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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 4.2
A leading company in the commercial services and supplies industry, Encore Receivable Management, Inc. provides cutting-edge collections management solutions. It offers pre charge-off account management and primary post charge-off management services. Incorporated in 1999 and based in Olathe, Kansas, Encore Receivable Management, Inc. serves wireline, wireless, and cable communications service providers; banks; credit card, auto, and installment lenders; and more.
Zippia score 4.6
Lam Research Corporation is an American corporation that engages in the design, manufacture, marketing, and service of semiconductor processing equipment used in the fabrication of integrated circuits. Its products are used primarily in front-end wafer processing, which involves the steps that create the active components of semiconductor devices (transistors, capacitors) and their wiring (interconnects).
Zippia score 3.9
Hyve Solutions partners with you to collaboratively design and deploy energy-efficient rack-level server, storage and networking solutions that are cost-effective and purpose-built to actual workloads and large scale data center environments. They develop customized solutions that best fit your unique mix of performance and operational and logistics cost requirements. As experts in New Product Introductions, they're equipped to handle the entire process from Consultation, Design, Engineering, Supply Chain, Mass Production, Logistics and Support - all tailored specifically to you. In short, everything you need. Nothing more and nothing less. As a Platinum OCP Solutions Provider, they play a very unique role in the Open Compute Project and are the final integration point for Open Compute Servers, delivering fully racked and tested solutions to Facebook datacenters around the globe. Headquartered in Fremont, California, Hyve Solutions fuses the agility of a focused, efficiently-structured organization with the scale required to support the world's biggest customers.
Zippia score 4.2
Laiki, Inc. is a stealth mode company.
Zippia score 3.8
PetersenDean has been serving the Fremont, California community for several years now. This privately owned and operated company specializes in roofing and solar systems, roofing solar, roof solar energy storage, backup battery, fences, and Solar 4 America among, others. Petersen Dean is the number one home improvement contractor in the country.
Zippia score 4.2
Microgenics Corporation develops, manufactures, and markets immunodiagnostic tests for drugs of abuse testing, therapeutic drug monitoring, calibration and linearity verification, and controls. The company offers CEDIA immunoassays; DRI products, including liquid and ready-to-use reagents; MAS control products for serum/urine chemistries, immunoassay, cardiac and whole blood, immunology/protein, and toxicology; CASCO calibration verification standards, controls, and data reduction services for quality control; and duke scientific products. Microgenics Corporation was founded in 1986 and is headquartered in Fremont, California. Microgenics Corporation operates as a subsidiary of Thermo Fisher Scientific Germany BV & Co. KG.
Zippia score 3.8
Broadband Forum is a central organization that drives broadband wireline solutions empowering converged packet networks worldwide. The company develops multi-service broadband packet networking specifications that address interoperability, architecture, and management. Broadband Forum is based in Fremont, California.
Zippia score 3.8
Oplink Connected, a division of Oplink Communications, Inc. (NASDAQ: OPLK), has revolutionized the home security industry with a wireless, plug and play platform that is controlled through an easy to use smartphone app. Their solutions enable everyone to have the peace of mind and protection that comes from a home security system. The heart of the Oplink Connected system is the Oplink Cloud, and advanced cloud computing architecture that enables safe, reliable, secure communication between you and your home - no matter where you are. This technology provides true plug and play functionality, and can be installed by just about anyone in around 15 minutes. These unique differentiators eliminate the need for professional installation and long-term service contracts, enabling Oplink to offer a powerful yet affordable home security system without the cost, complexity, and commitment required by cable providers, phone companies, and big-brand alarm companies.
Zippia score 4.1
Asteelflash is an international Electronic Manufacturing Services (EMS) provider.
Zippia score 3.9
BizLink, founded in 1996, is headquartered in Silicon Valley, USA. Their very first products were IT industry power cord sets. By developing reliable interconnect solutions for diversified customers, BizLink established itself as a trusted supplier. Since then, BizLink has become more diverse by providing essential components, harnesses and cables to industries such as IT and CE, motor vehicle, electrical appliances, medical equipment, industrial, optical fiber communication, and solar. Their mission is to make interconnection easier and to become the leading global interconnect solution provider. They support industries that are environmentally conscious and improve quality of life through innovative products and services. As a tier-one interconnect solution company, BizLink has state-of-the-art facilities, advanced manufacturing processes, and professional research and development capabilities. Their fully vertically integrated business model includes manufacturing sites in the United States, Mexico, Slovakia, Serbia, China and Malaysia for seamless integration into their customers' supply chains. They strive to provide attentive and responsive customer support to each customer's unique situation. Their global engineering and service teams in America, Europe, and Asia collaborate closely with customers to turn their innovative designs into reality.
Zippia score 4.4
New United Motor Manufacturing, Inc. manufactures cars and trucks in the United States. The company was founded in 1983 and is based in Fremont, California. New United Motor Manufacturing, Inc. operates as a subsidiary of Tesla Motors, Inc.
Zippia score 4.0
Oplink Communications, LLC., a Molex company, is a leading provider of optical communication components, intelligent modules and subsystems. The company offers integrated design and manufacturing solutions to global leading and emerging network equipment makers serving multiple addressable infrastructure markets of metro and long-haul transport and aggregation, wireless traffic hauling, data center networking, and cable TV. Oplink's broad product portfolio features advanced solutions covering next-generation reconfigurable optical add-drop multiplexer (ROADM), wavelength selective switch (WSS), multicast switch, dense and coarse wavelength division multiplexing (“DWDM” and “CWDM,” respectively), optical amplification, signal switching and routing, signal conditioning and monitoring, and fiber interconnect/termination/distribution, as well as a full suite of optical transceivers supporting data rates up to 100Gbps. Oplink is headquartered in Fremont, California and owns multiple research and manufacturing facilities in Asia.
Zippia score 3.7
Sonic Manufacturing has the largest EMS production floor in Silicon Valley, with the latest technologies, engineering support and robust materials management. PCB's, electronic assembly, cable builds and more. Contact Sonic today.
Zippia score 4.2
Opnext is a leading designer and manufacturer of optical modules and components which enable high-speed telecommunications and data communications networks globally. Their transceiver modules, which typically utilize our lasers and detectors, convert signals between electrical and optical for transmitting and receiving data over fiber optic networks, a critical function in optical communications equipment.
Zippia score 3.9
IT-SCIENT is a Leading US information technology, consulting and outsourcing company. We are in the business of helping IT organizations operate more productively and profitably through a full spectrum of specialized staffing and project implementation products and services. We ensure the highest levels of certainty and satisfaction through a deep-se t commitment to our clients. We specialize in the areas of Systems Integration/EAI, ERP Functionality Extension, Business/Data Warehousing, Sales Force Automation/CRM, Middleware Functionality Templates, and Custom Application Development for vertical markets including telecommunications, healthcare, financial services, insurance, and energy. We deliver qualified consultants and project managers for both contract and ongoing requirements across all science and technology disciplines.
Zippia score 3.9
Royole Corporation is a developer of proprietary flexible technology designed to produce fully flexible displays (FFD) and sensors (FFS), and a full range of next-generation human-machine interface products, including foldable smartphones and other smart devices.
Zippia score 3.6
Since 1999, Loctek Has Been Producing Innovative Solutions To Improve The Safety, Functionality And The Convenience Of Av Peripherals. Loctek Is Committted To Providing Ideal Ergonomic Solutions For Home And Office. Health, Safety And Well-Being Are Their Top Priorities. Starting With Just A Few Well-Crafted Products, Loctek Launched Its First Product Line 16 Years Ago And Quickly Became Known For Its Durable, Well-Designed Tv Mounts. The Company Has Since Emerged As The Market-Leading Manufacturer Of Mounts For Plasma, Lcd And Led Tvs. Loctek Has Also Become One Of The World'S Top Brands For Computer Monitor Mounts. Thoughtful Research, Bold Innovation And Exceptional Production Standards Have Made Loctek A Worldwide Industry Leader.
Zippia score 4.2
& harness interconnect products, PCBA, full box build assemblies and aftermarket repair and fulfillment services. The companies that form NEO Tech have been known for solving tough engineering problems that result in high-reliability, high-quality electronics for customers. Headquartered in Chatsworth, CA, NEO Tech has manufacturing and engineering locations in California, Colorado, Illinois, Massachusetts, Nevada, Ohio, Tennessee, Mexico, and China. NEO Tech holds and maintains industry specific certifications that include: ISO9001 AS9100 ISO13485 ISO/TS16949 ISO14001 MIL-PRF-38534.
Zippia score 4.3
Since 1989, MC Assembly, majority owned by Cyprium Investment Partners, has been a provider of full turnkey contract manufacturing services. The primary services offered by MC Assembly include: new product introduction, printed circuit board assembly, box build/integration, engineering support services, and test development. Today, the company has approximately 1,200 associates in its headquarters site in Melbourne, FL, as well as locations in Billerica, Massachusetts and Zacatecas, Mexico.
Zippia score 4.2
To delight customers by developing differentiated solutions at pace that improve patient vitality and help lower the cost of care.
Zippia score 4.7
EY is a global leader in assurance, tax, transaction and advisory services. The insights and quality services EY delivers helps build trust and confidence in the capital markets and in economies the world over. EY develops outstanding leaders who team to deliver on their promises to all of their stakeholders. In so doing, EY play a critical role in building a better working world for their people, for their clients and for their communities. EY refers to the global organization and may refer to one or more of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients. EY's 190,000 people are the foundation of EY's success. EY assembles the right multi-disciplinary team for your business, drawing on their global network of professionals. Working with you in a collaborative style, EY gains a clear understanding of your organisation and strive to identify issues before they become problems. You get the people you need, wherever in the world you need them, backed up by leading practices, methodologies and tools.
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 4.5
Jabil (NYSE: JBL) is a manufacturing solutions provider that delivers comprehensive design, manufacturing, supply chain and product management services. Leveraging the power of over 200,000 people across 100 sites strategically located around the world, Jabil simplifies complexity and delivers value in a broad range of industries, enabling innovation, growth and customer success.
Zippia score 4.3
Tech Mahindra Limited is an Indian multinational subsidiary of the Mahindra Group, providing information technology services and business process outsourcing to companies in various vertical and horizontal markets.
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
Kohl's Corporation (Kohl's) operate family-oriented department stores that sell apparel, footwear and accessories for women, men and children; soft home products, such as sheets and pillows, and housewares. Kohl's apparel and home fashions appeal to classic, modern classic and contemporary customers. As of January 28, 2012, the Company operated 1,127 stores in 49 states. In addition, Kohl's offers on-line shopping on its Website at www.Kohls.com. Originally designed as an added service for customers who prefer to shop using the Internet, the Website include a selection of items and categories beyond what is available in stores, with a primary focus on sizes, product line extensions, and Web-exclusive product lines. Only at Kohl's is a brand of the Company. In March 2012, the Company opened eight new stores. In March 2013, it announced the openings of nine new stores, bringing the Company's store count to 1,155 stores.
Zippia score 4.6
Tesla Motors was started by a group of Silicon Valley entrepreneurs and strives to create a revolution and accelerate the world's transition to electric mobility with a full range of increasingly affordable electric cars. Tesla vehicles are EVs (electric vehicles), which are transforming the way people drive and move. Tesla has gone public as of June 29, 2010 and has a market cap of $34.32 billion. Tesla Motors' goal is to increase the number and variety of EVs through three strategies. The first is to sell its own branded vehicle through its showrooms. Second is to sell premium, high-quality, patented electric components to other automakers. Lastly, it serves as a “catalyst and positive example to other automakers.” There has already been a movement in the EV market with the push of the GM Volt, rumored to have been inspired by the Tesla Roadster.
Zippia score 4.4
Universal Health Services, Inc. (UHS) is one of the nation's largest and most respected healthcare management companies, operating through its subsidiaries acute care hospitals, behavioral health facilities and ambulatory centers nationwide, in Puerto Rico and the U.S. Virgin Islands. Founded in 1978 by Alan B. Miller, Chairman and CEO, UHS subsidiaries employ more than 60,000 individuals. UHS maintains one of the strongest balance sheets in the industry and is rated investment grade by Moody's, Standard & Poor's and Fitch. This strong capital position has enabled the company to develop and acquire many new facilities over the past few years.
Zippia score 4.6
Danaher Corporation (Danaher) designs, manufactures and markets professional, medical, industrial and commercial products and services. The Company's research and development, manufacturing, sales, distribution, service and administrative facilities are located in more than 50 countries. It operates in five segments: Test & Measurement; Environmental; Life Sciences & Diagnostics; Dental; and Industrial Technologies. In April 2011, the Company sold its Pacific Scientific Aerospace (PSA) business. On June 30, 2011, the Company acquired Beckman Coulter, Inc. (Beckman Coulter). In January 2012, the Company sold its Accu-Sort businesses. In February 2012, the Company sold its Kollmorgen Electro-Optical (KEO) business. During the year ended December 31, 2011, the Company acquired EskoArtwork, On February 6, 2012, L-3 Communications Holdings, Inc. acquired Kollmorgen Electro-Optical unit of the Company.
Zippia score 4.8
Facebook is an online social networking service that allows its users to connect with friends and family as well as make new connections. It provides its users with the ability to create a profile, update information, add images, send friend requests, and accept requests from other users. Its features include status update, photo tagging and sharing, and more. Facebook's profile structure includes a timeline, information related to the user, images of the user, images added by friends of the user, notes, pages, groups, and more. It enables its users to create pages related to entertainment, sports, business, finance, preferences, hobbies, culture, religion, causes, organizations, and a number of other categories. It also enables its users to join or create groups related to a vast number of categories. With millions of more users, Friendster attempted to acquire the company for $10 million in mid-2004. Facebook turned down the offer and subsequently received $12.7 million in funding from Accel Partners at a valuation of around $100 million. Facebook continued to grow opening up to high school students in September 2005 and adding a photo sharing feature the next month. The next spring, Facebook received $25 million in funding from Greylock Partners and Meritech Capital as well as previous investors Accel Partners and Peter Thiel . The pre-money valuation for this deal was about $525 million. Facebook subsequently opened up to work networks eventually amassing over 20,000 work networks. Finally in September 2006, Facebook was opened to anyone with an email address. Facebook continued to receive funding most notably in January 2011 receiving $1.5 billion and valuing the company at $50 billion. A year later in February 2012, Facebook announced that it was filing for its long-anticipated initial public offering. The company went public on May 18, 2012 opening in NASDAQ with shares trading at $42.05. Facebook announced positive numbers in February 2012 upon filing for its IPO. As of July 2013 over 1.15 billion users have logged into Facebook every month and 669 million users daily. Mobile users now make up half of Facebook's user base with 819 million monthly actives. Facebook is one of the most trafficked sites in the United States. Additionally, Facebook is the top photo sharing site with 250 million photos uploaded per day. The company has strategic partnership with AXA Group to develop marketing and commercial collaboration in the digital, social, and mobile sphere. Facebook is currently the owner of many applications and services such as Pagemodo Pagebuilder, RSS Graffiti , Huddle, and more. It is the world's largest social network with over 1.32 billion monthly active users. Facebook was founded by Mark Zuckerberg on February 4, 2004 in Menlo Park, California.
Zippia score 4.8
Air Liquide SA, is a French multinational company which supplies industrial gases and services to various industries including medical, chemical and electronic manufacturers.
Zippia score 4.4
Western Digital Corporation develops, manufactures, and sells data storage devices and solutions worldwide. It offers its customers hard disk drives (HDDs) and solid state drives (SSDs), flash-based embedded storage products for computing devices, such as desktop and notebook PCs, security surveillance systems, gaming consoles, and set top boxes, and other products. Western Digital solutions are marketed under the G-Technology(r), HGST, SanDisk(r), Tegile(r), Upthere(r) and WD(r) brands. The company was founded in 1970 and is headquartered in San Jose, California.
Zippia score 4.8
Sutter Health is a not-for-profit health system in Northern California that delivers top-rated, affordable healthcare. Headquartered in Sacramento, California, this institution has doctors, hospitals and other health care services in more than 100 Northern California cities and towns. Major service lines of Sutter Health affiliated hospitals include cardiac care, women's and children's services, cancer care, orthopedics and advanced patient safety technology.
Zippia score 4.6
CH Boehringer Sohn AG & Ko. KG is the parent company of the Boehringer Ingelheim group, which was founded in 1885 by Albert Boehringer in Ingelheim am Rhein, Germany.
Zippia score 4.4
Eurofins is an international group of laboratories headquartered in Luxembourg, providing testing and support services to the pharmaceutical, food, environmental, agriscience and consumer products industries and to governments.
Zippia score 4.0
Molex is a leading one-source supplier of interconnect products. Their team of highly skilled experts is focused on the design, development and distribution of innovative product solutions that touch virtually every walk of life. Their portfolio is among the world's most extensive, with over 100,000 reliable products, including everything from electronic, electrical and fiber optic interconnects to switches and application tooling.
Zippia score 4.4
XPO Logistics, established in 1989 in Greenwich, CT, is a top ten global logistics company that provides transportation and logistics services in the United States, North America, France, the United Kingdom, Spain, Europe, Asia, and internationally. The company has a staff of about 97,000 wordlwide that offer services to customers in various industries, such as retail, e-commerce, food and beverage, manufacturing, technology and telecommunications, aerospace and defense, life sciences, healthcare, medical equipment, and agriculture. Some of the most successful companies they serve include Disney, Pepsi, L'Oreal, Toyota and many other.
Zippia score 4.7
Stryker is one of the world’s leading medical technology companies and, together with our customers, is driven to make healthcare better. We offer innovative products and services in Orthopaedics, Medical and Surgical, and Neurotechnology and Spine that help improve patient and hospital outcomes.
Zippia score 4.9
Learn all about Novo Nordisk in the U.S. and how we're helping to defeat diabetes, rare bleeding disorders, growth hormone-related disorders, and obesity.
Zippia score 4.5
Qualcomm designs, develops, manufactures, and markets digital communication products worldwide. Qualcomm pioneered 3G and 4G and now the company is leading the way to 5G. The company works in multiple industries from automotive and IoT to healthcare and security. Currently Qualcomm focuses on a single goal--invent mobile technology breakthroughs. The company was founded in 1985 and is headquartered in San Diego, California.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | SYNNEX | |
| 2 | Lam Research | |
| 3 | Hyve Solutions | |
| 4 | Laiki | |
| 5 | PetersenDean | |
| 6 | Microgenics Corporation | |
| 7 | Broadband Forum | |
| 8 | Oplink Connected | |
| 9 | AsteelFlash | |
| 10 | BizLink Group | |
| 11 | New United Motor Manufacturing Inc | |
| 12 | Oplink Communications | |
| 13 | Sonic Manufacturing Technologies | |
| 14 | Opnext | |
| 15 | IT Scient | |
| 16 | Royole | |
| 17 | Loctek | |
| 18 | NEOTech | |
| 19 | SMTC | |
| 20 | Cordis |