317-622-8970Search all companies →Utilities Companies in California
2,977 companies in Utilities in California.
Explore 2,977 Utilities in California listed with contact details, employee size, revenue, and NAICS/SIC codes. Compare suppliers and service providers side by side and reach the right companies directly, or view the same industry in Utilities in Texas, Utilities in Florida, Utilities in New York.
Largest Utilities in California companies by revenue
The highest-revenue companies in this directory. Open any profile for its full firmographics.
| # | Company | Location | Employees | Revenue |
|---|---|---|---|---|
| 1 | Pacific Gas and Electric Co | Oakland | 29,010 | $24.9B |
| 2 | Southern California Edison | Rosemead | 30,877 | $23.9B |
| 3 | Kyushu Electric Power Co. Inc | Chuo-ku | 162,394 | $14.8B |
| 4 | Sempra Energy | San Diego | 15,938 | $13.7B |
| 5 | AGL | Sydney | 3,735 | $8.9B |
| 6 | SoCalGas | Monterey Park | 8,000 | $6.3B |
| 7 | Statkraft Companies | — | 6,199 | $6.1B |
| 8 | LA Department of Water and Power | Los Angeles | 11,000 | $4.1B |
| 9 | AboitizPower | Taguig | 4,262 | $3.6B |
| 10 | San Diego Gas & Electric Co | San Diego | 4,600 | $3.6B |
Utilities in California companies by size and revenue
| Employees | Companies | Share |
|---|---|---|
| 1-50 | 2,529 | 85.1% |
| 51-200 | 286 | 9.6% |
| 201-1000 | 106 | 3.6% |
| 1001-5000 | 26 | 0.9% |
| 5001+ | 24 | 0.8% |
| Revenue | Companies | Share |
|---|---|---|
| Under $10M | 2,484 | 84.3% |
| $10M-$50M | 334 | 11.3% |
| $50M-$250M | 82 | 2.8% |
| $250M-$1B | 24 | 0.8% |
| $1B+ | 23 | 0.8% |
Share is of companies with a known value — 2,971 with headcount and 2,947 with revenue on file, as of Jul 17, 2026.
Frequently asked questions
How many Utilities in California are there?
There are 2,977 Utilities in California in the directory. Use the filters to narrow by employee count, revenue, or NAICS/SIC code.
How many large companies are in Utilities in California?
72 of the 2,977 companies in Utilities in California employ more than 500 people, and 23 report over $1 billion in annual revenue. See the size and revenue breakdown above for the full distribution.
What size are most Utilities in California companies?
Most are small and mid-sized businesses: the size and revenue tables above show the full spread, from under $10M up to $1B+, across the 2,947 companies with revenue on file.
What information is included for each company?
Every listing includes the company name, location, website, employee size, revenue range where available, and NAICS/SIC classification, with a link to the full profile.
Where does this directory come from?
Listings are compiled and maintained by Factur, a sales and marketing firm for B2B manufacturers. Any company can request an update or removal from its profile page.