Antitrust lawyers

Daniel E. Shulak

Senior Associate

Hogan Lovells US LLP

Daniel G. Swanson

Daniel G. Swanson is a partner in Gibson, Dunn & Crutcher LLP, with offices in Los Angeles and Brussels. Mr. Swanson co-chaired Gibson Dunn’s Antitrust and Competition Practice Group for 25 years. His practice focuses on antitrust and competition law, including trial and appellate litigation, class actions, grand jury and civil investigations, merger review, regulatory and competition policy matters, and antitrust counseling.

Gibson, Dunn & Crutcher LLP

Daniel Hemli

Daniel Hemli regularly advises clients on complex antitrust issues relating to mergers, acquisitions and joint ventures and advocates before federal, state and foreign antitrust authorities. He has experience representing both buyers and sellers in connection with investigations of numerous national and multinational acquisitions and joint venture transactions across a broad range of industries, including oil and gas, electric power, chemicals, commercial and industrial equipment, waste services, construction materials, consumer goods, healthcare, technology and financial services. He has advised on transactions in a variety of contexts, including negotiated deals, hostile takeovers and distressed situations. Dan also counsels clients on a broad range of antitrust matters arising out of their day-to-day operations and assists clients in designing and implementing antitrust compliance programs. He prides himself on having a thorough understanding of his clients' business operations and objectives and providing very practical and business-focused advice.

Bracewell LLP

Daniel L Wellington

Norton Rose Fulbright

Daniel Laytin

Dan Laytin is a litigation partner in Kirkland’s Chicago office. His practice is principally concentrated in the areas of antitrust and other complex litigation. Dan is consistently recognized as a leading antitrust practitioner by Chambers (2006–2025), The Legal 500 U.S. (2016–2024), Benchmark Litigation (2019–2025), and The Best Lawyers in America, U.S. News and World Report, Best Lawyers® (2013–2025). In 2018, Dan was named one of The National Law Journal’s “Mergers & Acquisitions and Antitrust Trailblazers.” He was also named as one of only five Rising Stars in the area of Antitrust by Law360 in 2013 for his significant accomplishments as an attorney under the age of 40.

Kirkland & Ellis LLP

Daniel Nelson

Daniel W. Nelson practices in the Litigation Department as co-chair of the Environmental Litigation and Mass Tort Practice Group, and he is a member of the Class Action and Complex Litigation, Antitrust and Trade Regulation, and Appellate and Constitutional Law Practice Groups. Dan has a national complex litigation practice. He has served as the lead defense counsel for clients in the courts of more than 30 states, and he has defended more than 200 class action lawsuits, including as lead trial counsel in securing a defense verdict in a certified class action jury trial. He has represented clients at the trial and appellate levels in cases that span a wide range of areas, with a particular focus on environmental and mass tort litigation, complex business litigation, antitrust litigation, and class action litigation.

Gibson, Dunn & Crutcher LLP

Daniel Oakes

Partner

Axinn Veltrop & Harkrider

Daniel Pino

Partner

Pino Elizalde Abogados

Daniel Robalino

Partner

Robalino

Daniel Rockey

Partner - Litigation and Investigations Co-Leader, Data Privacy, Telecommunications & Collections

Bryan Cave Leighton Paisner

Daniel Stefany

Counsel

Hunton Andrews Kurth LLP

Daniel Storino

Partner

Mayer Brown

Daniel Wall

Daniel M. Wall is globally recognized as one of the leading antitrust lawyers in the United States, with a practice that encompasses complex antitrust litigation, government conduct investigations, merger reviews and counseling. His specialties are merger litigation, single-firm conduct litigation (e.g., monopolization actions) and the application of the antitrust laws to high technology industries.

Latham & Watkins

Daniel Zach

Daniel Zach is an antitrust and competition partner in the New York office of Kirkland & Ellis LLP. He is a former Assistant Director of the Federal Trade Commission (FTC) with extensive experience handling high‑profile and cutting‑edge merger investigations and litigations. Dan focuses his practice on providing comprehensive antitrust advice and counseling to help clients navigate the evolving antitrust regulatory environment, including advising on antitrust regulatory reviews of proposed mergers and litigating court challenges filed by U.S. antitrust enforcers. Over the course of his career, Dan has played a key role in numerous trials, serving as the first‑chair litigator in important merger cases in federal and administrative courts. He has extensive courtroom experience and has successfully developed and implemented strategies to win cases involving difficult antitrust issues, including innovation competition, bundling, urban hospital competition, high‑tech products, “fix‑it‑first” strategies and failing firm defenses. Dan has handled matters involving complex antitrust issues that resulted in FTC consent orders. His experience extends to working with foreign antitrust regulators, including those in the European Union (EU), as well as state antitrust enforcers. As Assistant Director of the FTC’s Mergers I Division, Dan oversaw the review of mergers in industries including pharmaceuticals, life sciences, medical devices, defense and technology, and led major litigation cases. Among other major matters, Dan brought the landmark Illumina/Grail case that resulted in the first successful court challenge of a vertical merger in several decades. Dan also engaged with Commissioners, Bureau of Competition and Bureau of Economics leadership, Congress, foreign and domestic antitrust enforcers and others on important issues related to the division’s work. From 2012 to 2020, Dan served as the Deputy Assistant Director of the Mergers I Division. In that role, he supervised merger reviews, related enforcement actions, and led litigation matters. Dan led groundbreaking cases involving monopolist acquisitions of nascent competitors, and he litigated the first potential competition case in more than 30 years. He also represented the division in a range of initiatives, including developing vertical merger guidelines, creating agency best practices for investigations and litigations, and presenting to other U.S. and foreign antitrust authorities and the public on various antitrust subject matters. From 2006 to 2012, Dan served as Counsel to the Director of the FTC’s Bureau of Competition and a staff attorney in the Mergers III Division leading investigations in the energy industry. In private practice, Dan has handled merger investigations involving Second Requests issued by U.S. antitrust agencies and represented clients facing FTC and Department of Justice (DOJ) investigations into various non-merger competition issues. He has also played leading roles defeating recent merger challenges brought by the FTC and DOJ.

Kirkland & Ellis LLP

Daniela Fonseca Puggina

Daniela serves as a trusted legal advisor to public and private multinational corporations, supporting their entry into new markets with emphasis in the Americas, assessment and mitigation of risks, cross border internal investigations, resolution of multijurisdictional regulatory enforcement matters and complex cross-border disputes, regulatory registrations, acquisition and surrender of licenses, joint ventures, business acquisitions, antitrust filings, spin off, and restructure of global operations. Daniela offers notable expertise and is a speaker on matters of relevance to the highly regulated financial services sector. She also provides support to companies in diverse industries including aviation, entertainment, technology, energy, and retail. She serves as the Chair of Baker McKenzie’s BakerWomen initiative for the Miami office, which is tasked with driving forward the Firm’s inclusion and diversity strategy. Daniela was named among the Top 50 Women Leaders in Law of 2022 by Women We Admire which recognizes the trailblazers who are being celebrated for their excellence in and commitment to the legal sector. "As minorities in their field, this group of women work relentlessly to make strides and are inspiring the next generation of women lawyers." Daniela has been recognized by Chambers where clients noted that: "She is very quick in analyzing problems and providing answers." "She is an excellent litigator who is determined, creative and always has time for her clients." She was also the exclusive recipient of the 2022 Client Choice Banking Award for USA by Lexology, where clients expressed that: "Daniela has a great level of expertise in the banking areas of the law and was detailed-oriented", "experienced and clever practitioner" and "has a business-minded approach and has a wide-ranging experience to provide great solutions". Further, "provides very fast feedback that is practical, raises questions but focuses quickly on the key issue", "has the ability of making things move forward through the good solutions/compromises she provides", and "[i]f you need sensible advice, then Daniela is always there to provide it."

Baker McKenzie

Daniela Seeliger

Linklaters

Danilo Romero

Partner

Holland & Knight

Darci Madden

Partner - Litigation and Investigations

Bryan Cave Leighton Paisner

David B. Adler

Quinn Emanuel Urquhart & Sullivan, LLP

David Bamberger

Senior Counsel

DLA Piper LLP (US)

David Boies

Chairman

Boies Schiller Flexner LLP

David Brenneman

David is an associate in Morgan Lewis's antitrust and competition team, he represents clients primarily in mergers, acquisitions, joint ventures, and civil antitrust litigation. In the merger process, David works on premerger notification under the Hart-Scott-Rodino Act, international merger control, merger investigations, second requests, and compliance with consent orders. David represents pharmaceutical, chemical, and financial services clients before the Federal Trade Commission and US Department of Justice, and he coordinates filings for multimillion- and multibillion-dollar transactions worldwide. For more information, view David's biography at www.morganlewis.com/bios/dbrenneman

Morgan, Lewis & Bockius, LLP

David Brenneman

David Brenneman serves as a key strategist for leading companies and investors, advising them on the antitrust aspects of mergers and acquisitions, joint ventures, and other strategic transactions. David draws on more than 15 years of experience defending major transactions before US and international competition law authorities. He routinely advises clients through their highest-stakes antitrust matters, including: Global deal clearance strategy Second requests Premerger conduct counseling Clayton Act Section 8 investigations Competition investigations brought by enforcers David advises corporations and global asset managers across a range of heavily regulated industries, from technology and communications to life sciences and financial services. He coordinates winning global strategies for clients facing deal review proceedings in multiple jurisdictions, including before the US Department of Justice (DOJ) Antitrust Division, the Federal Trade Commission (FTC), and the European Commission. David also frequently writes on recent developments in competition law, and regularly provides antitrust counseling to trade associations, standard setting organizations, and other consortiums of industry participants.

Latham & Watkins

David Cross

Partner

Goodwin