The 100 Largest Companies in California for 2026
If you’re seeking job opportunities in California, you’ve arrived at the right destination.
While you could easily search for “largest companies in California” and find a variety of lists, this guide provides updated information on the companies with the highest employee counts, all of which are headquartered in California.
Below, you’ll find a comprehensive list of the 100 largest companies in California, starting with a look at the top 10:
Allied Universal ranks as the largest employer in California, boasting more employees than any other company in the state. We’ll delve into the specifics shortly; first, let’s outline our methodology.
Methodology for Identifying the Largest Companies in California
At Zippia, we’ve built a comprehensive database of over 250,000 companies across the nation.
For this report, we focused on companies headquartered in California with a minimum of 100 employees, resulting in a pool of 3,000 companies.
We ranked these companies based on their current employee counts to determine the largest employers in California.
As it stands, Allied Universal comes out on top with an impressive 800,000 employees.
Now, let’s explore how the 100 largest companies in California are ranked.
Detailed List of the 100 Largest Companies in California
| Rank | Company | Jobs |
|---|---|---|
| 1 | Allied Universal | Jobs |
| 2 | Kaiser Permanente | Jobs |
| 3 | Wells Fargo Capital II | Jobs |
| 4 | Wells Fargo | Jobs |
| 5 | Continental | Jobs |
| 6 | WOJRC | Jobs |
| 7 | Governor of California | Jobs |
| 8 | Internet Infinity, Inc. | Jobs |
| 9 | Taco Bell | Jobs |
| 10 | Mitsubishi Digital Electronics America, Inc. | Jobs |
In summary, California continues to be home to a diverse range of large employers, from healthcare and finance to technology and retail. As the job market evolves, these companies not only offer significant employment opportunities but also contribute to the state’s economy. If you’re exploring career options in California, consider these top employers for potential job openings and growth opportunities in various sectors.
Author
Chris Kolmar is a co-founder of Zippia and the editor-in-chief of the Zippia career advice blog. He has hired over 50 people in his career, been hired five times, and wants to help you land your next job. His research has been featured on the New York Times, Thrillist, VOX, The Atlantic, and a host of local news. More recently, he's been quoted on USA Today, BusinessInsider, and CNBC.
