories in both court and international arbitration. Hueston Hennigan has a very deep bench of legal talent and are our trusted counselors for our most important cases.”

CLIENT: Melissa Scanlan, Senior Director for Litigation and Antitrust
TESTIMONIAL: “Hueston Hennigan is an ideal choice for the toughest cases; the combined, concentrated trial talent of Hueston Hennigan makes this firm a top-shelf litigation choice for virtually any high-risk, complex matter.”

CLIENT: Barry H. Caldwell, General Counsel
COMPANY/FIRM: Waste Management
TESTIMONIAL: “Hueston Hennigan lawyers distinguished themselves as dynamically creative and unsurpassed in courtroom advocacy. Their care extends beyond the individual case: they work closely with our in-house counsel, and their post-mortem review of matters is a value-add that fits squarely with our continuous improvement culture. They are a go-to firm for the most complex and challenging cases.”

CLIENT: Julie Davis, Global Chief Legal Officer & Corporate Secretary
TESTIMONIAL: “I turn to Hueston Hennigan for our most significant legal matters. In each engagement, they have provided extraordinarily effective lawyering, counsel, and strategic business advice. They are unrivaled as go-to trial counsel for complex, high-risk litigation.”

CLIENT: Alec Baldwin, actor and philanthropist
TESTIMONIAL: “I hired Hueston Hennigan because of their extensive experience litigating and winning high-profile fraud cases. It was a fantastic decision. In short order, they filed a compelling complaint, defeated the other side’s efforts to dismiss the case, strategically obtained devastating discovery, and secured a phenomenal settlement for me. Their commitment to my case, insights, and advocacy resulted in a total and unmitigated victory.”

CLIENT: Arnold Pinkston, General Counsel
TESTIMONIAL: “John Hueston and Brian Hennigan have created a world-class law firm for the 21st century, capable of serving the litigation needs of individuals to global companies. Its talented team of professionals is dedicated to working closely with clients and has the creativity and flexibility to bring the simplest solutions to the most complex problems.”

CLIENT: William B. Sailer, Senior Vice President and Legal Counsel
COMPANY/FIRM: Qualcomm, Inc.
TESTIMONIAL: “Hueston Hennigan creatively and relentlessly investigated and prosecuted claims arising from a complex, high-stakes commercial fraud, obtaining recoveries worth more than $75 million. They skillfully and efficiently positioned us for courtroom victories, while working hand-in-glove with in-house counsel to ensure that the legal strategy aligned with our business objectives. Their team was a pleasure to work with, and I strongly recommend the firm for difficult and important cases.”