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John Claassen Attorney at Law

John Claassen

John Claassen serves as a go-to litigation counsel for investors, entrepreneurs, and companies in the Bay Area and throughout California. He routinely asserts and defends a broad array of civil litigation and dispute resolution matters, including corporate and securities litigation; employment, wage and hour, and idea protection for employers; and collections and collections defense. Over the course of his career, John Claassen has successfully served as lead counsel and strategic advisor in hundreds of matters.

As a successful business owner, John recognizes business needs and formulates efficient, cost-effective litigation strategies that work within larger business objectives.

John studied law at Georgetown University Law Center where he served as Assistant Managing Editor of the Georgetown Journal of Legal Ethics.

Prior to opening his own law firm in 2005, he worked at the world-class law firms Wilson, Sonsini, Goodrich and Rosati, and Skadden Arps. If you are interested in hearing more about John’s experience, please contact us.

When confronted with the litigation process, turn to me for honest and knowledgeable representation.


  • Approximately 20 years of distinguished experience in civil litigation

  • Served as lead attorney on hundreds of matters

  • Superior results time after time

Bar Admissions

  • California

  • New York

  • U.S. Court of Appeals for the Ninth Circuit

  • Various federal trial courts in California and New York


  • J.D. - Georgetown University Law Center


  • The EU Is Not Merely For The Sake Of Unity, Daily Journal (May 27, 2016),

  • Broadly Construe Laws Requiring Openness, Daily Journal (Mar. 31, 2015)

  • Protect the Value of Human Assets, San Francisco Daily Journal (Feb. 4, 2015)

  • When Police Officer Immunity Goes Further Than Necessary, San Francisco Daily Journal (Dec. 9, 2014)

  • It’s Time To Modernize State and Federal Tax Codes, San Francisco Daily Journal (Oct. 20, 2014)