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

Zippia score 4.4
Union Oil Company of California and Unocal Corporation, dba Unocal is a company that was a major petroleum explorer and marketer in the late 19th century, through the 20th century, and into the early 21st century. It was headquartered in El Segundo, California, United States.
Zippia score 3.8
Navitas Semiconductor develops a range of GaN power ICs for the power supply markets. The GaNFast Power ICs enable power systems to run up to 100x faster than traditional silicon while delivering 4x higher power density, 40% less loss. The company's products support mobile phones, wireless charging, LED lighting, TV and monitor, solar, and datacenters. Navitas Semiconductor was formed in 2014 and is based in El Segundo, California.
Zippia score 4.8
Our company's foundation is built on our values, which distinguish us and guide our actions to deliver results. We conduct our business in a socially and environmentally responsible manner, respecting the law and universal human rights to benefit the communities where we work.
Zippia score 4.7
Cenergy is the most dependable source of workforce solutions in the energy industry. We provide specialized energy personnel, safety services, rig inspection, logistics optimization and vendor management. We are dedicated to delivering the right people...
Zippia score 4.7
Ameresco, Inc. provides energy efficiency solutions for facilities in North America. The company engages in the development, design, engineering, and installation of projects that reduce the energy, as well as operation and maintenance costs of governmental, educational, utility, healthcare, and other institutional, commercial, and industrial entities facilities. Its set of services includes upgrades to a facility's energy infrastructure. Ameresco provides renewable energy products and services that include the construction of small-scale plants that produce electricity, gas, heat, or cooling from renewable sources of energy; the sale of such electricity, processed landfill gas, heat, or cooling from plants that it owns; and the sale and installation of solar energy products and systems for both on-grid and off-grid applications. It distributes solar energy products and systems, such as PV panels, solar regulators, solar charge controllers, inverters, solar-powered lighting systems, solar-powered water pumps, solar panel mounting hardware, and other system components. The company was founded in 2000 and is headquartered in Framingham, Massachusetts.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Unocal Corporation | |
| 2 | Navitas Semiconductor |