The 100 largest companies in Berkeley (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	University of California, Berkeley berkeley.edu Public research university offering diverse academic programs, fostering innovation, and serving as a flagship institution in California.	Higher Education	🇺🇸 Berkeley	24,082	1868
2	Berkeley Lab linktr.ee A national laboratory managed by the University of California for the Department of Energy, focusing on sustainable energy, materials innovation, computing, and scientific exploration	Research Services	🇺🇸 Berkeley	5,253	1931
3	University of California, Berkeley, Haas School of Business haas.berkeley.edu A top-ranked business school offering MBA, financial engineering, PhD, and undergraduate programs with a distinctive culture focused on leadership principles Alumni network of over 40,000	Higher Education	🇺🇸 Berkeley	2,012	n/a
4	Education Unlimited educationunlimited.com The company offers academic summer camps and precollege programs in California and Massachusetts for students in grades 4-12, focusing on various subjects and college preparation	Primary and Secondary Education	🇺🇸 Berkeley	1,793	1993
5	Domestika domestika.org A fast-growing creative community offering online courses taught by experts, connecting millions of creative individuals worldwide to unleash their potential	Technology, Information and Internet	🇺🇸 Berkeley	1,387	2010
6	City of Berkeley berkeleyca.gov Local government offering diverse municipal services including health, housing, waste management, parks, recreation, and community engagement for residents.	Government Administration	🇺🇸 Berkeley	1,250	1878
7	Wing Assistant wingassistant.com Provides top-tier remote talent for SMBs, startups, and executives to handle tasks like Social Media Management, Data Entry, Sales Calling, allowing focus on business growth	Internet Marketplace Platforms	🇺🇸 Berkeley	1,221	2018
8	Backroads backroads.com Specializing in biking, hiking, and multi-adventure trips worldwide, including cruises Providing quality travel experiences for all ages with a focus on exceptional service	Travel Arrangements	🇺🇸 Berkeley	1,158	n/a
9	BERKELEY UNIFIED SCHOOL DISTRICT berkeleyschools.net Fostering academic excellence and positive contributions to society for a diverse student body is the mission of this educational organization	Primary and Secondary Education	🇺🇸 Berkeley	1,007	n/a
10	MIG migcom.com An organization specializing in planning, design, and sustainability of environments for human development, emphasizing inclusivity, community engagement, and strategic approaches	Architecture and Planning	🇺🇸 Berkeley	963	1982
11	LifeLong Medical Care lifelongmedical.org LifeLong Medical Care offers compassionate high-quality healthcare services to over 66,000 individuals annually in Alameda, Contra Costa, and Marin Counties, regardless of ability to pay	Hospitals and Health Care	🇺🇸 Berkeley	756	1976
12	EVERYTHING everythingthebrand.com A platform bridging creatives and entrepreneurs, inspiring others to pursue their passion regardless of constraints through sharing stories and experiences	Retail Apparel and Fashion	🇺🇸 Berkeley	751	n/a
13	University of California, Berkeley - School of Law law.berkeley.edu Offers top-tier J.D., LL.M., and J.S.D. programs with expert faculty, committed to solving real-world problems and creating a just society through research and pro-bono efforts.	Higher Education	🇺🇸 Berkeley	715	1912
14	Vatterott College vatterott.edu A provider of career training programs in various fields, serving students across multiple locations and online, focused on enhancing career skills	Education Administration Programs	🇺🇸 Berkeley	633	1969
15	Berkeley SkyDeck skydeck.berkeley.edu An official startup accelerator affiliated with UC Berkeley, providing consulting, resources, mentorship, and connections to help Cal entrepreneurs launch and grow transformative startups	Education Administration Programs	🇺🇸 Berkeley	624	2012
16	Associated Students of the University of California asuc.org A 501(c)3 nonprofit student government representing UC Berkeley students, advocating for their interests and providing funding for services and clubs on campus	Political Organizations	🇺🇸 Berkeley	605	1887
17	UC Berkeley Extension extension.berkeley.edu A continuing education institution offering over 1,500 courses, professional certificates, and specialized programs online and in the San Francisco Bay Area	Higher Education	🇺🇸 Berkeley	531	1891
18	UC Berkeley College of Engineering engineering.berkeley.edu A community focused on educating future engineering leaders, conducting impactful research, and serving society through technological innovation and advancements	Higher Education	🇺🇸 Berkeley	527	1868
19	Crossroads Trading crossroadstrading.com A pioneering company offering secondhand designer clothing in a fashion-forward, eco-conscious environment with multiple retail locations and innovative selling programs	Retail Apparel and Fashion	🇺🇸 Berkeley	486	1991
20	The Voleon Group voleon.com A quantitative hedge fund in Berkeley, CA, founded by machine learning scientists, using statistical machine learning to solve financial prediction problems	Financial Services	🇺🇸 Berkeley	486	2007
21	Berkeley City College berkeleycitycollege.edu A California Community College in Berkeley, accredited by the Western Association of Schools and Colleges, offering various educational programs	Higher Education	🇺🇸 Berkeley	466	n/a
22	Alta Bates Summit Medical Center, Inc.sutterhealth.org A not-for-profit hospital in Oakland and Berkeley, part of the Sutter Health network, providing healthcare services to patients	Medical Practices	🇺🇸 Berkeley	463	1936
23	UC Berkeley School of Public Health publichealth.berkeley.edu Leader in public health education, research, and service with a focus on interdisciplinary approaches to address global health challenges and promote social justice	Higher Education	🇺🇸 Berkeley	453	1943
24	UC Berkeley Electrical Engineering & Computer Sciences (EECS)eecs.berkeley.edu Leading research and instructional programs in Electrical Engineering and Computer Sciences - fostering cross-disciplinary projects and rankings among the top three globally	Higher Education	🇺🇸 Berkeley	440	1930
25	Berkeley Artificial Intelligence Research bair.berkeley.edu A research lab at UC Berkeley focused on artificial intelligence, machine learning, computer vision, robotics, and interdisciplinary collaborations	Research Services	🇺🇸 Berkeley	421	n/a
26	LeadGenius leadgenius.com It uncovers and personalizes hard-to-find B2B data using technology and human expertise, backed by prominent Silicon Valley investors.	Software Development	🇺🇸 Berkeley	409	2011
27	Cal Athletics calbears.com A company providing student-athletes with a top-tier experience, focusing on athletic and academic development for long-term success #GoBears	Spectator Sports	🇺🇸 Berkeley	403	1868
28	Krisp krisp.ai Develops real-time Voice AI improving live voice conversations. Products include noise cancellation, voice isolation, accent conversion, speech translation, agent assist, speech analytics, AI voice agents.	IT Services and IT Consulting	🇺🇸 Berkeley	388	2017
29	Jitsu gojitsu.com Technology-driven last-mile delivery service offering fast, affordable, and sustainable shipping solutions with personalized tracking for eCommerce brands.	Transportation, Logistics, Supply Chain and Storage	🇺🇸 Berkeley	387	2015
30	Preferred Meals preferredmeals.com A leading provider of nutritious, quality meal solutions for schools, serving over 130 million meals annually with a focus on culinary innovation and exemplary service	Food and Beverage Manufacturing	🇺🇸 Berkeley	386	n/a
31	Meyer Sound meyersound.com Leading global innovator in self-powered loudspeaker systems, active acoustics, spatial sound mixing, and system design Known for pioneering audio technology solutions	Appliances, Electrical, and Electronics Manufacturing	🇺🇸 Berkeley	384	1979
32	Portrait Innovations adfadlklkjljlj.com This company's LinkedIn page contains no information	Civic and Social Organizations	🇺🇸 Berkeley	364	2019
33	IDOT bit.ly Nonprofit organization providing accessible design education to high school students through curriculum, industry exposure, mentorship, and competition	Design Services	🇺🇸 Berkeley	362	n/a
34	The Daily Californian dailycal.org An independent, student-run newspaper serving UC Berkeley and the Berkeley community, publishing regularly throughout the academic year since 1871	Media Production	🇺🇸 Berkeley	360	1871
35	Once Upon a Farm onceuponafarmorganics.com A company providing organic, refrigerated snacks for children using high-pressure pasteurization to preserve nutrients and flavors of farm-fresh ingredients	Food and Beverage Services	🇺🇸 Berkeley	355	2015
36	KI Industries, Inc.kiindustries.com Design manufacture decorative plastic die cast components for automotive and appliance industries with focus on aesthetics quality and customer service.	Plastics Manufacturing	🇺🇸 Berkeley	335	1964
37	KoBold Metals koboldmetals.com Innovative company using digital exploration, statistical modeling, and big data to discover ethical sources of essential metals for electric vehicles	Mining	🇺🇸 Berkeley	331	2018
38	Perfect Day perfectday.com This company produces animal-free whey protein using safe fermentation methods, creating dairy products with significantly lower environmental impact than traditional milk	Food and Beverage Services	🇺🇸 Berkeley	326	2014
39	Another Planet Entertainment apeconcerts.com Event production and promotion company founded in 2003, specializing in concerts at various venues and organizing major music festivals in San Francisco	Entertainment Providers	🇺🇸 Berkeley	317	2003
40	Peermusic peermusic.com Global music publisher established over 95 years ago, holding over 500,000 titles and operating in 32 countries, making it the largest independent publisher worldwide	Musicians	🇺🇸 Berkeley	317	1928
41	Foresight Mental Health foresightmentalhealth.com A mental health organization providing accessible therapy and psychiatry services through insurance coverage and virtual care with licensed professionals dedicated to patient wellbeing	Mental Health Care	🇺🇸 Berkeley	306	2018
42	Activate activate.org Activate empowers scientists through a fellowship program to launch startups addressing global challenges, ensuring their research is brought to market effectively	Non-profit Organizations	🇺🇸 Berkeley	284	2015
43	Lawrence Hall of Science, UC Berkeley lawrencehallofscience.org Innovating in science education for over 50 years to make STEM accessible through experiential learning and empowering educators for a brighter future	Education	🇺🇸 Berkeley	272	1968
44	Center for Independent Living, Inc.thecil.org The organization advocates for individuals with disabilities, promoting awareness, collaboration, and opportunities within the community through various services	Non-profit Organizations	🇺🇸 Berkeley	240	1972
45	Access Softek accesssoftek.com Innovative fintech company offering digital banking solutions to credit unions and banks, with a focus on cutting-edge technology and industry-leading features	Software Development	🇺🇸 Berkeley	227	1986
46	Educational Opportunity Program (EOP)eop.berkeley.edu The Educational Opportunity Program at Berkeley supports first-generation, low-income, and underrepresented college students to succeed through academic counseling and comprehensive services	Higher Education	🇺🇸 Berkeley	222	n/a
47	Flipout flipout.io A platform enabling users to make sports predictions with friends, follow live scores, and win rewards for free, enhancing the sports experience	Entertainment Providers	🇺🇸 Berkeley	211	n/a
48	UC Berkeley College of Computing, Data Science, and Society cdss.berkeley.edu A leading academic institution offering a dynamic teaching and research environment in data science, preparing students to address social challenges across domains	Higher Education	🇺🇸 Berkeley	205	n/a
49	Othering & Belonging Institute at UC Berkeley belonging.berkeley.edu The institute at UC Berkeley works to challenge barriers to inclusivity, justice, and sustainability through research, policy, and advocacy for marginalized communities	Public Policy Offices	🇺🇸 Berkeley	186	2012
50	UC Berkeley College of Environmental Design ced.berkeley.edu A leading environmental design school offering undergraduate and graduate degrees in architecture, planning, landscape architecture, and sustainable environmental design	Higher Education	🇺🇸 Berkeley	180	1959
51	National Writing Project nwp.org The organization focuses on improving writing and learning by providing professional development, resources, research, and promoting educational equity and diversity	Education Administration Programs	🇺🇸 Berkeley	176	1974
52	Brushstrokes brushstrokestudio.com A studio in Berkeley offering pottery, glass fusing, and mosaics classes, drop-in studio time, birthday parties, summer camps, and special workshops	Retail Art Supplies	🇺🇸 Berkeley	173	n/a
53	Community Partners International cpintl.org Nonprofit organization empowering communities in Asia to meet health, humanitarian, and development needs in conflict, remote, and marginalized areas	Non-profit Organizations	🇺🇸 Berkeley	172	1998
54	SPAR Research supervisedprogramforalignment.org SPAR offers students an opportunity to engage in AI safety research projects with global mentors, focusing on technical safety, engineering, and governance	Education	🇺🇸 Berkeley	169	2023
55	Innovative Design innovativedesign.club A group of creative graphic designers and photographers at UC Berkeley collaborating to create unique photography and designs for peers and clients	Design Services	🇺🇸 Berkeley	167	2008
56	UC Berkeley Solar Vehicle Team, CalSol calsol.berkeley.edu A non-profit organization at UC Berkeley that designs, builds, tests, and races fully solar powered vehicles, offering hands-on experience for students	Motor Vehicle Manufacturing	🇺🇸 Berkeley	166	1990
57	Latinx Business Student Association ucblbsa.com A Latinx student association at UC Berkeley empowering leaders through professional development, community service, academics, and a supportive community	Civic and Social Organizations	🇺🇸 Berkeley	166	1998
58	Space Sciences Laboratory ssl.berkeley.edu A premier space sciences research facility at UC Berkeley, focusing on experiments and observations in space, education, and future space missions	Higher Education	🇺🇸 Berkeley	165	1958
59	Formula Electric at Berkeley ev.studentorg.berkeley.edu A team of UC Berkeley students designing and building electric race cars for the Formula SAE EV competition	Motor Vehicle Manufacturing	🇺🇸 Berkeley	164	2020
60	University of California, Berkeley, Goldman School of Public Policy gspp.berkeley.edu A graduate program at UC Berkeley preparing students for public leadership careers through various degree programs and top faculty expertise	Higher Education	🇺🇸 Berkeley	163	1969
61	UC Berkeley School of Information ischool.berkeley.edu The School of Information at UC Berkeley offers graduate programs in information science, data science, and cybersecurity, focusing on expanding access to information while ensuring security and privacy	Higher Education	🇺🇸 Berkeley	163	1994
62	OneSky for all children onesky.org Empowering communities in Asia through care and safe learning environments for marginalized young children to thrive	Non-profit Organizations	🇺🇸 Berkeley	163	1998
63	Garb berkeleygarb.com UC Berkeley based fashion club injecting humor and relatability into the fashion world, helping college students dress better with entertainment	Retail Apparel and Fashion	🇺🇸 Berkeley	162	2017
64	UC Berkeley Public Service Center publicservice.berkeley.edu A nonprofit organization at UC Berkeley connecting people for social justice through volunteer opportunities, internships, courses, and community partnerships	Higher Education	🇺🇸 Berkeley	155	1967
65	UC Berkeley Labor Center laborcenter.berkeley.edu Providing education, research, and policy development in labor issues for a new generation of leaders, unions, government, and employers	Higher Education	🇺🇸 Berkeley	154	n/a
66	Cal Performances calperformances.org A performing arts organization at UC Berkeley, presenting, commissioning, and producing performances of the highest artistic quality with educational programming	Performing Arts	🇺🇸 Berkeley	153	1906
67	Graduate Theological Union gtu.edu The Graduate Theological Union is a diverse partnership of seminaries and graduate schools focused on interreligious education, dialogue, and innovation	Higher Education	🇺🇸 Berkeley	152	1962
68	RelationalAI relational.ai RelationalAI builds fast, scalable, expressive relational knowledge graphs that leverage machine learning and reasoning to streamline enterprise systems for efficiency and innovation	Software Development	🇺🇸 Berkeley	151	2017
69	Claremont Resort & Club claremontresortandclub.com Historic East Bay resort with stunning views, featuring 276 guestrooms for relaxation and hosting meetings and events for over 100 years	Hospitality	🇺🇸 Berkeley	149	1915
70	New Energy Nexus newenergynexus.com Global ecosystem of funds and accelerators supporting diverse clean energy entrepreneurs with tailored programs, capital, mentoring, and networks to tackle climate change	Non-profit Organizations	🇺🇸 Berkeley	148	2004
71	Satellite Affordable Housing Associates (SAHA)sahahomes.org The company provides quality affordable homes and services to empower individuals, strengthen neighborhoods, and create healthier, safer communities in the Bay Area	Real Estate	🇺🇸 Berkeley	148	2013
72	Intertrust intertrust.com A Silicon Valley-based company specializing in trusted computing products and services to enable secure transactions across open networks globally	Software Development	🇺🇸 Berkeley	148	1990
73	KPFA Radio kpfa.org A community-supported radio station promoting cultural diversity, understanding, freedom of the press, and independent funding in California since 1949	Media Production	🇺🇸 Berkeley	147	1949
74	GU Energy Labs guenergy.com A company dedicated to athleticism since 1993, offering energy, hydration, and recovery products for athletes with a focus on movement, innovation, collaboration, and accountability	Food and Beverage Services	🇺🇸 Berkeley	146	1993
75	Joint Genome Institute jgi.doe.gov A DOE user facility at Lawrence Berkeley Lab providing advanced genome science capabilities for research in energy and environmental challenges	Research Services	🇺🇸 Berkeley	146	1997
76	Perseus Books Group perseusbooks.com The company provides sales, marketing, and distribution services to independent publishers, as well as owning various publishing programs and partnerships	Book and Periodical Publishing	🇺🇸 Berkeley	93	1997
77	Intento inten.to Intento specializes in enabling global companies to translate efficiently in 450+ languages using Machine Translation and AI, enhancing customer and employee experience	Software Development	🇺🇸 Berkeley	74	2016
78	ClearML clear.ml Platform managing GPU clusters, optimizing AI workflows, deploying GenAI models, accelerating AI adoption, and streamlining end-to-end AI development lifecycles.	Software Development	🇺🇸 Berkeley	70	2022
79	TCHO Chocolate tcho.com This company crafts award-winning chocolate through direct collaboration with cocoa farmers globally, focusing on improving cacao beans and inspiring chefs and chocolate enthusiasts.	Food and Beverage Services	🇺🇸 Berkeley	58	2008
80	Bolt Threads boltthreads.com Innovative company creating sustainable materials for apparel, footwear, and beauty brands, emphasizing diversity, equity, and inclusion in their team	Biotechnology Research	🇺🇸 Berkeley	49	2009
81	iHomefinder, Inc.ihomefinder.com A leading provider of real estate search technology, powering thousands of websites with IDX data and maintaining trusted relationships with MLS associations	IT Services and IT Consulting	🇺🇸 Berkeley	42	n/a
82	QuEST quest-world.com This company provides cost-effective energy efficiency services for commercial and industrial sectors, with a focus on hard-to-reach areas like hospitals and data centers Ongoing monitoring ensures energy savings	Renewables & Environment	🇺🇸 Berkeley	38	2001
83	Quarrio quarrio.com It harnesses deterministic AI and semantic understanding for conversational analytics, enabling precise data insights and improving decision-making across various industries.	Software Development	🇺🇸 Berkeley	35	2013
84	SG Real Estate sgreinc.com A local leader in real estate, specializing in multifamily, student, and commercial properties Offers asset management, brokerage, and investment opportunities Partnering in client success	Real Estate	🇺🇸 Berkeley	33	2010
85	11Sight 11sight.com Innovative platform enabling businesses to connect with customers through video, audio, or chat with one click, enhancing customer engagement	Technology, Information and Internet	🇺🇸 Berkeley	28	2016
86	Souvenir Coffee Co.souvenir-coffee.com An affordable premium coffee company based in Berkeley, CA, sourcing beans globally and delivering hand-roasted blends with exceptional customer service nationwide	Food and Beverage Services	🇺🇸 Berkeley	21	2016
87	CloudBase Services cloudbaseservices.com We specialize in improving business processes through innovative technology solutions, customizing cloud services, and understanding industry-specific needs for clients worldwide	IT Services and IT Consulting	🇺🇸 Berkeley	17	2005
88	Berkeley Gateway Accelerator futurefrontier.vc Early-stage venture capital firm investing in exceptional entrepreneurs with proprietary screening software and a network for early access to high-quality startups	Venture Capital and Private Equity Principals	🇺🇸 Berkeley	17	2023
89	PlayEngine Inc.playengine.com A Silicon Valley-based B2B sports betting software provider offering automated, data-driven solutions to licensed B2C gaming operators for increased revenue and efficiency	Software Development	🇺🇸 Berkeley	16	2019
90	Charles Scwab & Co onlinecareer360.com A financial services company headquartered in Berkeley, California, offering a range of services from investing to banking	Financial Services	🇺🇸 Berkeley	15	n/a
91	Read Investments readinvestments.com A full-service real estate firm offering asset management, property management, project management, and acquisition services with a strong equity platform	Real Estate	🇺🇸 Berkeley	12	n/a
92	Neill Cartage neillcartage.com A full service logistics, warehousing, and distribution company in the Midwest, specializing in paper, chemical, and general commodities for over 65 years	Warehousing and Storage	🇺🇸 Berkeley	10	1946
93	Materials Science and Engineering Association msea.berkeley.edu This company specializes in materials science and engineering, exploring ways to manipulate materials for innovative solutions and creations	Higher Education	🇺🇸 Berkeley	9	2017
94	Hyperframe hyperframe.com Innovating the building materials industry, shaping the future of construction through groundbreaking products and solutions	Construction	🇺🇸 Berkeley	8	2018
95	Zolo Coffee Roasters zolocoffee.com Family-owned coffee roasting company in Berkeley, CA, offering wholesale, farmers' markets, online sales, catering, and training Vertically integrated with a focus on high-quality, approachable coffee	Food and Beverage Services	🇺🇸 Berkeley	6	2013
96	Elmworks elm.works This company focuses on quantifying energy use, exploring innovative solutions, and striving to make a positive impact through their work	Industrial Machinery Manufacturing	🇺🇸 Berkeley	4	2019
97	Pagefelt pagefelt.com Empowering Berkeley students by providing accessible mentorship and coaching to develop life skills and habits through a Continuously Learning Emotional Productivity Platform	Software Development	🇺🇸 Berkeley	3	n/a
98	Blue Bear Ventures bbv.io Venture capital firm supporting founders from top research institutions in Deep Tech fields like AI, Synthetic Biology, Energy, and Gene Therapy	Venture Capital and Private Equity Principals	🇺🇸 Berkeley	3	2017
99	Future Communities Capital futurecommunities.vc An early-stage venture fund supports founders in revolutionizing traditional sectors and driving innovation in the industry	Venture Capital and Private Equity Principals	🇺🇸 Berkeley	3	n/a
100	EoT Solutions - The Energy of Things eotsolutions.com A Berkeley-based energy company providing sustainable solutions for 100% renewable energy through distributed energy resources, intelligent management software, and commercial energy solutions	Renewable Energy Semiconductor Manufacturing	🇺🇸 Berkeley	2	2016

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

The same list elsewhere in United States

The largest companies in the United States 91,669
The largest companies in California 12,813
The largest companies in New York State 10,485
The largest companies in Texas 8,086
The largest companies in Florida 4,945
The largest companies in Illinois 4,175
The largest companies in Pennsylvania 3,110
The largest companies in Massachusetts 3,093
The largest companies in Georgia 2,632
The largest companies in Ohio 2,618
The largest companies in New Jersey 2,569
The largest companies in Virginia 2,503
The largest companies in Michigan 2,346
The largest companies in North Carolina 2,174
The largest companies in Alabama 1,806
The largest companies in Washington State 1,785
The largest companies in Colorado 1,774
The largest companies in Minnesota 1,700
The largest companies in Maryland 1,527
The largest companies in Wisconsin 1,482
The largest companies in New York 6,920
The largest companies in San Francisco 2,030
The largest companies in Houston 1,791
The largest companies in Chicago 1,668