Kleinfelder is an engineering consulting firm that provides services in the areas of construction management, environmental consulting, geotechnical engineering, and more. The company was founded in 1961 by Bill Kleinfelder and is headquartered in San Diego, California. Kleinfelder has more than 70 offices across the United States, Canada, and Australia and employs over 2,000 people. The company has worked on a number of high-profile projects, including the San Francisco-Oakland Bay Bridge and the Hoover Dam Bypass. Kleinfelder is committed to sustainability and has been recognized for its efforts in this area by organizations such as the U.S. Green Building Council.