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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 3.7
CAF provides residential service, educational and vocational programs to clients with autism.
Zippia score 4.7
The West Contra Costa Unified School District is the school district for western Contra Costa County, California.
Zippia score 4.3
Refractories, Refractory Project Management, Industrial Refractory, Refractory Services, Reheat, Walking Beam, Reactor, Regenerator, Circulating fluidized bed, Fire Brick, Abrasion Lining
Zippia score 4.2
Terra Millennium Corporation provides industrial services to refining, power, industrial metal, mineral processing, petrochemical, and steel customers in North America and internationally. The company offers project management, general industrial plant maintenance, boiler installation and maintenance, windmill construction and maintenance, solar power plants construction and maintenance, industrial facilities maintenance and turnaround, structural steel fabrication and erection, industrial and municipal wastewater construction, welding and repair, civil construction, heavy metals filtration system, and bulk materials handling services. It also provides capital project construction, dismantlement, and field installation services; heavy rigging, equipment removal, and installation services; and industrial piping fitting, installation, and welding services. The company was founded in 1987 and is based in Richmond, California.
Zippia score 4.1
Universal Building Services And Supply Company provides building maintenance services in northern and central California. It offers cleaning and sweeping services for commercial facilities, such as business offices, bank branches, churches, schools, food and beverage processing facilities, biotechnology laboratories, electronics research and development plants and their clean rooms, chemical production facilities, governmental offices, computer software and hardware companies, and manufacturing facilities. The company also cleans parking lots and streets. In addition, it distributes paper products, such as dinner napkins and placements, roll and paper towels, toilet tissues, seat covers, and feminine hygiene products; and maintenance chemicals, including floor and carpet care, general purpose cleaning, food service, sport floor system, disinfectant cleaning, restroom care, odor control, skin care, and window cleaning supplies. Further, the company sells building maintenance equipment and machinery, such as floor mats, washroom accessories, toilet partitions, brooms and brushes, floor pads, hand pads, floor maintenance equipment, mopping equipment, and waste receptacles. Furthermore, it offers window washing, floor care, carpet shampooing, and construction clean-up services. Universal Building Services And Supply Company was founded in 1963 and is based in Richmond, California.
Zippia score 4.4
Sangamo Therapeutics is a clinical-stage biotechnology company that translates ground-breaking science into genomic therapies transforming patients' lives using platform technologies in genome editing, gene therapy, gene regulation and cell therapy. The company's product pipeline includes Hemophilia, Central Nervous System, HIV, Lysosomal Storage Disorders, and Hemoglobinopathies.
Zippia score 4.0
To create opportunities and maximize profitable returns for our three major stakeholders; team members, customers, and suppliers. Our success will always be tied to increasing value for these core groups.
Zippia score 3.8
To enhancing physical and emotional wellness for all of our patients.
Zippia score 3.8
Urban Remedy is a plant-based organic food company that embodies the belief that Food is Healing. We empower consumers to conveniently eat ultra-fresh and clean. All of Urban Remedy's ready-to-eat meals, snacks and cold-pressed juices are certified organic, non-GMO Project Verified, gluten free, and low glycemic. Urban Remedy ships directly to customers nationally from its headquarters in Point Richmond, CA and operates 17 retail locations and over 100 grocery kiosks across northern and southern California. Urban Remedy is a certified B corporation. Learn more at www.urbanremedy.com
Zippia score 3.3
Overaa Construction is an American family-owned construction company based in Richmond, California, which provides general contracting and design/build services in Northern California.
Zippia score 4.2
Bay City Mechanical, Inc. was founded in Richmond, CA in 1991. BCM offers a full range of mechanical services including Design & Build Engineering.
Zippia score 3.0
We handcraft our delectable desserts from quality, all natural ingredients and help rebuild lives by employing, training and supporting people needing a second chance.
Zippia score 4.0
n a world where the industrialized food system has led us down a tangled path, where food choices have been reduced to the lesser-of-evils, and where distrust reigns, we are the champions of the greater good. Tireless seekers of pure and delicious foods that will nourish our bodies and our planet, we have devoted ourselves to a dream, a vision, a mission. We will revolutionize the way the world eats! And in so doing we will bring nourishment and balance, health and well being, sustainability and community to people and planet. We know change is hard but we want to make it easy. We went out looking for the kind of foods that packed a powerful amount of nutrition into every bite, so that you could make small changes to big effect.
Zippia score 3.6
Ekso Bionics is committed to applying the latest technology and engineering to help people rethink current physical limitations and achieve the remarkable. Originally Berkeley Bionics, Ekso Bionics was founded in Berkeley, California in 2005. Since inception Ekso Bionics has forged partnerships with world-class institutions like UC Berkeley, received research grants from the Department of Defense and licensed technology to the Lockheed Martin Corporation. Today Ekso Bionics continues to pioneer the field of exoskeletons, designing and creating some of the most forward-thinking and innovative solutions for people looking to augment human mobility and capability.
Zippia score 3.3
BioAge develops a pipeline of treatments to extend healthy lifespan by targeting the molecular causes of aging by using its discovery platform, which combines quantitative analysis of proprietary longitudinal human samples with detailed health records tracking individuals over the lifespan, to map out the key molecular pathways that impact healthy human aging.
Zippia score 4.0
To be the leading manufacturer of innovative, high-quality photonic components and integrated solutions for the fiberoptics industry.
Zippia score 3.6
DEEP ROOTS, WIDE WORLD: The Launch of a New Era. Join us in supporting the young artists of Richmond and their development as artist-leaders who embrace both art and a re-imagining of their communities; are recognized for their unique perspective, crea...
Zippia score 3.9
Richmond Art Center is a nonprofit arts organization based in Richmond, California, founded in 1936.
Zippia score 4.1
MBA Polymers, Inc. (MBA) was founded in 1994 by Dr. Michael Biddle and Mr. Trip Allen, to expand the research capabilities in the area of plastics recycling, and to develop a commercial process for recovering plastics from complex streams of materials. After over six years of research and development, MBA is now considered a world leader at developing technology for the recovery of high value engineering plastics from complex durable goods streams such as computers, electronics, appliances, and automobiles. The company, located in Richmond, CA, operates a 90,000 foot state-of-the-art research and commercial recycling operation.
Zippia score 4.1
Rubicon finds support that's right for each individual, enabling them to overcome life's twists and turns and continue on the path of a healthy, productive life.
Zippia score 4.1
Allied Universal provides unparalleled service, systems, and solutions to serve, secure, and care for the people and businesses in their communities. Their relationships with their employees and clients are at the heart of everything they do, each and every day. This dependable company offers security services, security systems, janitorial and staffing services.
Zippia score 4.7
For more than 60 years, Kaiser Permanente has been delivering high-quality, affordable health care and to improve the health of their members and the communities they serve. Headquartered in Oakland, California, they serve 11. 8 million members in eight states and the District of Columbia. Care for members and patients is focused on their total health and guided by their personal physicians, specialists and team of caregivers.
Zippia score 4.7
The United States Social Security Administration is an independent agency of the US federal government that administers Social Security, a social insurance program consisting of retirement, disability and survivor benefits.
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 4.0
Here at IHOP , we want you to think of our table as your family table. Create new memories and enjoy the foods you love with the people you love - we'll take care of the cooking. We're happy to be the ones to serve you. Hope to see you soon! Visit us http://restaurants.ihop.com/ca/santa-ana/955/
Zippia score 4.5
With a unique combination of infection protection and contamination control products and services, STERIS Corporation offers customized solutions for a variety of environments. Our offering includes: Sterile Processing Solutions, Surgical Equipment, Labor.
Zippia score 4.6
General Services Administration is a government institution that manages and supports the basic functioning of the federal agencies. It provides workplaces by constructing, managing, and preserving government buildings, and by leasing and managing commercial real estate. GSA's business lines include the federal acquisition service and the public buildings service. Other divisions include the Office of Government-wide Policy and various staff offices, including the Office of Small Business Utilization, the Office of Civil Rights, and the Office of Citizen Services and Communications. The institution was founded in 1949 and is headquartered in Washington, District Of Columbia.
Zippia score 4.4
Party City Corporation is America's largest retailer of Halloween costumes, theme party supplies, birthday decorations, and other specialty party supplies, operating more than 600 company-owned and franchise stores throughout the United States and Puerto Rico. As part of the Amscan Holdings, Inc., (AHI), group of companies, Party City is among the more than 900 specialty party stores that AHI either owns, operates or franchises.
Zippia score 4.0
The Kemper family of companies is one of the nation's leading insurers. With $8 billion in assets, Kemper is improving the world of insurance by offering personalized solutions for individuals, families and businesses. Kemper's businesses collectively: - Offer insurance for home, auto, life, health and valuables - Service six million policies - Are represented by more than 20,000 independent agents and brokers - Employ 6,000 associates dedicated to providing exceptional service - Are licensed to sell insurance in 50 states and the District of Columbia
Zippia score 4.1
AmeriGas is the nation's largest propane company, serving over 2 million customers locally in all 50 states from over 2,500 distribution locations. AmeriGas is the nation's largest propane company, serving over 2 million customers locally in all 50 states from over 1,200 locations. Our mission is to be the most reliable, the safest and the most responsive propane company in the United States.
Zippia score 4.0
UTLX Company consists of three Marmon sectors - Rail Products & Services, Engineered Products, and Crane Services, as well as EXSIF Worldwide, the world's largest lessor of intermodal tank containers. Marmon Rail Products & Services includes Union Tank Car Company and Procor, full-service providers of railroad tank cars throughout North America, and other businesses primarily serving the transportation, energy, chemical, and related markets.
Zippia score 4.5
Public Storage built its first self-storage facility in 1972. Today it operates over 2,200 unique and diverse company-owned locations in the United States and Europe, totaling more than 142 million net rentable square feet of real estate. Its PS Business Parks interest adds another 28 million(approx.) rentable square feet of commercial and industrial space. Based on number of tenants, Public Storage is among the largest landlords in the world.
Zippia score 4.6
Coherent was founded in May of 1966. As it was for most companies starting out in the mid-60's, the company's start was modest. With limited financial resources, Coherent established its headquarters in the Palo Alto, CA home of one of its founders. At that time, the most pressing need was for a 220-volt power outlet, which forced Coherent's brain trust to build their first laser in a laundry room. In the summer of 1966, next to a washer and dryer, and using a piece of rain gutter as a key component, Coherent's founders began building their first laser. Four months later, Coherent unveiled the very first CO2 commercially available laser. Today, Coherent is one of the world's leading photonics manufacturers and innovators. With headquarters in the heart of Silicon Valley, California, and offices spanning the globe, Coherent offers a unique and distinct product portfolio that touches many different markets and industries.
Zippia score 4.8
Crowley Maritime Corporation is a U. S.-owned and operated marine solutions, transportation and logistics company that provides services through six operating lines of business: Puerto Rico/Caribbean liner services; Latin America liner services; logistics; marine contract solutions; deep sea petroleum transportation; and petroleum transportation, distribution and sales in Alaska. Founded in 1892, Crowley is wholly and privately owned by the Crowley family and Crowley employees. Crowley is based in Jacksonville, FL, and has locations worldwide.
Zippia score 4.7
Alliant Insurance Services, Inc. offers insurance brokerage services. It distributes diversified insurance products and services to clients in the United States. The company provides insurance products to automotive parts manufacturers, distributors, retailers, and installers; construction contractors; energy and marine companies; healthcare organizations; law firms; life sciences and medical products companies; nonprofits and land trusts; parking and valet companies; public sector clients; real estate investors, managers, and developers; lodging and restaurant industries; tribal nations; technology and biotech companies; and waste hauling and recycling companies. It also offers business services, such as risk control consulting and property valuation. The company was founded in 1925 and is based in Newport Beach, California.
Zippia score 4.5
Performance Contracting Group, Inc. is one of the leading companies in the construction and engineering industry providing interior, insulation, and specialty contracting services to industrial, commercial, and non-residential markets in the United States. Performance Contracting Group, Inc was incorporated in 1985 and is based in Lenexa, Kansas with additional offices in the country.
Zippia score 4.5
Based in Seattle, Washington, Foss offers a complete range of maritime transportation and logistics services. Whether it's solving transportation challenges in remote parts of the world or efficiently handling everyday harbor jobs, Foss prides itself on always offering customers safe and innovative solutions. For more than a century, Foss Maritime has set the standard for marine transportation with leading edge technology, engineering, and shipbuilding. Combining global reach with local expertise, Foss is recognized for its state-of-the-art fleet, experienced and dedicated crews, knowledgeable customer service staff, and world-class engineers. Along with our independent subsidiaries the company employs thousands of people throughout the United States. With hundreds of tugs and barges we provide harbor services and transportation operations in all major U.S. West Coast ports - including the Columbia and Snake River system. Internationally, Foss supports customers across the Pacific Rim, in Europe, South America and the Arctic. Every day, our tugboats, barges and people are at work helping our customers succeed in a competitive and challenging market. With a company-wide commitment to safety and the environment, our seasoned crews and staff provide our customers with safe, reliable service to get the job done right. In addition to transportation and maritime logistics, Foss also provides engineering and shipbuilding services. The company's mobile response repair service can send a team of maritime engineers to service vessels anywhere in North America within 24 hours. With two full-service shipyards and an expert marine engineering group, Foss helps customers throughout the entire life cycle of a project, which includes analyzing vessel and equipment requirements for a specific job, to designing a new build or vessel modification through to production and proper outfitting of the vessel. Foss Maritime Company is wholly owned by Saltchuk Resources, a privately owned family investment company formed in 1982 and based in the Pacific Northwest. Saltchuk has over $2 billion of assets invested in numerous operating companies in several different business groups, including deep water shipping logistics, ship management, tug and barge operations, fuel distribution, and trucking. Foss regularly partners with its sister companies in the Saltchuk portfolio to offer a diverse range of maritime transportation services.
Zippia score 4.2
We have over 50 years of experience providing the services, installation, and logistic needs of our customers.
Zippia score 4.2
Blue Apron is a New York-based start-up that is changing the way people cook at home. Blue Apron's weekly subscription service delivers everything you need to make fresh meals, including shopping for its customers at wholesale and delivering all the ingredients in specific proportions, along with printed recipe cards. The model aims to emulate having your own private chef-- subscribers will discover new recipes, eat fresher food, and save both time and money.
Zippia score 4.5
SunPower Corporation is a public company headquartered in San Jose, California.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | California Autism Foundation | |
| 2 | West Contra Costa Unified School District | |
| 3 | JTThorpe | |
| 4 | Terra Millennium | |
| 5 | Universal Building Service | |
| 6 | Sangamo Therapeutics | |
| 7 | Bay Area Beverage | |
| 8 | Shields Nursing Centers | |
| 9 | Urban Remedy | |
| 10 | Overaa Construction | |
| 11 | Bay City Mechanical | |
| 12 | Rubicon Bakers | |
| 13 | Nutiva | |
| 14 | Ekso Bionics | |
| 15 | BioAge | |
| 16 | DiCon Fiberoptics | |
| 17 | East Bay Center for the Performing Arts | |
| 18 | Richmond Art Center | |
| 19 | MBA Polymers | |
| 20 | Rubicon Programs |