List of companies based in Berkeley, California

• Axcom Trading Advisors
• Berkeley Farms
• Berkeley Systems
• Berkeley Softworks
• Berkeley Tribe
• Beserkley Records
• Black Lizard - book publisher
• Bookpeople - an alternative book wholesaler, responsible for much of the growth in alternative/small press book publishing from 1970-1990; moved to Oakland in the 1990s, closed in 2004
• California Faience
• Cetus Corporation
• Clif Bar - headquarters formerly in Berkeley, moved to neighboring Emeryville
• Cody's Books - founded in 1956 and closed in 2008, was "a pioneer in bookselling, bringing the paperback revolution to Berkeley, fighting censorship, and providing a safe harbor from teargas for student activists during the Free Speech Movement and throughout the 1960s and 70s"^[5]
• Consumers' Cooperative of Berkeley - the "Berkeley Co-op", a consumers' cooperative that operated from 1939 to 1988; at its height of popularity had over 100,000 members, making it the largest cooperative of its kind in North America

• Cutter Laboratories - pharmaceutical company bought out by Bayer in the 1970s
• Daliel's Bookstore
• Ekso Bionics - moved to Richmond
• ESS Technology - moved to Fremont
• Fantasy Records - primarily now in Hollywood
• Grey Rabbit - long-distance bus company; out of business in 1983
• Hall-Scott - defunct engine manufacturer
• Howell-North Books - publishers of railroadiana and history books
• Image Comics - independent comic book publisher (moved to Portland, OR)
• Lookout Records
• Metalanguage Records
• The Nature Company - former nationwide natural history and scientific general merchandise retailer
• The Other Change of Hobbit - one of Berkeley's two science fiction and fantasy bookstores; first opened in 1977 (moved to El Cerrito)
• Peet's Coffee & Tea - opened its first store in Berkeley, at Vine and Walnut Street, which is still operating; its corporate headquarters and roasting plant are now located in nearby Alameda
• Rocknroll Blitzkrieg Records

• Scharffen Berger Chocolate Maker - now a subsidiary of The Hershey Company, closing the Berkeley factory in 2009
• Shambhala Publications - now in Massachusetts
• Whole Earth Access - founded in 1969 and closed in 1998; initially a countercultural retail store inspired by Stewart Brand's Whole Earth Catalog^[6]
• Wilderness Press - moved to Alabama
• Wind River Systems - moved to Alameda

According to the City's 2009 Comprehensive Annual Financial Report,^[7] the top employers in the city for that year were:

#	Employer	# of employees
1	University of California, Berkeley	14,444
2	Lawrence Berkeley National Laboratory	3,735
3	Alta Bates Summit Medical Center	3,100
4	City of Berkeley	1,658
5	Bayer	1,500
6	Berkeley Unified School District	1,200
7	Kaiser Permanente	700
8	Pacific Steel	600
9	Andronico's	325
10	Berkeley City College	300

• Former employers of note include the State of California Health Department (900 in 1988, 600 in 2001), now the California Department of Public Health and the California Department of Health Care Services.^[8][9]

• List of companies based in the San Francisco Bay Area