Nossaman
Nossaman is a national law firm providing strategic legal and policy counsel across infrastructure, environment, healthcare, real estate, water, government relations, corporate law, litigation, and public sector projects.
Last updated September 16, 2026
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Overview
Nossaman is a national law firm delivering strategic legal and policy counsel in infrastructure, environment, healthcare, real estate, water, government relations, corporate law, litigation, and public sector projects. Its offices are located in Los Angeles, San Francisco, Orange County, Sacramento, San Diego, Austin, Seattle, Washington DC, Denver, New York, Phoenix and Tucson. The firm traces its roots to 1942, when Walter Nossaman planted the Firm's roots in California. It has built nationally recognized practices in infrastructure, environment and real estate, healthcare, pensions, benefits & investments, government relations and corporate law, and has been an industry-leader in California for more than 80 years.
History
Nossaman traces its roots to 1942, when Walter Nossaman planted the Firm's roots in California. Over more than eighty years, the firm has been home to legal minds and creative thinkers, and visionaries William E. Guthner II, John T. Knox and Warren Elliott further enriched and expanded the Firm. The firm has welcomed gifted policymakers who authored landmark legislation, talented dealmakers who have transformed landscapes and skylines alike, and skilled litigators who have helped establish lasting precedent. It has been home to two former members of the U.S. House of Representatives; a former U.S. Secretary of Agriculture; former majority and minority leaders of the California State Senate; a former Deputy Administrator of the Federal Railroad Administration; a former U.S. Attorney; a former U.S. District Court judge; a former Chairman of the Surface Transportation Board; and a former mayor of Los Angeles. Today, Nossaman attracts innovators from across the spectrum.
Products and positioning
A national law firm with a strong foundation in California, known for strategic legal and policy counsel in infrastructure, environment, healthcare, real estate, water, government relations, corporate law, litigation, and public sector projects.
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