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We figured out the best biggest companies to work for in California using data on salaries, company financial health, and employee diversity. You can also search for the best biggest companies to work for in any other state or city.

Zippia score 4.0
Source Photonics is a leading provider of innovative and reliable optical communications technology that enables communications and connectivity in datacenters, metro, and access networks
Zippia score 4.3
Search our extensive vehicle inventory for new and used cars, trucks and SUVs for sale or lease at Galpin Motors dealership near Los Angeles, CA.
Zippia score 4.2
Imperial Toy, LLC engages in the manufacture, distribution, and sale of bubbles and novelty toys worldwide. It sells its products through a network of retailers. The company was founded in 1969 and is headquartered in North Hills, California with locations in Hong Kong; Memphis, Tennessee; and San Diego, California. It also has offices in Los Angeles, California; Hong Kong; and Modena, Italy.
Zippia score 4.1
Moore Industries-International, Inc. is in the process control, system integration, and factory automation industries. Since 1968, the company has been in industrial signal interface technology.
Zippia score 4.1
da Vinci located in West Hills, CA offers full-service dental laboratory services and provides high-quality products for dentists.
Zippia score 4.1
Crystal Springs Uplands School is an independent, coeducational, college prep day school in Hillsborough, California, United States.
Zippia score 4.2
Get the latest Kdrama episode recaps, reviews and fan ratings here at Dramabeans. Join our open thread discussions on the best Kdrama shows!
Zippia score 4.2
The Nueva School is a private school, with two campuses-the lower and middle school in Hillsborough, and the high school in San Mateo, California-serving gifted students in pre-kindergarten through twelfth grade.
Zippia score 3.6
Executive Offices
Zippia score 4.6
Thermo Fisher Scientific Inc. (NYSE: TMO) is the world leader in serving science. Their mission is to enable their customers to make the world healthier, cleaner and safer. With revenues of more than $10 billion, they have approximately 35,000 employees and serve customers within pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions and government agencies, as well as in environmental and process control industries. They create value for their key stakeholders through two premier brands, Thermo Scientific and Fisher Scientific, which offer a unique combination of continuous technology development and the most convenient purchasing options. Their products and services help accelerate the pace of scientific discovery, and solve analytical challenges ranging from complex research to routine testing to field applications.
Zippia score 4.4
Medfusion is a healthcare IT company obsessed with improving the patient experience simplifying patient-provider communications and driving financial and operational efficiencies for providers. Whether you choose to enable patient self-scheduling for all or just a portion of your open appointments, you'll be amazed at how much of your staff time, and cost, is reduced.
Zippia score 4.5
GAT Airline Ground Support has been providing quality airline ground, passenger, and cargo support services for more than 40 Years
Zippia score 4.5
Pharmavite is a leader in the health and wellness industry that offers quality vitamins and supplements under the Nature Made brand. Nature Made(r) is the number one selling national vitamin and supplement brand in food, drug, mass and club retail outlets. The company's philosophy is that good nutrition and essential nutrients & minerals are vital for good health and wellness. Pharmavite was founded in 1971 in Northridge, CA, and has a manufacturing facility in Opelika, AL.
Zippia score 3.7
Alliant International University gets its name from the merger of three legacy institutions: San Francisco Law School founded in 1909, United States International University (USIU) founded in 1927, and the California School of Professional Psychology (CSPP) founded in 1969. In 2001, USIU and CSPP merged, forming Alliant with San Francisco Law School (SFLS) joining in 2010. From 1909 through today, one constant remains: We specialize in preparing students for careers of impact through our model of academic rigor paired with hands-on training. Alliant International University prepares students for professional careers of service and leadership, and promotes the discovery and application of knowledge to improve the lives of people in diverse cultures and communities around the world.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Source Photonics | |
| 2 | Galpin Motors | |
| 3 | Imperial Toy | |
| 4 | Moore Industries | |
| 5 | da Vinci Dental Studios | |
| 6 | Crystal Springs Uplands School | |
| 7 | Dramabeans | |
| 8 | The Nueva School | |
| 9 | Town Of Hillsborough |