Foster C. Johnson is a partner at Ahmad, Zavitsanos, & Mensing, PLLC, and the head of the firm’s class action practice group. Mr. Johnson is one of the leading privacy attorneys in the United States and has litigated dozens of class actions as lead or co-lead counsel. He has extensive experience on both sides of class action cases, having successfully defended multiple class actions before assuming leadership of AZA’s plaintiff-focused class action group. His current work includes privacy litigation arising from website tracking technologies, mobile device data sharing software, and AI chat platforms.
Mr. Johnson has won millions of dollars for clients, including a $41.6 million jury verdict against Lloyd’s of London and numerous multi-million-dollar settlements achieved for class members. Mr. Johnson began his career as a trial lawyer, focusing on complex civil litigation. During the first decade of his career, he represented Fortune 100 companies in a variety of areas, including contract disputes; intellectual property and trade secret disputes; oil and gas matters; and non-compete claims. He has also handled numerous appeals in state and federal courts, including the United States Courts of Appeals for the 3rd, 5th, 7th, and D.C. Circuits, the Supreme Courts of Texas and California, numerous intermediate state courts of appeals, and the Judicial Panel on Multidistrict Litigation.
Mr. Johnson was selected to the 2025 and 2026 Best Lawyer lists for his expertise in commercial litigation, and he was selected to the Texas Rising Stars list in 2018-2021 for his excellence in business litigation.
Mr. Johnson is a graduate of Stanford Law School, where he served on both the Stanford Law and Policy Review and the Stanford Technology Law Review. After law school, he served as a law clerk to the Honorable Priscilla Owen of the United States Court of Appeals for the 5th Circuit. He is the author of Judicial Magic: the Use of Dicta as Equitable Remedy, published in The University of San Francisco Law Review in 2012. Prior to law school, Mr. Johnson was a professional musician in the San Francisco Bay Area.
Outside the office, Mr. Johnson enjoys playing guitar, cheering for the Houston Rockets, and spending time with his family.
Foster C. Johnson is a partner at Ahmad, Zavitsanos, & Mensing, PLLC, and the head of the firm’s class action practice group. Mr. Johnson is one of the leading privacy attorneys in the United States and has litigated dozens of class actions as lead or co-lead counsel. He has extensive experience on both sides of class action cases, having successfully defended multiple class actions before assuming leadership of AZA’s plaintiff-focused class action group. His current work includes privacy litigation arising from website tracking technologies, mobile device data sharing software, and AI chat platforms.
Mr. Johnson has won millions of dollars for clients, including a $41.6 million jury verdict against Lloyd’s of London and numerous multi-million-dollar settlements achieved for class members. Mr. Johnson began his career as a trial lawyer, focusing on complex civil litigation. During the first decade of his career, he represented Fortune 100 companies in a variety of areas, including contract disputes; intellectual property and trade secret disputes; oil and gas matters; and non-compete claims. He has also handled numerous appeals in state and federal courts, including the United States Courts of Appeals for the 3rd, 5th, 7th, and D.C. Circuits, the Supreme Courts of Texas and California, numerous intermediate state courts of appeals, and the Judicial Panel on Multidistrict Litigation.
Mr. Johnson was selected to the 2025 and 2026 Best Lawyer lists for his expertise in commercial litigation, and he was selected to the Texas Rising Stars list in 2018-2021 for his excellence in business litigation.
Mr. Johnson is a graduate of Stanford Law School, where he served on both the Stanford Law and Policy Review and the Stanford Technology Law Review. After law school, he served as a law clerk to the Honorable Priscilla Owen of the United States Court of Appeals for the 5th Circuit. He is the author of Judicial Magic: the Use of Dicta as Equitable Remedy, published in The University of San Francisco Law Review in 2012. Prior to law school, Mr. Johnson was a professional musician in the San Francisco Bay Area.
Outside the office, Mr. Johnson enjoys playing guitar, cheering for the Houston Rockets, and spending time with his family.
REPRESENTATIVE ENGAGEMENTS
- Doe v. SSM Healthcare Corporation (MO). Secured a multi-million-dollar settlement for class members in a case alleging privacy violations arising from the use of pixel tracking technologies.
- In Re The Christ Hospital Pixel Litigation (OH). Secured a multi-million-dollar settlement for class members in a case alleging privacy violations from the use of pixel tracking technologies.
- Horton v. Willis-Knighton Medical Center (LA). Secured a multi-million-dollar settlement on behalf of class members in a case alleging improper disclosures of HIPAA-protected health information.
- Obtained a $41.6 million jury verdict against Lloyd’s of London after the insurer refused to pay for hurricane damage to an offshore oil rig.
- Won dismissal of a multi-million-dollar employment class action in the Federal District of New Jersey.
- Won dismissal of a multi-million-dollar employment claim in the Northern District of California.
- Obtained multi-million-dollar settlement for plaintiff in construction defect suit.
- Secured walk-away settlement for defendant in $20 million environmental coverage dispute.
- Drafted winning appeal in a $16 million arbitration dispute.
- Drafted winning appeal in $10 million oil lease dispute.
EDUCATION
- Stanford Law School, J.D.
- Stanford Law and Policy Review, Features Editor
- Stanford Law and Technology Review, Executive Notes Editor
- Kirkwood Moot Court Board, Vice President
- Stanford University, M.A.
- Stanford University, B.A., with honors
BAR ADMISSIONS
- Texas 2011
- California 2013
- U.S. Court of Appeals for the Federal Circuit
- U.S. Court of Appeals for the Third Circuit
- U.S. Court of Appeals for the Fifth Circuit
- U.S. Court of Appeals for the District of Columbia Circuit
- U.S. District Court for the Southern District of Texas
- U.S. District Court for the Northern District of Texas
- U.S. District Court for the Eastern District of Texas
- U.S. District Court for the Northern District of California
- U.S. District Court for the Central District of California
- U.S. District Court for the Eastern District of California
LEGAL PUBLICATIONS AND CLE PRESENTATIONS
- “Financial Damages Calculations and Valuations in US Litigation: 2019 Perspective” webinar, Knowledge Group CLE, May 2019
- “Non-Compete Agreements: Understanding Trial Techniques and Litigation Strategies” webinar, Knowledge Group CLE, February 2018
- Judicial Magic: the Use of Dicta as Equitable Remedy, 46 U.S.F. L. REV. 883 (2012)
HONORS AND AWARDS
- 2018-2021 Texas Rising Star honors for business litigation, a list compiled by Texas Super Lawyers, a Thomson Reuters business
- 2025-2026 Best Lawyers
IN THE NEWS
- Perplexity AI Hands User Info To Google And Meta, Suit Says
- AZA Wins Class Action Certification Victory Against Hospital System Sharing Patient Information
- 26 AZA Attorneys Honored as 2026 Best Lawyers and Ones to Watch
- More than half of AZA’s attorneys honored as Best Lawyers and Ones to Watch
- AZA Names Five New Partners for 2023
- AZA’s Rocker-Lawyer Foster Johnson Featured in Texas Lawbook
- AZA Prevails for Apache Corp. at the Supreme Court of Texas
- Eleven AZA Lawyers Make the 2021 Texas Rising Stars List
- Nine AZA Lawyers Earn 2020 Texas Rising Stars Accolades
- Ten AZA Lawyers Earn 2019 Texas Rising Stars Accolades
- AZA Scores One of the Nation’s Top 100 Verdicts of 2017
- Fourteen AZA Lawyers Earn 2018 Texas Rising Stars Accolades
- Prime Natural Resources Wins $41.6 Million in Wellsure Insurance Dispute
- ZKey Sues Facebook in California
- 9 Reasons We Are Even Stronger
- Doe v. SSM Healthcare Corporation (MO). Secured a multi-million-dollar settlement for class members in a case alleging privacy violations arising from the use of pixel tracking technologies.
- In Re The Christ Hospital Pixel Litigation (OH). Secured a multi-million-dollar settlement for class members in a case alleging privacy violations from the use of pixel tracking technologies.
- Horton v. Willis-Knighton Medical Center (LA). Secured a multi-million-dollar settlement on behalf of class members in a case alleging improper disclosures of HIPAA-protected health information.
- Obtained a $41.6 million jury verdict against Lloyd’s of London after the insurer refused to pay for hurricane damage to an offshore oil rig.
- Won dismissal of a multi-million-dollar employment class action in the Federal District of New Jersey.
- Won dismissal of a multi-million-dollar employment claim in the Northern District of California.
- Obtained multi-million-dollar settlement for plaintiff in construction defect suit.
- Secured walk-away settlement for defendant in $20 million environmental coverage dispute.
- Drafted winning appeal in a $16 million arbitration dispute.
- Drafted winning appeal in $10 million oil lease dispute.
- Stanford Law School, J.D.
- Stanford Law and Policy Review, Features Editor
- Stanford Law and Technology Review, Executive Notes Editor
- Kirkwood Moot Court Board, Vice President
- Stanford University, M.A.
- Stanford University, B.A., with honors
- Texas 2011
- California 2013
- U.S. Court of Appeals for the Federal Circuit
- U.S. Court of Appeals for the Third Circuit
- U.S. Court of Appeals for the Fifth Circuit
- U.S. Court of Appeals for the District of Columbia Circuit
- U.S. District Court for the Southern District of Texas
- U.S. District Court for the Northern District of Texas
- U.S. District Court for the Eastern District of Texas
- U.S. District Court for the Northern District of California
- U.S. District Court for the Central District of California
- U.S. District Court for the Eastern District of California
- “Financial Damages Calculations and Valuations in US Litigation: 2019 Perspective” webinar, Knowledge Group CLE, May 2019
- “Non-Compete Agreements: Understanding Trial Techniques and Litigation Strategies” webinar, Knowledge Group CLE, February 2018
- Judicial Magic: the Use of Dicta as Equitable Remedy, 46 U.S.F. L. REV. 883 (2012)
- 2018-2021 Texas Rising Star honors for business litigation, a list compiled by Texas Super Lawyers, a Thomson Reuters business
- 2025-2026 Best Lawyers
- Perplexity AI Hands User Info To Google And Meta, Suit Says
- AZA Wins Class Action Certification Victory Against Hospital System Sharing Patient Information
- 26 AZA Attorneys Honored as 2026 Best Lawyers and Ones to Watch
- More than half of AZA’s attorneys honored as Best Lawyers and Ones to Watch
- AZA Names Five New Partners for 2023
- AZA’s Rocker-Lawyer Foster Johnson Featured in Texas Lawbook
- AZA Prevails for Apache Corp. at the Supreme Court of Texas
- Eleven AZA Lawyers Make the 2021 Texas Rising Stars List
- Nine AZA Lawyers Earn 2020 Texas Rising Stars Accolades
- Ten AZA Lawyers Earn 2019 Texas Rising Stars Accolades
- AZA Scores One of the Nation’s Top 100 Verdicts of 2017
- Fourteen AZA Lawyers Earn 2018 Texas Rising Stars Accolades
- Prime Natural Resources Wins $41.6 Million in Wellsure Insurance Dispute
- ZKey Sues Facebook in California
- 9 Reasons We Are Even Stronger
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