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Fred A. Rowley, Jr.
Partner
Los Angeles
Fred A. Rowley, Jr. is a litigation partner based in the Los Angeles and Palo Alto offices of Wilson Sonsini Goodrich & Rosati. He handles appeals and complex litigation, and serves as co-chair of the firm’s nationwide Supreme Court and appellate practice.
  • Litigation
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Steffen N. Johnson
Partner
Washington, D.C.

Steffen Johnson is an experienced appellate practitioner who co-chairs the firm's national Supreme Court and Appellate practice.

  • Litigation
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Michael W. McConnell
Senior Of Counsel
Palo Alto
Professor McConnell represents clients in federal appellate litigation.
  • Litigation
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Mark R. Yohalem
Partner
Los Angeles
Mark Yohalem is co-chair of Wilson Sonsini’s complex litigation practice and a partner in the firm’s Los Angeles office. He has deep trial and appellate experience, handling complex litigation at every level in state and federal courts across the country.
  • Litigation
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Brian M. Willen
Partner
New York
Brian represents companies facing challenging disputes involving novel issues of law. 
  • Litigation
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Lauren Gallo White
Partner
San Francisco
Lauren represents internet and digital media companies in complex, high-stakes litigation related to online speech, privacy, and intellectual property.
  • Litigation
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Matthew A. Argenti
Partner
Palo Alto
Matt is an experienced patent litigatior with an focus on post-grant review proceedings before the PTAB.
  • Litigation
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Deno Himonas
Partner
Salt Lake City
Justice Constandinos "Deno" Himonas is a partner in the Salt Lake City office of Wilson Sonsini Goodrich & Rosati, where he advises companies on complex governance and regulatory issues.
  • Litigation
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John Karin
Partner
New York

John is a partner with experience managing all stages of large, bet-the-company litigation across the United States and abroad.

  • Litigation
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Samantha Alexandria-Booth Machock
Partner
San Diego
Samantha Machock is a partner in the San Diego office of Wilson Sonsini Goodrich & Rosati, where she is a member of the internet strategy and litigation group. Samantha’s practice focuses on representing technology and healthcare companies in complex, high-stakes consumer class and mass actions, particularly those involving cutting-edge consumer protection, false advertising, privacy, and cybersecurity-related claims. She has secured victories for her clients on a wide range of dispositive motions and class action issues: Recent victories include dismissal of claims against a generative AI service for allegedly misleading users, dismissal of a putative TCPA class action, and dismissal of claims seeking to create novel privacy rights for drivers under California’s Unfair Competition Law. Samantha is currently lead counsel for YouTube and Google in hundreds of cases alleging youth addiction and other harms as a result of YouTube’s design. 
  • Litigation
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Jad Mills
Partner
Seattle
Jad A. Mills is a partner in the Seattle office of Wilson Sonsini Goodrich & Rosati, where his practice focuses on proceedings before the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office under the America Invents Act and related federal court proceedings.
  • Litigation
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Melissa Mills
Partner
Los Angeles
Melissa Mills is co-chair of Wilson Sonsini Goodrich & Rosati’s Complex Litigation practice and a partner in the firm’s Los Angeles and Washington, D.C., offices. An accomplished trial lawyer, she has tried dozens of cases to verdict across a wide spectrum of legal areas. 
  • Litigation
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Maureen Ohlhausen
Partner
Washington, D.C.
Maureen Ohlhausen co-chairs Wilson Sonsini Goodrich & Rosati's antitrust and competition practice. A former acting chairman of the Federal Trade Commission (FTC), and the only FTC commissioner to receive the Robert Pitofsky Lifetime Achievement Award, she advises clients on complex antitrust and consumer protection matters. Sought after for her depth of experience on antitrust and FTC-related issues, Maureen is known for her relationships with officials in the U.S. and abroad.
  • Antitrust and Competition
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Taylor M. Owings
Partner
New York
Taylor M. Owings is a partner in the New York office of Wilson Sonsini Goodrich & Rosati, where she represents clients in civil merger and non-merger matters both before federal and state government agencies and in private litigation. She also counsels clients on the application of antitrust law to their business operations, with an emphasis on issues arising in technology-focused industries.
  • Antitrust and Competition
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John Pearce
Partner
Salt Lake City
John Pearce is a partner in the Salt Lake City office of Wilson Sonsini Goodrich & Rosati, where his practice focuses on complex commercial litigation, appellate advocacy, and strategic counseling for clients facing high-stakes disputes.
  • Litigation
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Michael T. Rosato
Partner
Seattle
Michael leads the firm’s practice involving contested proceedings at the USPTO and has extensive experience representing clients before the Patent Trial and Appeal Board.
  • Litigation
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Susan Creighton
Partner Emeritus
Susan Creighton retired as a partner from Wilson Sonsini Goodrich & Rosati in 2024. Susan’s practice focused on merger review, government conduct investigations, and antitrust litigation and counseling. Some of her representative matters include serving as co-lead outside counsel for Google in the U.S. Antitrust Division’s conduct case; representing Qualcomm in advocacy before the FTC; representing Netflix in connection with the Justice Department's investigation of the proposed Comcast/TWC merger; and representing Deutsche Telekom in connection with T-Mobile's successful merger with Sprint Corporation.
  • Antitrust and Competition
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Jonathan M. Jacobson
Partner Emeritus
Jonathan’s practice focuses on antitrust litigation, including investigations, trials, and appellate matters.
  • Antitrust and Competition
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Matthew Donohue
Of Counsel
Los Angeles
Matt Donohue is a trial and appellate attorney in the Los Angeles office of Wilson Sonsini Goodrich & Rosati who represents plaintiffs and defendants in high-stakes disputes. He has experience litigating cases at all stages, including taking and defending depositions, writing dispositive motions, and managing all aspects of discovery, with a particular emphasis on appellate advocacy.
  • Litigation
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Paul Harold
Of Counsel
Washington, D.C.
Paul Harold is Of Counsel in Wilson Sonsini Goodrich & Rosati’s Washington, D.C., office and a member of the firm’s appellate practice. Paul provides guidance on cutting-edge strategies and novel theories of liability. He focuses on drafting persuasive briefs for high-stakes motions and appeals. He has briefed appeals in federal and state appellate courts, as well as petitions seeking and opposing discretionary review in federal and state appellate courts. Paul regularly represents clients in petitioning for and opposing certiorari to the U.S. Supreme Court.
  • Litigation
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John B. Kenney
Of Counsel
Washington, D.C.
John Kenney is Of Counsel in Wilson Sonsini Goodrich & Rosati’s Washington, D.C., office and a member of the firm’s appellate practice.
  • Litigation
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