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Jonathan S. Sack focuses his practice on a wide-range of labor & employment law issues, including traditional labor, employee discipline and terminations, workplace investigations, wage and hour, discrimination, employee benefits, and leave and disability. He has broad experience before arbitrators and federal and state administrative agencies, including the National Labor Relations Board and the California Labor Commissioner. He also regularly advises clients on employment law issues that arise in corporate transactions. His experience spans numerous industries in both the public and private sectors.



  • Judicial Intern, Hon. Angel Cortiñas, Florida Third District Court of Appeal, 2008

Recognition & Leadership

  • Listed, The Best Lawyers in America, "Ones to Watch," Labor and Employment Law - Management, 2021-2024
  • Steering Committee, United Way of the Bay Area Emerging Leaders, 2016-Present


  • J.D., cum laude, University of Michigan Law School, 2010
  • B.A., Yale University, 2006
  • California