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Patrick W. Dennis

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Patrick W. DennisPatrick W. Dennis
T: +1 213.229.7567
F: +1 213.229.6567
333 South Grand Avenue
Los Angeles, CA 90071-3197

Patrick W. Dennis is a partner in the Los Angeles office of Gibson, Dunn & Crutcher LLP.  He co-chairs the Environmental Litigation and Mass Tort Practice Group for the firm and in that capacity works with and helps lead nine other partners and approximately thirty associates who practice full-time in the environmental law area in four different offices within the United States.  Mr. Dennis has extensive experience representing clients in general manufacturing, energy, banking, aerospace, real estate, construction, electronics, oil and gas, cement making, and lead recycling in a wide range of environmental matters.  He has substantial experience in the following areas:

Mr. Dennis is consistently named among the nation’s leading environmental law attorneys.  For 2010 through 2012, he is in the top tier, Band1, ranking for California in Chambers USA: America’s Leading Lawyers for Business.  In 2012, 2013 and 2014 Best Lawyers named him Los Angeles Litigation – Environmental “Lawyer of the Year.”  He was also selected by his peers for inclusion in The Best Lawyers in America© for the field of Environmental Law and Litigation-Environmental.  He was one of the ten environmental litigation lawyers named in the Legal 500 United States in 2011.  In 2009, Mr. Dennis was elected to the prestigious American College of Environmental Lawyers by his peers.  He was the Chair and a founding member of the Los Angeles County Bar Association Environmental Law Section.  Mr. Dennis also serves on the Board of Trustees for the California Science Center Foundation. 

He received a B.S. (Civil Engineering – 1976); M.S. (Mechanical Engineering – 1978); and a J.D./MBA (1982), all from the University of California, Los Angeles.  Mr. Dennis has practiced exclusively in the environmental law area since graduating from law school.

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