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California— USA

Companies in California

6.6M companies registered in California, sourced from official business registers and enriched with industry, size, location and contact data. Below: the largest companies by reported revenue, and how the California business base breaks down by industry and headcount.

6.6M
companies
#1
of 50 states
10.3%
of US records
15
industries ranked
September 2026
data updated

Part of the United States company directory.

Rankings

Largest companies in California

By reported (actual) revenue, updated September 2026. Public-sector entities are excluded.

#CompanyIndustryCityRevenue (USD)Employees
1Apple Inc.Manufacture of consumer electronicsCupertino$416.2B166,000
2Alphabet Inc.Computer programming activitiesMountain View$402.8B190,820
3Nvidia CorporationComputer programming activitiesSanta Clara$215.9B42,000
4Meta Platforms, Inc.Data processing, hosting and related activities; web portalsMenlo Park$201B78,865
5Wells Fargo & CompanyOther monetary intermediationSan Francisco$123.5B217,000
6Wells Fargo Bank, National AssociationOther monetary intermediationSan Francisco$100.1B1,500
7The Walt Disney CompanyActivities of amusement parks and theme parksBurbank$94.4B231,000
8Kaiser Foundation Health Plan, Inc.General medical practice activitiesOakland$75.1B189,319
9Broadcom Inc.Manufacture of electronic components and boardsPalo Alto$63.9B33,000
10Td Synnex CorporationRetail sale of computers, peripheral units and software in specialised storesFremont$62.5B24,000
11Cisco Systems, Inc.Manufacture of computers and peripheral equipmentSan Jose$56.7B86,200
12HP Inc.Manufacture of computers and peripheral equipmentPalo Alto$55.3B55,000
13Intel CorporationManufacture of electronic components and boardsSanta Clara$52.9B85,100
14Ingram Micro Holding CorporationWholesale of computers, computer peripheral equipment and softwareIrvine$52.6B22,200
15University of CaliforniaTertiary educationOakland$51.9B74
16Molina Healthcare, Inc.General medical practice activitiesLong Beach$45.4B19,000
17Netflix, Inc.Other telecommunications activitiesLos Gatos$45.2B16,000
18California State Teachers Retirement SystemPension fundingWest Sacramento$44.4B535
19Qualcomm IncorporatedManufacture of consumer electronicsSan Diego$44.3B52,000
20Salesforce, Inc.Software publishingSan Francisco$41.5B83,334
21Visa Inc.Other business support service activities n.e.c.Foster City$40B34,100
22Amgen Inc.Manufacture of pharmaceutical preparationsThousand Oaks$36.8B31,500
23Wheatland Union High School Grad Night, IncPrimary educationWheatland$35.6B76
24Advanced Micro Devices, Inc.Manufacture of electronic components and boardsSanta Clara$34.6B31,000
25Paypal Holdings, Inc.Other business support service activities n.e.c.San Jose$33.2B23,800

Top 25 by revenue reported to the register. Companies filing no revenue figure are not ranked, whatever their size.

Apple Inc. leads California at $416.2B in reported revenue, from Cupertino.

Coverage

Companies by industry in California

The industries holding the most companies, by NACE activity code.

Other business support service activities n.e.c.8299
399,867
Business and other management consultancy activities7022
305,852
Trusts, funds and similar financial entities6430
254,246
Restaurants and mobile food service activities5610
214,578
Construction of residential and non-residential buildings4120
203,607
Other human health activities8690
175,979
Real estate agencies6831
163,776
Management of real estate on a fee or contract basis6832
160,473
General medical practice activities8621
151,186
Other transportation support activities5229
141,988
Maintenance and repair of motor vehicles4520
126,993
Hairdressing and other beauty treatment9602
111,615
Activities of other membership organisations n.e.c.9499
111,337
Legal activities6910
105,514
Retail sale of flowers, plants, seeds, fertilisers, pet animals and pet food in specialised stores4776
96,794

Ranked by number of companies. Each record carries its NACE code alongside SIC and NAICS, so the same segment can be pulled in any of the three schemes.

Browse these directories

Other business support service activities n.e.c. is the largest activity in California, with 399,867 companies.

Distribution

Company size

By number of employees.

1-4
5,761,124
5-9
443,548
10-19
135,572
20-49
86,911
50-99
35,522
100-199
15,875
200-499
9,195
500-999
3,133
1000+
3,219

76,283 companies have no disclosed headcount (excluded from the chart).

89% of California companies with a disclosed headcount fall in the 1-4 employee band.

Data coverage

What a California record carries

Share of the state's companies holding each contact field.

27%

with a website

47%

with a phone number

16%

with an email address

Counted against the 6.6M companies in California. Firmographics — industry, size, address, status — are present on every record.

FAQ

Companies in California — frequently asked questions

There are 6.6M companies registered in California in the InfobelPRO database, across every sector from sole proprietorships to large enterprises.
By revenue reported to the register, the largest company headquartered in California is Apple Inc., based in Cupertino, in manufacture of consumer electronics.
Other business support service activities n.e.c. (399,867 companies), Business and other management consultancy activities (305,852 companies), Trusts, funds and similar financial entities (254,246 companies) lead the California business base by number of companies.
Registered name and address, industry classification in NACE, SIC and NAICS, company status and legal form, employee band, reported revenue where filed, and contact fields — website, phone and email — where available.
Yes. The California file is available as a bulk export or through the API, filtered by industry, company size, city or revenue. Licensing is on volume and use, not per seat.

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