Collin Vierra is a stakeholder at Eimer Stahl in the firm’s San Jose office. His practice focuses on complex trial and appellate litigation including in the areas of products liability, commercial disputes, environmental law, antitrust, and class action defense. 

Collin has experience in both state and federal courts and with all aspects of litigation. Collin also has experience defending companies in multi-district litigation matters and multi-jurisdiction government investigations, including managing complex strategy and discovery-related issues.

An avid writer, Collin’s legal commentary has been featured in publications such as Law360.

Collin holds a J.D. from Stanford Law School and an M.A. in Economics from Stanford University where he was a Gregory Terrill Cox Fellow in the John M. Olin Program in Law and Economics.  He also holds a B.S. in Engineering from the Massachusetts Institute of Technology where he was a member of the Pi Tau Sigma Mechanical Engineering Honors Society, a member of MIT’s selective Concourse program, and an engineering apprentice in the Pappalardo Laboratory.


Case Experience

Climate Change Litigation (1st Cir.; 2nd Cir.; 4th Cir.; 9th Cir.; U.S. Sup. Ct.) – Defending major petroleum refiner, transporter, and marketer in a series of government actions seeking to hold certain oil and gas producers liable for the alleged effects of climate change.

In re JUUL Labs, Inc., Marketing, Sales Practices, and Products Liability Litigation (MDL, JCCP) – Defended world’s leading e-cigarette manufacturer in hundreds of putative class actions and related investigations alleging product defects and violations of consumer protection laws.

Slack Technologies, Inc. Securities, Shareholder, and Derivative Litigation (Cal. Super. Ct.,; Del. Ch.; D. Del.; N.D. Cal.; 9th Cir.) – Defended leading technology company in first-of-its-kind litigation relating to its direct listing on the New York Stock Exchange.

In re Crop Inputs Antitrust Litigation (MDL) – Defending Canadian agricultural cooperative in multi-district litigation alleging conspiracy to keep certain crop inputs electronic platforms out of the U.S. market.

In re Rail Freight Fuel Surcharge Antitrust Litigation (MDL) – Representing various companies in antitrust action to recover for overpayments made as a result of a price-fixing conspiracy.

County of Dane v. Public Service Commission of Wisconsin (Wis. Cir. Ct.; Wis. Ct. App.; Wis. Sup. Ct.) – Representing former public official who received non-party subpoenas for testimony as part of ongoing litigation involving constitutional standard for adjudicator bias.

Confidential Arbitration (ICC) – Representing a multinational chemical corporation in multimillion-dollar series of arbitrations regarding contract disputes at chemical production sites.

Riverbed Technologies, Inc. v. Scottish Equity Partners (Cal. Super. Ct.; Cal. Ct. App.) – Represented information technology company in action to recover restitution for class action judgment successfully overturned on appeal., Inc. v. Palm Beach County (S.D. Fla.) – Represented vacation rental marketplace in a series of challenges to local and state ordinances regulating short-term property rentals.

Confidential Criminal Litigation (E.D. Cal.) – Defended leading green energy company in environmental litigation with U.S. Department of Justice.


J.D., Stanford Law School 

  • Leader of the Immigration and Naturalization Pro Bono Projects

M.A., Stanford University

  • Gregory Terrill Cox Fellow in the John M. Olin Program in Law and Economics

B.S., Massachusetts Institute of Technology

  • Pi Tau Sigma Mechanical Engineering Honor Society

  • California
  • U.S. District Court for the Northern District of California
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