The recently published 2023 edition of Chambers USA: America's Leading Lawyers for Business recognized numerous Wilson Sonsini Goodrich & Rosati practices and attorneys. This year, the firm was ranked in 35 geography-specific practice categories, while 79 attorneys were honored among the best in their fields.

The listings are the result of an extensive research process that includes analysis of submissions, reference feedback via interviews, client satisfaction indices, reputation in the market, peer knowledge, and other market sources. Chambers bases its analysis on a set of main factors and considerations, including technical legal ability, client service, depth of the team, commercial vision and business understanding, diligence, and other valued qualities.

Wilson Sonsini’s rankings are summarized below. For additional details, please see the results online.

Practice Area Rankings

Wilson Sonsini is ranked as a “Leading Firm” in the following categories and geographies:

Nationwide:

• Antitrust
• Antitrust: Cartel
• Capital Markets: Equity: Issuer Counsel
• Corporate/M&A: Highly Regarded
• International Trade: CFIUS Experts
• International Trade: Export Controls & Economic Sanctions
• Life Sciences
• Privacy & Data Security: The Elite
• Projects: Renewables & Alternative Energy
• Securities: Litigation
• Startups & Emerging Companies
• Technology

California:

• Antitrust
• Capital Markets: Debt & Equity
• Corporate/M&A
• Corporate/M&A: The Elite
• Employee Benefits & Executive Compensation
• Intellectual Property: Patent Litigation
• Intellectual Property: Patent Prosecution
• Intellectual Property: Trademark, Copyright & Trade Secrets
• Life Sciences
• Litigation: Appellate
• Litigation: Securities
• Tax
• Technology Transactions
• Venture Capital

Delaware:

• Chancery

District of Columbia:

• Antitrust

Massachusetts:

• Life Sciences

New York:

• Antitrust

Texas:

• Technology: Corporate & Commercial
• Corporate/M&A

Washington:

• Corporate/M&A
• Intellectual Property
• Litigation: General Commercial

Individual Attorney Rankings

In addition, the following attorneys are ranked as “Leading Individuals” in the 2023 Chambers USA guide:

• John Aguirre, Employee Benefits & Compensation (California: San Francisco, Silicon Valley & Surrounds)
• Josephine Aiello LeBeau, International Trade: Export Controls & Economic Sanctions (Nationwide)
• Steven Bochner, Capital Markets: Debt & Equity (California); Capital Markets: Debt & Equity: Western United States (Nationwide); Startups & Emerging Companies (Nationwide); and Venture Capital (California)
• Matthew Bresnahan, Intellectual Property: Patent Prosecution (California)
• William Chandler, Chancery (Delaware)
• Kenneth Clark, Life Sciences: Corporate/Commercial (California and Nationwide)
• Andrew Cordo, Chancery (Delaware)
• Susan Creighton, Antitrust (District of Columbia)
• Brian Dillavou, Technology: Corporate & Commercial (Texas: Austin & Surrounds)
• Ian Edvalson, Life Sciences: Corporate/Commercial (California)
• Jennifer Fang, Life Sciences (Massachusetts)
• Erin Fay, Bankruptcy/Restructuring (Delaware)
• Mark Fitzgerald, Corporate/M&A (Massachusetts)
• Morris Fodeman, Litigation: White-Collar Crime & Government Investigations (New York)
• Erik Franks, Capital Markets: Convertible Debt (Nationwide); Capital Markets: Debt & Equity (California); and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Beth George, Privacy & Data Security (Nationwide)
• Todd Glass, Projects: Renewables & Alternative Energy (Nationwide)
• Tait Graves, Intellectual Property: Trademark, Copyright & Trade Secrets (California)
• Joshua Gruenspecht, International Trade: CFIUS Experts (Nationwide)
• Caz Hashemi, Litigation: Securities (California)
• Stephen Heifetz, International Trade: CFIUS Experts (Nationwide)
• Aaron Hendelman, Intellectual Property (Washington)
• Katherine Henderson, Litigation Securities (California)
• Michael Hostetler, Intellectual Property: Patent Prosecution (California)
• Robert Ishii, Corporate/M&A (California: San Francisco, Silicon Valley & Surrounds)
• Jonathan Jacobson, Antitrust (New York)
• Tony Jeffries, Capital Markets: Debt & Equity (California) and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Alison Johnson, Corporate/Commercial (Idaho)
• Raj Judge, Venture Capital (California)
• Jeana Kim, Corporate/M&A (Washington)
• Martin Korman, Corporate/M&A (California: San Francisco, Silicon Valley & Surrounds)
• David Kramer, Intellectual Property: Trademark, Copyright & Trade Secrets (California)
• Sriram Krishnamurthy, Employee Benefits & Executive Compensation (New York)
• Katherine Ku, Corporate/M&A (California: Los Angeles & Surrounds)
• Luis Li, Litigation: White-Collar Crime & Government Investigations (California); Litigation: General Commercial (California)
• Nicki Locker, Litigation: Securities (California)
• Matthew Lyons, Corporate/M&A (Texas: Austin & Surrounds) and Technology: Corporate & Commercial (Texas: Austin & Surrounds)
• Katharine Martin, Capital Markets: Debt & Equity (California) and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Scott McCall, Employee Benefits & Executive Compensation (California: San Francisco, Silicon Valley & Surrounds)
• Maneesha Mithal, Privacy & Data Security (Nationwide)
• Peter Mostow, Projects: Renewables & Alternative Energy (Nationwide)
• Michael Murphy, Technology: Transactions (California)
• Michael Nordtvedt, Corporate/M&A (Washington)
• Vern Norviel, Life Sciences: IP/Patent Litigation (California); Intellectual Property: Patent Prosecution (California)
• Michael Occhiolini, Capital Markets: Convertible Debt (Nationwide); Capital Markets: Debt & Equity (California); and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Christopher Olsen, Privacy & Data Security (Nationwide)
• Kenneth O’Rourke, Antitrust: Cartel (Nationwide)
• Chul Pak, Antitrust (New York)
• Lydia Parnes, Privacy & Data Security (Nationwide)
• Rezwan Pavri, Capital Markets: Debt & Equity (California) and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Marc Porter, Corporate/M&A (Utah)
• Mark Rosman, Antitrust (District of Columbia) and Antitrust: Cartel (Nationwide)
• Fred Rowley, Jr., Litigation: Appellate (California)
• Ignacio Salceda, Litigation: Securities (California)
• Jeff Saper, Capital Markets: Debt & Equity (California) and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Patrick Schultheis, Corporate/M&A (Washington)
• Anne Seymour, International Trade: Export Controls & Economic Sanctions)
• Scott Sher, Antitrust (District of Columbia)
• Craig Sherman, Corporate/M&A (Washington) and Startups & Emerging Companies (Nationwide)
• Adam Shevell, Technology: Transactions (California)
• Amy Simmerman, Corporate/M&A (Delaware)
• John Slafsky, Intellectual Property: Trademark, Copyright & Trade Secrets (California)
• Brent Snyder, Antitrust: Cartel (Nationwide)
• Larry Sonsini, Capital Markets: Debt & Equity (California); Capital Markets: Debt & Equity: Western United States (Nationwide); Corporate/M&A (California: San Francisco, Silicon Valley & Surrounds); and Startups & Emerging Companies (Nationwide)
• Brad Sorrels, Chancery (Delaware)
• Allison Spinner, Capital Markets: Debt & Equity (California) and Capital Markets: Debt & Equity: Western United States (Nationwide)
• Lisa Stimmell, Capital Markets: Debt & Equity (California) and Capital Markets: Debt & Equity: Western United States (Nationwide)

• Dave Strong, Tax (Colorado)

• Robert Suffoletta, Corporate/M&A (Texas: Austin & Surrounds) and Technology: Corporate & Commercial (Texas: Austin & Surrounds)
• Yokum Taku, Startups & Emerging Companies (Nationwide) and Venture Capital (California)
• David Thomas, Employee Benefits & Executive Compensation (California: San Francisco, Silicon Valley & Surrounds)
• Marina Tsatalis, Labor and Employment (New York)
• Jeffrey VanHooreweghe, Antitrust (California)
• Wendy Waszmer, Antitrust (New York)
• Martin Waters, Corporate/M&A (California: San Diego)
• Gregory Watts, Litigation: General Commercial (Washington)
• Libby Weingarten, Privacy & Data Security (Nationwide)
• Mark Yohalem, Litigation: Appellate (California)
• Jonathan Zhu, Tax (California: Northern)
• Elise Zoli, Environment (Massachusetts)