Cleary Gottlieb Steen & Hamilton maintains a market-leading offering that spans the full range of antitrust litigation, with notable strength in merger litigation and contentious cross-border mandates. Leah Brannon and Jeremy Calsyn jointly oversee the department; Brannon focuses on global merger clearance matters, monopolization cases, and conspiracy litigation, while Calsyn represents clients in class actions and cartel and price-fixing litigation, particularly in the automotive parts industry. Dave Gelfand is a name to note on the merger litigation front, having successfully represented major healthcare and aviation clients in high-profile litigated merger challenges. Heather Nyong’o is another key name for civil antitrust litigation work, regularly representing major multinationals and executives in such cases, while seasoned antitrust litigator George Cary  handles IP-related antitrust work in the high-tech sector from the San Francisco office. Ryan Shores joined from Shearman & Sterling LLP in July 2023, further strengthening the firm’s merger challenge offering. Unless otherwise stated, all mentioned lawyers are based in Washington DC.

The antitrust team at Cravath, Swaine & Moore LLP routinely acts for leading names in the tech, media, and life sciences sectors and has extensive experience handling precedent-setting, business-critical litigation cases spanning the full range of antitrust issues, including monopolization allegations, price-fixing, and consumer class actions. Former assistant attorney general for antitrust Christine Varney and former FTC Commissioner Noah Joshua Phillips  in Washington DC, jointly head the team, leveraging their agency experience to advise clients in bet-the-company litigations and class actions. Seasoned litigator David Marriott takes point on both vertical and horizontal merger challenges and has an impressive track record in this area. Described by clients as ‘one of the best,’ Kevin Orsini, who co-heads the firm’s litigation department alongside experienced antitrust litigator Gary Bornstein, is another key member of the team who routinely takes point on large and complex antitrust litigations and class action cases in the digital advertising and finance sectors. Lauren Roberta Kennedy is a key name for multidistrict litigations in the healthcare sector. Unless otherwise stated, all mentioned lawyers are based in New York.

Counting blue-chip companies in the tech, consumer goods, telecoms, and pharma sectors among its impressive roster of clients, the antitrust department at Gibson, Dunn & Crutcher LLP fields a deep and experienced bench with extensive experience advising on the full range of contentious antitrust issues. In San Francisco, practice co-head Rachel Brass has notable experience advising clients in high-stakes appellate litigation before the Supreme Court, as well as handling both indirect and direct purchaser class actions. Brass works alongside co-heads Cynthia Richman and Stephen Weissman, both based in Washington DC, who take point on antitrust defense work and litigated merger challenges, respectively. Also in Washington DC is Joshua Lipton, whose broad antitrust litigation practice covers both investigations and merger challenges. The Los Angeles-based Daniel Swanson has a strong track record litigating Sherman Act Section 2 monopolization and dominance cases, while Eric Stock, in New York, is a key contact for clients in the pharma, financial services, and tech industries. Rich Parker left the team in April 2023.

Jones Day’s antitrust and competition team leverages its significant agency experience to offer a strong litigation practice, advising major domestic and international corporations and banks across the healthcare, finance, transport, and protein industries on the full range of contentious antitrust issues. Craig Waldman oversees the team from Washington DC, working alongside seasoned litigator John Majoras, a key name for cartel follow-on litigation, large class actions, and merger challenges, and Julie McEvoy, who takes point on putative antitrust class actions in the pharma and protein industries. Also in the key team are David Kiernan, in San Francisco, and Cleveland’s Michelle Fischer; Kiernan is a key contact for clients in the tech and healthcare industries, while Fischer handles class actions in a broad range of industries. Tiffany Lipscomb-Jackson, in Columbus, is a key contact for clients in the petroleum, pharma, and automotive industries and has notable experience handling monopolization allegations, price-fixing cases, and bid-rigging claims. 2023 saw the firm expanding its agency experience with the arrival of Washington DC-based duo Koren Wong-Ervin and Kevin Hart, from the FTC and DOJ, respectively. Another new arrival is Minnesota-based Peter Schwingler, who joined from Stinson LLP in 2023; formerly at the DOJ’s Antitrust Division, Schwingler has a strong track record litigating merger challenges.

With a notable and strong track record with contentious merger clearances, both domestic and international, the antitrust and competition team at Kirkland & Ellis LLP regularly represents leading healthcare, pharma, and life sciences sector clients on the full range of contentious antitrust matters, including reverse payment cases, IP-related antitrust litigation, and monopolization claims. Recent work highlights for the team include securing a complete defense verdict for Gilead Sciences in a class action involving claims of reverse payments. Key names in the team’s Chicago office include James Mutchnik and Daniel Laytin; Mutchnik focuses on cartel-related litigation, including price-fixing and monopolization claims, while Laytin has long-standing expertise advising on the full spectrum of contentious antitrust issues. Also in Chicago is Christa Cottrell, who handles large class actions in the pharma and healthcare space. Olivia Adendorff splits her time between Dallas and Washington DC and is another name to note for class actions, while Devora Allon handles pay-for-delay cases from New York.

Latham & Watkins LLP 's ‘top notch antitrust and civil litigation attorneys’ deploy their antitrust expertise across a range of matters, with particular skill in handling cases concerning algorithmic price fixing and the sports sector. The practice is set up to represent clients facing actions in the US and abroad, working with its teams in Brussels and further afield to assist with investigations and litigation arising thereof. The practice is led in tandem by Washington DC’s Amanda Reeves, who assists clients hailing from a range of industries when facing monopolization claims, while Belinda Lee represents clients facing unfair competition claims and consumer class actions out of the San Francisco office. Christopher Yates, also based in San Francisco, defends clients in the face of aftermarket monopolization claims and antitrust matters in the sport and entertainment industries, with Washington DC-based Jennifer Giordano handles class actions linked to both monopolies and monopsonies, price fixing and tying allegations. Al Pfeiffer is counsel of choice for a number of Fortune 500 companies in dominant firm conduct proceedings, with Aaron Chiu advising clients in the digital and sports fields on antitrust matters; both are based in San Francisco. Made partner in January 2023, Anna Rathbun in Washington DC handles DOJ and FTC investigations, as well as cases before other foreign regulators.

Morgan, Lewis & Bockius LLP‘s attorneys boast a ‘breadth and depth of knowledge’ across a range of sectors, with particular strength in assisting healthcare, tech, and financial services clients facing FTC challenges to mergers, MDL proceedings and antitrust suits tied to drug pricing, algorithmic pricing, no poach and wage fixing allegations. Philadelphia-based Steven Reed spearheads the firm’s global antitrust group, representing clients in antitrust and merger suits, with a wealth of experience in the pharmaceutical industry. He is ably supported by deputy practice heads Ryan Kantor, operating out of Washington DC and appearing for clients before the FTC and DOJ, and Brendan Fee, also based in Philadelphia and noted for his advice on matters such as price-fixing and vertical restraints. In Chicago, Kenneth Kliebard defends financial services companies facing antitrust and consumer protection class actions, with Philadelphia’s Zachary Johns representing clients in civil and criminal antitrust matters, including issues of exclusive dealing, tying, and monopolization, among others.

The ‘incredibly responsive’ team at Paul, Weiss, Rifkind, Wharton & Garrison LLP excels in representing large airlines, blue-chip tech companies, and large private equity firms across the full spectrum of contentious antitrust issues. In particular, the group has notable strength in advising corporate clients in contentious merger challenges and large class actions. In Washington DC, Karen Dunn takes point on bet-the-company litigation, particularly matters in the intersection of antitrust and consumer law, for clients in the tech sector. Also in DC is Bill Isaacson, a veteran antitrust litigator with a strong track record acting for leading tech giants in large class actions, both on the defense and plaintiff side. Andrew Finch splits his time between the firm’s New York and Washington DC offices and has a broad antitrust practice with notable industry expertise in the aviation sector. Aidan Synnott, also in New York, co-chairs the antitrust group and handles merger clearances and challenges for public companies and private equity funds. Synnott works alongside Brette Tannenbaum  and Staci Yablon; Tannenbaum is the firm’s antitrust deputy chair and is the go-to individual for competitor-on-competitor litigation, while Yablon is highly recommended for her financial services industry expertise.

The ‘overall excellent‘ antitrust offering at White & Case LLP fields a team of ‘strategic, skilled litigators’ with a strong track record advising large global corporations, leading US universities, and public investment funds in the full range of high-profile antitrust litigation. Under the leadership of J. Mark Gidley, the team has recently secured several class action wins for clients in the pharma and tech industries; Kathryn Jordan Mims is another key name here. Christopher Curran takes point on cross-border disputes and litigated mergers, while New York’s Jack Pace is the key name for competitor-on-competitor disputes and pay-for-delay cases. Peter Carney, who also heads the firm’s global pharmaceuticals and healthcare group, has extensive experience representing both domestic and international corporations in investigations, patent-related antitrust litigation, and reverse-payment claims. The ‘consistently reliable‘ Jaclyn Philips and ‘true rockstar’ Kelly Newman, based in Boston, ably assists with contentious mandates in the pharma, energy, and metallurgy industries. Unless otherwise stated, all mentioned individuals are based in Washington DC.

Williams & Connolly LLP is noted for its ability to defend clients facing class actions and government enforcement actions, representing major clients in the tech and pharmaceutical industries in government-led and business-to-business suits. The practice is headed jointly by John Schmidtlein, who has experience representing both defendants and plaintiffs in suits alleging monopolization, bid rigging and drug pricing, and Jonathan Pitt, who is noted for his work on matters tied to, inter alia, no poach agreements, price fixing and so-called pay-for-delay claims. Benjamin Greenblum is the practice’s key contact for antitrust matters arising out of Hatch-Waxman disputes, representing a number of high profile clients in the food and pharmaceutical sectors, while Carl Metz maintains a practice that covers defense of monopolization and unfair trade practices claims. All lawyers mentioned are in Washington DC.

Acting for major blue-chip corporations in the tech industry, WilmerHale’s antitrust and competition team fields a strong bench of litigators with significant agency expertise that routinely defends leading companies and individuals in the full range of contentious antitrust mandates. Thomas Mueller heads the team and is a seasoned antitrust litigator with a focus on cartel matters; he works alongside FTC trial counsel Jennifer Milici, who focuses on high-stakes litigation in the antitrust space with an emphasis on regulatory issues. On the litigated merger challenge front, Dominic Vote is the name to note, while New York’s David Gringer takes point on cases tried under section 7 of the Clayton Act as well as claims under sections 1 and 2 of the Sherman Act. In Boston, Mark Ford handles cases concerning alleged monopolization, price fixing, and bid rigging; his practice also covers IP-related antitrust issues. The ‘excellent‘ Steven Cherry is another key name for class actions, while Perry Lange has a broad antitrust focus that spans merger clearance, investigations, and trials and appeals. Unless otherwise stated, all mentioned lawyers are based in Washington DC.

A&O Shearman offers a standout antitrust capability in the financial services sector, leveraging its transatlantic capabilities to advise domestic and international banks and financial institutions on high-stakes class actions concerning securities and financial trading markets, price-fixing allegations, and monopolization claims. David Higbee, in Washington DC, co-heads the firm’s global antitrust offering and leverages his agency experience from the Antitrust Division to represent clients in agency-facing civil litigation matters, including defending clients before the FTC and the DOJ. Senior partner Adam Hakki represents leading banks in trading market class actions from the firm’s New York office; the duo jointly oversees the practice. Litigator Todd Stenerson represents both plaintiffs and defendants from the automotive, retail, and healthcare sectors in multidistrict litigations; Stenerson also handles investigations and arbitrations. In Dallas, Rachel Mossman Zieminski takes point on merger challenges in the aviation sector. Following the 2024 combination of Shearman and Allen & Overy LLP, the team now also includes Elaine Johnston, based in New York, who has a broad practice covering the full range of contentious and non-contentious antitrust issues across a range of industries; notably, Johnston recently represented Merz Pharmaceuticals in a class action concerning generic patent settlements. She works alongside the Washington DC-based Noah Brumfield, who takes point on antitrust matters in the chemicals, life sciences, and tech industries; the latter is a recent area of increased activity for the team. Another key member of the team is Todd Fishman, in New York, an experienced litigator with significant expertise in cross-border matters; Fishman is the key contact for clients in the financial services industry.

Arnold & Porter takes on the spectrum of antitrust disputes, handling class actions concerning price fixing, monopolization and a variety of exclusionary conduct allegations for clients in the pharmaceuticals and publishing fields, among others. Heading the firm’s global antitrust group is Debbie Feinstein, who offers experience in liaising with and litigating against competition authorities including the FTC on behalf of industries including pharma, food and retail, while Jonathan Gleklen heads the US-based practice, specializing in the high-tech and network sectors and representing clients in civil antitrust litigation. Laura Shores counts a number of well-known pharma companies among her clients and maintains a practice that covers both civil and criminal antitrust litigation, including matters arising out of patent licensing agreements and price fixing. Anne Davis acts for clients in class actions, opt-out litigation and government investigations arising out of monopolization, price fixing and exclusive dealing allegations. All named lawyers are based in Washington DC.

Fielding a team of ‘responsive, aggressive, and very smart’ attorneys, Axinn Veltrop & Harkrider is well positioned to take on the gamut of antitrust defenses, including MDLs and treble-damage litigation arising out of price fixing and monopolization allegations, including standout work for Google, among others. Washington DC’s Michael Keeley leads the group, specializing in disputes that concern both antitrust and IP issues, such as patent jury cases, and is also sought after for representation in relation to monopolization. ‘Master strategist’ Rachel Adcox, also based in the capital, is adept at handling concurrent civil and criminal litigation, including treble-damage suits, while ‘stand-out trial lawyer’ Denise Plunkett is noted for her representation of payments and other financial services clients in antitrust litigation out of New York. Made partner in January 2024, Kail Jethmalani maintains a practice covering civil antitrust suits with defense of clients before the FTC and foreign competition regulators. DC-based Kenina Lee brings experience of FTC procedure relating to pharmaceutical sector mergers to the practice.

With a strong foothold in the food and agriculture industries, Mayer Brown represents leading poultry, beef, and turkey companies in several high-profile class actions alleging anti-competitive behavior, including price-fixing claims. The group has recently seen increased activity in cases relating to algorithmic pricing and information exchange, particularly in the real estate and mobile home industries. Britt Miller, in Chicago, co-heads the firm’s global antitrust practice alongside Washington DC-based duo William Stallings and Gail Levine. Miller has extensive experience leading antitrust class action cases across a broad range of industries, while Stallings handles consumer protection and competition cases. Also in Chicago, Andrew Marovitz focuses his practice on cases concerning price fixing, market allocation, and conspiracy claims; Daniel Storino is another name to note in this area. Richard Snyder joined the DC office from Freshfields Bruckhaus Deringer LLP in January 2023; Snyder is a key contact for litigated merger challenges and class actions in the financial services and publishing industries. Adam Hudes left the team in June 2023.

O'Melveny & Myers LLP has an active antitrust litigation practice with a strong track record securing victories for clients in bet-the-company cases, conspiracy cases, and reverse payment litigations. Ian Simmons and Ben Bradshaw jointly lead the antitrust team; Simmons has extensive experience as lead counsel in multi-district antitrust litigations across a range of sectors and also handles cartel matters and antitrust-related IP litigation. Bradshaw is a key contact for clients in the aviation, proteins, and consumer electronics sectors and routinely takes point on competitor-on-competitor litigation in the pharma space. Both are based in Washington DC. Also in DC, Sergei Zaslavsky handles bench and jury trials as well as Sherman Act class actions for clients from the tech, banking, and healthcare industries. Andrew Frackman, in New York, has a broad practice spanning anti-competitive business practices, merger litigation, and general antitrust litigation in the financial services and airline industries. Peter Herrick joined the team from Axinn Veltrop & Harkrider in February 2023 and takes point on merger litigation; Herrick is also based in New York. Katrina Robson left the firm in April 2023.

Highly regarded for its strength in tech and sports-related antitrust litigations, Winston & Strawn LLP's expertise spans class actions, multidistrict litigations, and the full range of civil litigation across the tech, food, fashion, and real estate industries. Jeffrey Kessler and Eva Cole co-head the global antitrust practice from the firm’s New York office. Kessler has a broad practice spanning antitrust, sports law, and antitrust-related intellectual property issues; he has significant experience representing international companies in civil and multidistrict litigations, and also takes point on antitrust cases in the sports sector. Cole has stand-out expertise in the electronics, sports, retail, and private equity industries, focusing on cartel investigations and follow-on class actions in these spaces. James Herbison, described by clients as ‘one of the brightest antitrust minds in the country’, leads the Illinois offering from Chicago and has a strong track record handling the full range of antitrust litigation, including price-fixing, merger enforcement, and patent issues. Herbison works alongside Michael Mayer, who focuses his practice on class actions and tech antitrust litigations, counting consumer electronics companies and manufacturers among his clients.

Highly regarded for its strong track record advising defendants in large class actions in the life sciences and manufacturing sectors, the antitrust and competition practice at Baker Botts L.L.P. has recently seen an increase in activity relating to algorithmic price-fixing cases in the real estate industry. John Taladay heads the practice and is a seasoned antitrust specialist with an emphasis on merger clearances, bid-rigging, price-fixing, market allocation, and unfair trade practices, particularly in the pharma sector. Paul Cuomo focuses his practice on multijurisdictional merger reviews and litigation, while James Kress takes point on competitor-on-competitor disputes and has a notable track record advising on class certification issues. Erik Koons regularly represents clients in bet-the-company litigations spanning the full range of antitrust issues with a particular focus on price-fixing, market allocation, and monopolization; Koons also co-chairs the firm’s antitrust consumer products sub-group. Christopher Wilson was promoted to partner in March 2023 and focuses on the intersection of IP and antitrust work for clients in the telecoms, manufacturing, healthcare, and pharma sectors. All mentioned individuals are based in Washington DC. Maureen Ohlhausen left the practice in January 2024.

With noted experience in coordinating wide-ranging civil antitrust defenses, Davis Polk & Wardwell LLP‘s New York-based team is sought after by financial services and media clients for representation in price fixing cases and civil disputes arising out of cartel allegations. Leading the practice is Arthur Burke, who splits time between New York and Northern California and advises clients on their obligations under the Hart-Scott-Rodino Act, in addition to acting for clients in antitrust disputes. In New York, Paul Mishkin and Sheila Adams handle both civil antitrust litigation and regulatory investigations for clients out of the financial services, pharmaceutical and entertainment industries.

Freshfields Bruckhaus Deringer LLP is well versed in handling antitrust suits brought against tech and food sector clients, while also handling investigations and merger reviews by the FTC and DOJ. Washington DC-based Eric Mahr heads the firm’s US antitrust practice and is requested by clients facing civil suits and regulatory challenges both domestically and further afield, particularly in relation to proceedings initiated by the European Commission. June 2023 saw a pair of arrivals strengthen the group, with former Winston & Strawn LLP attorney Heather Lamberg moving to the firm’s DC office and specializing in market allocation and monopolization claims, and Justina Sessions joining from Wilson Sonsini Goodrich & Rosati in Silicon Valley, with a practice centered on antitrust cases in the tech industry.

Fielding a strong bench with significant agency experience, the antitrust and competition practice at Morrison Foerster counts leading pharma companies, media entities, and prominent tech corporations among its impressive roster of clients. The group is particularly adept at handling class actions following cartel investigations, as well as litigated merger challenges and cases concerning market dominance claims. Alexander Okuliar and former Antitrust Division criminal enforcement chief Lisa Phelan jointly oversee the team from Washington DC; Okuliar is a key contact for competitor-on-competitor antitrust litigation. Other key individuals in Washington DC are David Cross, Megan Gerking, and Mary Kaiser. Cross has a broad antitrust practice that covers monopolization and price-fixing allegations, including algorithmic price-fixing; Kaiser is another name to note here. Additionally active in the algorithmic price-fixing space, Gerking, a former DOJ antitrust trial attorney, also takes point on litigated merger clearances. On the West Coast, San Francisco’s Bonnie Lau and Eliot Adelson have extensive experience advising tech sector clients on multidistrict litigations, government enforcement actions, and class actions.

Paul Hastings LLP fields a team of ‘excellent litigators‘ with notable expertise across all stages of class action litigation. Under the joint leadership of Washington DC-based duo Michael Murray and Ryan Phair, the group frequently acts for clients in the tech, consumer goods, and financial services industries. Murray, a former deputy assistant attorney general in the Antitrust Division, leverages his agency experience to represent clients in high-stakes horizontal and vertical merger challenges, as well as large monopolization cases. Phair represents corporate and individual clients in price-fixing cases, monopolization claims, and conspiracy matters, having joined the firm from Hunton Andrews Kurth LLP in July 2023 alongside former federal antitrust prosecutor Craig Lee and Carter Simpson, whose practice focuses on antitrust, data privacy, and cybersecurity matters. Also in Washington DC, Michael Wise handles Sherman Act litigation as well as civil class action claims.

With a deep bench comprised of ‘strategic thinkers,’ Simpson Thacher & Bartlett LLP advises a broad range of sectors, including, but not limited to food, chemicals and healthcare on their approaches to civil antitrust litigation and dealings with the FTC across issues such as monopolization, tying and price fixing. The practice is led by a five-person team, with New York’s Peter Guryan counting a number of prominent private equity houses among his clients, and both he and Washington DC’s Sara Razi represent clients in litigation against the DOJ and FTC, with DC-based John Terzaken handling civil litigation occurring as a result of regulatory proceedings. Lynn Neuner and Jonathan Youngwood co-chair the firm’s litigation practice out of New York, assisting with civil antitrust disputes. Washington DC-based Abram Ellis, described by a client as a ‘good strategist,’ is noted for his work defending class actions and antitrust disputes concerning financial instruments and the healthcare sector.

Counting leading global tech giants, publishers, and pharma corporations among its impressive roster of clients, Weil, Gotshal & Manges LLP excels across all stages of litigation, with a strong track record of securing pre-trial victories as well as defeating class certifications. Former FTC litigation director Steven Newborn, merger review and clearance expert Brianne Kucerik, former FTC assistant director Jeffrey Perry, and Michael Moiseyev, who focuses on cross-border mandates, jointly oversee the ‘excellent’ practice; all four are based in Washington DC. New York’s Eric Hochstadt focuses on class actions and a broad range of other civil antitrust litigation, with a notable emphasis on sports-related cases. The ‘deeply experienced’ Adam Hemlock , also in New York, takes point on cartel matters, amnesty proceedings, and consumer class actions in the electronics and pharma industries.

The antitrust and competition team at BakerHostetler handles both plaintiff and defendant-side cases for a broad range of industries, with notable expertise in the agriculture, insurance, automotive, and energy industries. Carl Hittinger heads up the practice and splits his time between the firm’s Pennsylvania and Washington DC offices; Hittinger has particular experience advising companies in major antitrust disputes with competitors.  Also in Philadelphia is Jeffry Duffy, a litigator with a broad practice concentrated on antitrust and unfair competition disputes. Litigated merger challenges are handled by Washington DC’s Marc Schildkraut, while John Fornaciari handles cartel investigations and follow-on litigation, and Danyll W. Foix is a key contact for class action defense. In Los Angeles, Bridget McCabe takes point on class actions and heads up the firm’s California antitrust offering.

Boies Schiller Flexner LLP regularly defends corporations and senior executives across a broad variety of sectors in both civil and criminal antitrust litigations. The firm has a particularly strong foothold in the aviation industry and has recently represented Delta Air Lines and its executives in several matters, including a significant class action concerning price fixing in relation to fares. Healthcare is another area of expertise for the group, which regularly represents healthcare providers in competitor-on-competitor antitrust cases. The practice is jointly overseen by Philip Korologos, in New York, and James Denvir, in Washington DC. Korologos takes point on antitrust cases in the aviation sector, while Denvir leverages his agency experience from the DOJ to advise on bet-the-company lawsuits across a diverse range of industries.

The ‘very diligent, knowledgeable, attentive, and easily accessible’ antitrust team at DLA Piper LLP (US) represents individual executives, insurance companies, and healthcare sector players in the full range of class actions and civil antitrust litigation. John Hamill now heads the practice from the Chicago office and excels in representing clients across the full spectrum of commercial litigation, including antitrust issues and unfair competition matters. The ‘outstanding and efficient’ David Hamilton joined the firm’s Baltimore office from Womble Bond Dickinson in February 2023; Hamilton has a broad practice spanning monopolization, price-fixing, and cartel litigation. Brian Boyle, in Philadelphia, represents corporate clients as plaintiffs and defendants in cartel, merger, and pricing conduct antitrust mandates, while Washington DC-based litigator David Bamberger is a key contact for class actions. The growing team saw its East Coast offering further expanded with the January 2024 arrivals of former FTC attorney Amanda Wait, investigations expert Vic Domen, and former federal prosecutor Carsten Reichel from Norton Rose Fulbright; all are based in Washington DC. Lisa Tenorio-Kutzkey left the firm in January 2024.

Antitrust audits and compliance are particular focal points for Eimer Stahl LLP. The team advises on the implementation of compliance programs and acts as crisis counsel on critical compliance matters. The practice’s antitrust expertise spans the full range of industries, from the agriculture to technology sectors. With a strong track record in federal and state courts and arbitration centers, Nathan Eimer leads the Chicago-based team. Practice co-head Vanessa Jacobsen regularly plays a lead role in cases on behalf of joint defense groups, as well as fielding extensive experience in criminal and civil antitrust investigations by the DOJ. Michael McCluggage boasts a diverse clientele that includes corporate clients, which he represents in antitrust litigation, federal False Claims Act cases and other lawsuits. Price-fixing class actions and MDLs are some of Daniel Birk's particular areas of expertise.

With a strong foothold in the healthcare and life sciences sectors, Hogan Lovells US LLP acts for leading healthcare providers, pharma companies, and healthcare insurers on the full range of antitrust mandates, with a particular emphasis on merger litigation and challenges; Justin Bernick is a key name here. Charles Loughlin, former FTC chief trial counsel, handles putative antitrust class actions and reverse payment cases, Tripp Monts has a broad practice spanning price-fixing cases, monopolization allegations, and market allocation issues in the automotive and healthcare sectors, while Benjamin Holt has particular expertise in cross-border and multidistrict litigation matters. Bernick, Loughlin, Monts, and Holt co-lead the practice from Washington DC. Kenneth Field, also in Washington DC,  joined the team from Jones Day in March 2023, further adding to the firm’s healthcare antitrust offering.

With a successful track record in antitrust civil litigation and class action cases across various industries, from the financial services to education sectors, King & Spalding LLP‘s extensive clientele includes HSBC, NatWest and DASF Corporation. Although primarily based in Washington DC, the antitrust practice also draws on expertise across Georgia, New York, Texas, Illinois and California, many of whom bring experience at antitrust enforcement agencies to the team. The team is led by Jeff Spigel, who advises senior management and their boards on merger filings and civil and criminal antitrust investigations and disputes. Chris Yook represents clients in government enforcement actions and civil litigation. The team demonstrates continued growth, with the addition of Sean Royall from Sidley Austin LLP in August 2023. Norman Armstrong left the firm in late 2023.

The ‘consistently excellent’ team at McDermott Will & Emery LLP leverages its strength across the full spectrum of antitrust issues to offer a strong litigation practice with notable strength advising on civil class actions and price-fixing allegations. Global practice co-head Raymond Jacobsen, in Washington DC, has a strong track record acting for clients in the defense industry. Katharine O’Connor, in Chicago, handles antitrust compliance and litigated merger work for clients in the healthcare, food, and manufacturing sectors; also in Chicago is Stephen Wu, who co-chairs the firm’s healthcare antitrust sub-group. Michelle Lowery splits her time between Los Angeles and Chicago and heads the firm’s West Coast antitrust offering. In New York, Nicole Castle is another key contact for healthcare antitrust work, working alongside seasoned antitrust expert Elai Katz, who joined the team from Cahill Gordon & Reindel LLP  in August 2023. Another new arrival is Ryan Tisch, who joined the Washington DC office from Crowell & Moring LLP in May 2023, strengthening the team’s merger clearance offering.

Counting trade associations, corporations, and individual executives from a broad range of industries among its clients, McGuireWoods LLP’s antitrust and competition team regularly handles disputes alleging price-fixing, no-poach agreements, and wage-fixing issues. Amy Manning, based in the firm’s Chicago office, now heads the team; Manning acts for individual executives and corporations in cases alleging no-poach agreements, as well as wage- and price-fixing claims, with particular industry expertise in the life sciences sector. Further key individuals in the Chicago team include Angelo Russo and Sarah Zielinski; Russo is also recommended for his expertise in defending corporations accused of no-poach conspiracies, while Zielinski takes point on cases concerning anticompetitive information exchanges and wage-fixing allegations. Brent Justus, in Richmond, has a particular focus on merger clearances and cartel defense.

Civil claims litigation, particularly in multi-district class action cases, is a key component of Norton Rose Fulbright US LLP’s antitrust practice. The team provides representation at both the state and federal level across the US to clients across a gamut of industries, from medical to telecoms to banking to energy, mining, and manufacturing. Splitting her time between New York and Washington DC, Robin Adelstein leads the team. Layne Kruse focuses his practice on antitrust and business litigation, based in Houston and DC, with a diverse clientele of both plaintiffs and defendants. In Houston, Darryl Anderson fields experience in monopolization and conspiracy claims, as well as national and international government investigations. Also based in Houston and DC, Eliot Turner has a strong background in no-poach and algorithmic price fixing claims, while Geraldine Young, in Houston, brings arbitration experience to the team. Michael Swartzendruber in Dallas and Mark Robertson in New York are other names to note.

Prominent in the agriculture and food sector, Proskauer Rose LLP fields extensive experience representing agricultural co-operatives in a variety of antitrust matters. The team fields knowledge of international antitrust regimes, advising multinational clients from various industries on merger review, class actions, litigation, investigations, and enforcements. Colin Kass co-heads the Washington DC-based team, with extensive experience before the FTC and the DOJ. Practice co-head Christopher Ondeck advises his impressive clientele, that includes industry groups and trade associations, on antitrust compliance and consumer protection matters. John Ingrassia advises investment firms and industry heavyweights on CFIUS, M&A, and JV-related antitrust matters. With a successful track record in price discrimination matters and group boycott claims, David Munkittrick represents clients in bench and jury trials from New York. Stephen Chuk is another name to note.

Boasting advisory, contentious and transactional capabilities, Reed Smith LLP offers merger control and FDI support, advice on antitrust investigations and representation in civil litigation and class actions. The team fields a strong background in antitrust and competition compliance, advising clients on the implementation of compliance programs. Michelle Mantine leads the team from Pittsburgh, while Michael Lowell leads from Washington DC. Daniel Booker, in Pittsburgh, fields extensive experience and a successful track record in an impressive list of class actions, arbitrations and lawsuits. Also in Pittsburgh, Christopher Brennan specialises in global cartel litigation and investigations, and advises a diverse roster of corporate clients on multi-district litigation, national class actions and internal investigations. Gregory Vose and Courtney Bedell Averbach, both based in Pittsburgh, are key members of the team.

Attracting client praise for its ‘tenacious litigation prowess,‘ Sheppard, Mullin, Richter & Hampton LLP’s antitrust litigation team handles international monopoly cases for large tech sector clients, as well as defending clients in antitrust merger matters and handling competitor-on-competitor disputes. Practice co-heads Leo Caseria and Ann O’Brien, praised by clients for their ‘unparalleled‘ subject matter expertise, oversee the team from the Washington DC office. Caseria has a strong record defending clients in cases involving claims of monopolization, price gouging, and conspiracy, with particular success at the early stages of litigation. O’Brien, who also leads the firm’s criminal antitrust and cartels sub-group, takes point on agency-facing litigation, leveraging her experience from working at the Antitrust Division. Michael Cohen left the firm in 2023.

Working closely with the firm’s M&A team, the antitrust and competition practice at Skadden, Arps, Slate, Meagher & Flom LLP stands out for its strength in advising on the contentious and non-contentious antitrust aspects of large mergers, particularly in the tech sector. Steven Sunshine, Tara Reinhart, and Karen Lent jointly lead the practice; Sunshine, in Washington DC, heads the firm’s global antitrust and competition group and advises clients on antitrust aspects of mergers and also handles contentious mandates. He works alongside co-head Reinhart, also in Washington DC, whose practice focuses on international cartel investigations and related litigation. Lent heads the New York antitrust offering and also co-heads the firm’s sports practice; she is the key contact for antitrust mandates in the sports industry,

With a strong foothold in the chemicals, agriculture, and heavy industry sectors, Vinson & Elkins LLP’s antitrust practice stands out for its strong track record advising its clients in large multidistrict litigations and class actions. Key names in the team include practice co-head Craig Seebald, in Washington DC, who also co-heads the firm’s litigation and regulatory offering, and antitrust co-heads Hill Wellford, a former Antitrust Division trial lawyer, and Jason Powers, based in Washington DC and Houston, respectively. Seebald’s broad practice focuses on defending multinational corporations in cartel and price-fixing investigations and subsequent follow-on litigation, while Powers has particular expertise in the energy and oil and gas industries. Washington DC’s Stephen Medlock is a key contact for multidistrict class actions alleging monopolization and has notable experience acting on both the plaintiff’s and defendant’s sides. In San Francisco, Dylan Ballard and Mike Scarborough handle Sherman and Clayton Act cases and competitor-on-competitor litigation, respectively.

Focusing on the high-tech and pharmaceutical sectors, Alston & Bird LLP represents clients in antitrust litigation, merger investigations and class actions. Teresa Bonder, in San Francisco, has extensive experience before the DOJ and the FTC, advising clients on both investigations and challenges. Valarie Williams ' international expertise is an asset to the team and sees her advise on antitrust regulations across multiple jurisdictions for multinational clients, also from San Francisco. Matthew Kent advises on private litigation and government investigations in the pharmaceutical sector, as well as boasting a successful track record in antitrust clearance for M&A. Parker Miller is an expert in anticompetitive conduct cases and antitrust compliance. Andrew Hatchett focuses his practice on the pharmaceutical and life sciences sectors, while Troy Stram represents clients in antitrust, RICO, commercial, and TCPA litigation. All individuals are based in Atlanta, unless otherwise stated.

With standout capabilities in antitrust litigation in the life sciences, fashion, and luxury goods space, Baker McKenzie LLP acts for household names on the full range of antitrust matters. The team is particularly adept at handling antitrust elements of large mergers. Global antitrust chair Mark Hamer leverages his agency experience from the Antitrust Division to take point on large class actions involving several defendants, while North American antitrust chair Creighton Macy is the go-to name for litigated merger challenges and investigations. At the associate level, former federal prosecutor Ashley Eickhof ably assists on price-fixing and no-poach class actions in the fashion and luxury goods industry. Unless otherwise stated, all mentioned individuals are based in Washington DC.

With notable strength in the pharma, agricultural, and chemical industries, Ballard Spahr LLP stands out for its particular expertise in monopolization and conspiracy litigations and class actions. The team is led by Leslie John, who also co-leads the firm’s false advertising litigation group; John represents clients in the pharma and healthcare industries on the full range of antitrust litigation, including before federal and state courts and antitrust agencies. Other key individuals include Jason Leckerman, who chairs the firm’s litigation department and assists private and public companies with the antitrust aspects of mergers, and Stephen Kastenberg, recommended for class actions. In New York, James Mitchell focuses on antitrust issues in the securities space, handling a broad range of criminal and civil litigation. Unless otherwise stated, all mentioned lawyers are based in Pennsylvania.

Standing out for its expertise in banking and finance-related antitrust litigation, Cahill Gordon & Reindel LLP regularly acts for major banks and financial services entities in civil class actions and before governmental agencies. Herb Washer and David Januszewski jointly head the practice; Washer recently acted for Credit Suisse in several class action litigations alleging conspiracies to manipulate foreign exchange rates and bonds, while Januszewski is the key contact for securities litigation matters. Also in the core team is Edward Moss, another key name for foreign exchange currency conspiracy cases. Elai Katz left the firm in August 2023.

Working in tandem with the firm’s white-collar defense and corporate teams, Cohen & Gresser LLP's antitrust practice has considerable government enforcement capabilities. The team has experience in courts of all levels, a ‘litigation powerhouse’ representing clients in both single litigant and class action suits, and antitrust and competition disputes. The technology sector is also a particular focal point for the practice. Melissa Maxman boasts a diverse roster of both national and international clients, advising on antitrust matters on a global scale. John Roberti brings experience in cartel class actions, as well as in antitrust litigation and investigations, to the team. Antitrust compliance is a key focus area for Ronald Wick, alongside his trade regulation practice. Alisa Lu‘s clientele encompasses companies receiving merger clearance and financial institutions. All attorneys mentioned are based in Washington DC.

Cooley LLP's antitrust and enforcement litigation practice advises high-profile clients, such as JetBlue and the National Association of Realtors. The team is prominent in agency investigations, advising clients in both civil and criminal proceedings. Dee Bansal’s practice focuses on the data, technology and media sectors, and she represents clients in antitrust litigation and civil and criminal investigations before the FTC and the DOJ. Based in Washington DC along with Bansel, Ethan Glass plays a lead role in an array of antitrust cases, including agency proceedings and merger review, with a particular focus on the technology and life sciences sectors. In San Francisco, Beatriz Mejia brings international expertise in government investigations to the team, along with experience in cartel investigations and monopolization claims.

Private equity firms are a key client group for Debevoise & Plimpton LLP‘s antitrust practice, and the team advises significant players in the market, such as Albertsons. The group has experience in negotiations with the FTC and the DOJ, particularly in relation to M&A. Michael Schaper leads the antitrust and competition team from New York, alongside Ted Hassi in Washington DC. Also based in New York, Erica Weisgerber regularly participates in class actions and antitrust and mass tort litigations. Leah Martin, in DC, has a strong background in obtaining merger clearances in transactions reviewed by antitrust agencies.

Specializing in bet-the-company cases, Kasowitz Benson Torres LLP regularly plays a leading role in antitrust litigation. The team is experienced in class actions and antitrust investigations spanning multiple jurisdictions. It advises significant players from a variety of sectors, including the pharmaceutical, media and automotive industries. Hector Torres fields a diverse clientele of defendants and plaintiffs, bringing extensive public-sector experience to the group. He heads the New York-based practice alongside Sheron Korpus, who takes the lead in cases for some of the team’s key clients, including Teva Pharmaceuticals. Seth Moskowitz is experienced acting in appellate courts, at both a federal and state level, while Seth Davis represents clients in investigations by enforcement agencies.

Ropes & Gray LLP fields a strong bench of ex-agency litigators and enforcers with strength across the full scope of contentious antitrust issues, including monopolization cases, information-sharing class actions, and litigated merger challenges. Mark Popofsky, in Washington DC, handles class actions and cartel cases before federal and state courts, with a particular sector focus on the tech and life sciences industries. Popofsky jointly leads the practice alongside Jane Willis, who divides her time between the firm’s Boston and New York offices and represents hospitals, healthcare providers, and healthcare systems in civil litigation and class actions alleging attempted monopolization and other anticompetitive behaviors.

Acting from both startups and large multinational companies in the healthcare and life sciences, food, and agriculture industries, Troutman Pepper frequently litigates in matters involving claims of anticompetitive conduct such as monopolization, price-fixing, and supply manipulation. Barbara Sicalides and Daniel Anziska jointly lead the practice; the ‘excellent‘ Sicalides, in Philadelphia, handles class actions and individual plaintiff actions, working alongside the New York-based Anziska. Also in Philadelphia is the ‘competent, credible, and trustworthy’ Michael Hartman, who has a strong track record defending clients in Sherman Act conspiracy cases, and Robin Sumner, a go-to name for clients in the healthcare and biopharma sectors.

Wilkinson Stekloff noted a recent surge in antitrust enforcement matters and the boutique is regularly called upon to defend clients in bet-the-company antitrust cases. The ‘strategic and practical’ team boasts an impressive roster of clients, including Microsoft, Cargill and the NFL. Beth Wilkinson brings extensive experience and a successful track record in state and federal courts to the team. Wilkinson heads the team alongside James Rosenthal and Rakesh Kilaru, who plays a lead role in class action and mass tort cases. The ‘highly strategic’ Kosta Stojilkovic regularly represents clients in governmental investigations. All attorneys mentioned are based in Washington DC.