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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 4.5
Gilead Sciences, Inc. is a research-based biopharmaceutical company focused on the discovery, development, and commercialization of innovative medicines.
Zippia score 4.6
Explore the new generation PlayStation 4 and PS5 consoles - experience immersive gaming with thousands of hit games in every genre to rewrite the rules for what a PlayStation console can do.
Zippia score 4.8
Explore the new generation PlayStation 4 and PS5 consoles - experience immersive gaming with thousands of hit games in every genre to rewrite the rules for what a PlayStation console can do.
Zippia score 4.8
The Qualys Cloud Platform and integrated suite of solutions helps businesses simplify security operations and lower the cost of compliance by delivering critical security intelligence on demand and automating the full spectrum of auditing, compliance and protection for IT systems and web applications. Used by more than 7,700 customers in over 100 countries, including a majority of each of the Forbes Global 100 and Fortune 100, the Qualys Cloud Platform performs more than 1 billion IP scans/audits a year resulting in over 400 billion security events. Founded in 1999, Qualys has established strategic partnerships with leading managed service providers and consulting organizations including BT, Dell SecureWorks, Fujitsu, IBM, NTT, Symantec, Verizon, and Wipro. The company is also a founding member of the Cloud Security Alliance (CSA). The Qualys Cloud Platform and its integrated suite of security and compliance applications provides organizations of all sizes with a global view of their security and compliance solutions, while drastically reducing their total cost of ownership. Qualys solutions include: continuous monitoring, vulnerability management, policy compliance, pci compliance, questionnaire service, web application scanning, web application firewall, malware detection and SECURE Seal for security testing of web sites.
Zippia score 3.4
Zoox is a California based robotics company founded by Tim Kentley-Klay and Dr. Jesse Levinson to create autonomous mobility. Operating at the intersection of design, computer science, and electro-mechanical engineering, Zoox is a multidisciplinary team working to imagine and build an advanced mobility experience that will support the future needs of urban mobility for both people and the environment.
Zippia score 4.1
Xerago is a multi-national Customer Value Maximization company with offices in San Francisco Bay Area, Singapore, Hong Kong, Dubai and Mumbai. Xerago works with organizations where customer revenues are spread over the lifetime of the relationship, such as Retail Banks, Insurance, Telco, Retailers, ECommerce, Hospitality and High Technology companies, to name a few. Xerago's mission is to help organizations drive continuous, ongoing value from their customers. We call this Customer Value Maximization. Xerago does this by operating at the confluence of analytics, technology and communication. Xerago operates on a Platform and a Service Delivery model. Xerago is proud to be contributing to the business growth of some of the largest brands in the world.
Zippia score 4.9
QuinStreet uses the internet to connect companies with potential customers. The online performance marketing company helps businesses target their would-be customer audiences by using its proprietary technologies and media reach to generate sales leads. As a sign of confidence in its quality, QuinStreet has adopted a pay-for-performance model of pricing. Founded in 1999, QuinStreet is headquartered in Foster City, California, with satellite offices worldwide and 500 employees.
Zippia score 4.0
SciClone Pharmaceuticals, Inc. (SciClone ) is a global specialty pharmaceutical company. It has a product portfolio of therapies for cancer and infectious diseases. SciClone has in-licensed two products that are part of this international commercial growth strategy, DC Bead and ondansetron RapidFilm. Its DC Bead product candidate is a treatment for liver cancer, which is approved in 40 countries worldwide, including Europe and the United States. Ondansetron RapidFilm is an oral thin film formulation of ondansetron used to treat and prevent nausea and vomiting caused by chemotherapy, radiotherapy and surgery. SCV-07 is being developed for the delay of onset of severe oral mucositis in patients receiving chemoradiation therapy for the treatment of cancers of the head and neck and for the treatment of hepatitis C virus (HCV). Thymalfasin is being developed in an ongoing clinical trial for improvement of Influenza A (H1N1) vaccination.
Zippia score 4.3
Legacy Partners (Legacy), a privately held real estate firm founded in 1968 and headquartered in the San Francisco Bay Area, owns, develops and manages multifamily communities throughout the United States. Legacy has regional offices in California, Colorado, Florida, Texas, and Washington and has developed more than 60,000 apartment homes in Arizona, California, Colorado, Nevada, Oregon, Texas, and Washington. Since inception, Legacy has worked with some of the world’s largest financial institutions, life insurance companies, and real estate companies, consistently delivering exceptional results. Legacy provides management services for its own portfolio, as well as other owners. Combined, Legacy manages a portfolio of over 60 multifamily communities with more than 14,000 apartment homes, and with a gross value in excess of $2 billion. For further information, please visit legacypartners.com.
Zippia score 3.6
Channel Insider is an IT channel offering news, information, and business intelligence for IT solution providers, VARs, MSPs, SAAS providers, resellers, and more. It provides the technology news and industry information that is critical to helping IT solution providers, VARs, consultants, and other channel companies position and grow their businesses. Channel Insider was launched in 2010 and is based in Aurora, Ontario.
Zippia score 3.8
DoveBid, Inc. provides capital asset auction, valuation, redeployment, and management services for corporations, government agencies, and financial institutions worldwide. It offers a portfolio of asset disposition solutions that includes live Webcast auctions, online auctions, sealed bid Internet sales, and private treaty Internet sales. The company also provides appraisal and surplus asset management services, as well as leasing, shipping, and transaction support services. It serves various clients, including biotech, medical, pharmaceutical, chemical and petroleum, computers, peripherals, data processing, construction, mining, farming, consumer electronics, consumer goods and inventory, defense and aerospace, food and beverage, iron and steel, office furnishings and equipment, packaging and converting, plastics and rubber, power and electric, printing, semiconductor fabrication, telecommunications, textile and apparel manufacturing, and woodworking and mills, as well as vehicles, boats, and commercial transportation clients. DoveBid, Inc. was founded in 1937 as Dove Mercantile Co. and changed its name to Ross-Dove Co. Further, Ross-Dove Co. was renamed to DoveBid, Inc. The company is based in Culver City, California.
Zippia score 4.8
Conviva powers every internet-connected screen with the most engaging viewing experiences imaginable by elevating the way OTT businesses use data-driven intelligence. For years, HBO, Sky, Turner, and the like have been using the Conviva Platform to enlighten, reveal and inform with important insights around consumer in-screen viewing experience allowing them to connect those metrics to important business outcomes. This allows customers to not only maximize subscriber retention and growth but also understand content and viewing trends so that they can deliver more personalized viewing experiences. The company makes engagement a data driven outcome based on actionable quality of experience (QoE) analytics. Conviva's software sensors are currently deployed across 2.5 billion devices globally and measure over 1 billion streaming minutes per day of premium video content for publishers such as HBO, Sky, Turner, and more. Conviva is headquartered in Silicon Valley, with offices in New York and London. Conviva is founded by professors from Carnegie Mellon and U.C. Berkeley and backed by NEA, Foundation Capital, and Time Warner Investments.
Zippia score 3.5
To build breakthrough experiences featuring world-class brands and original franchises, superior production quality and unmatched gameplay.
Zippia score 4.1
GridGain Systems is revolutionizing real-time data access and processing by offering an in-memory computing platform built on Apache Ignite™. GridGain solutions are used by global enterprises in financial, software, e-commerce, retail, online business services, healthcare, telecom and other major sectors, with a client list that includes ING, Sberbank, Finastra, IHS Markit, Workday, and Huawei. GridGain delivers unprecedented speed and massive scalability to both legacy and greenfield applications. Deployed on a distributed cluster of commodity servers, GridGain software can reside between the application and data layers (RDBMS, NoSQL and Apache ™ Hadoop ), requiring no rip-and-replace of the existing databases, or it can be deployed as an in-memory transactional SQL database. GridGain is the most comprehensive in-memory computing platform for high-volume ACID transactions, real-time analytics, web-scale applications, continuous learning and HTAP. For more information, visit gridgain.com.
Zippia score 4.5
Sling Media is a technology company that provides multi-screen smart TV solutions for consumers and television operators. It is committed to developing products and solutions that allow people to watch their home TV, including the content they already pay for, anywhere in the world, on any connected device. Sling Media has the ability to turn any Internet connected PC, Mac, phone, or tablet into a home television. The first Slingbox was released in 2005, and in 2007, Sling Media won a Technical Emmy Award for the Slingbox . SlingPlayer, another product of Sling Media, was introduced for Android, iPad, and Windows smartphones in 2010. Sling Media was founded in 2004 and is headquartered in Foster City, C.A.
Zippia score 4.3
WE ARE DRIVEN TO HELP YOU DELIVER INNOVATIVE PRODUCTS Arena is designed to help modern manufacturers speed product development and get innovative products to market fast.
Zippia score 3.4
Build a caring and connected community, develop leadership and strengthen Jewish identity and values in a center with an environment that is welcoming to all people at every stage of life.
Zippia score 4.2
TeraRecon is the largest independent provider and a global leader in advanced image processing innovation for CT, MR and PET, advanced imaging-based decision support and 3D visualization techniques. A 7-time winner of Frost and Sullivan awards, the company has developed a leading portfolio of products and technologies that advance the performance, quality, functionality, and integration of image processing and 3D visualization systems since its founding in 1997. In 2010, TeraRecon was awarded the “Company of the Year” award for European Advanced Visualization Applications, and the “North American Growth Leadership of the Year Award” for Advanced Visualization and Clinical Applications, both by respected independent market research firm Frost and Sullivan. TeraRecon is a privately held company with headquarters in Foster City, California, USA, European headquarters in Frankfurt, Germany, and branch offices in Concord, Massachusetts, USA and Tokyo, Japan.
Zippia score 4.1
Inktomi Corporation was a California-based company that provided software for Internet service providers. It was founded in 1996 by UC Berkeley professor Eric Brewer and graduate student Paul Gauthier. The company was initially founded based on the real-world success of the search engine they developed at the university. After the bursting of the dot-com bubble, Inktomi was acquired by Yahoo .
Zippia score 4.2
Conversica is the leader in Intelligent Virtual Assistants for Customer Engagement. By automating routine business conversations, and personalizing interactions at scale, Conversica augments your workforce allowing business professionals and AI Assistants to work together harmoniously. The flagship Conversica Sales AI Assistant helps companies find and secure customers more quickly and efficiently by automatically contacting, engaging, qualifying, and following-up with leads via natural, multi-channel, two-way conversations. With our large library of purpose-built and ready-to-use conversational skills backed by our patented conversational AI platform, Conversica's AI Assistants can be deployed quickly, are human-like and personal, and provide superior conversational accuracy and autonomy. Reaching out to over 100 million people on behalf of thousands of companies, and with over 375 million engagements, Conversica is a portfolio company of Providence Strategic Growth, Kennet Partners and Toba Capital and is headquartered in Foster City, California, with international offices in Santiago, Chile, and London, UK.
Zippia score 4.7
Accenture is a global management consulting, technology services and outsourcing company, with approximately 204,000 people serving clients in more than 120 countries. Combining unparalleled experience, comprehensive capabilities across all industries and business functions, and extensive research on the world's most successful companies, Accenture collaborates with clients to help them become high-performance businesses and governments.
Zippia score 4.7
& Halske, was founded in 1847 and is headquartered in Munich, Germany. Siemens' principal activities are in the fields of industry, energy, transportation and healthcare. It is organized into five main divisions: Industry, Energy, Healthcare, Infrastructure & Cities, and Siemens Financial Services (SFS). Siemens and its subsidiaries employ approximately 360,000 people across nearly 190 countries and reported global revenue of approximately 73.5 billion euros for the year of 2011. In the industry sector, the company's portfolio ranges from industry automation and drives products and services to building, lighting, and mobility solutions and services, as well as includes system integration and solutions for plant business. It offers automation and drives, industrial solutions and services, transportation systems, Siemens building technologies, and OSRAM lighting solutions. In the energy sector, the company provides various solutions for the generation, transmission, and distribution of power, as well as for the extraction, conversion, and transport of oil and gas in the oil and gas industry. Siemens Energy Service delivers service solutions for gas turbines, steam turbines, generators or wind turbines to increase efficiency, reliability and availability throughout the entire lifecycle. From modernizations and upgrades, remote monitoring, lifetime extensions, and condition monitoring to logistical and turnkey service for onshore and offshore wind turbines, Siemens energy services work to achieve maximum success and efficiency. In the healthcare sector, Siemens develops, manufactures, and markets diagnostic and therapeutic systems, devices, and consumables, as well as offers IT systems for clinical and administrative purposes. Other services include technical maintenance, professional, and consulting services. Siemens AG offers IT solutions and services, primarily information and communications systems. Further, the company provides financial products and services comprising commercial finance, equity and project finance, treasury and investment management, and project and export finance. Siemens AG offers insurance solutions, such as claims management, as well as acts as a broker of company-financed insurances for employees on business trips and foreign assignments. The company has equity investments in Nokia Siemens Networks B.V., a telecommunications infrastructure company; and BSH Bosch und Siemens Hausgerate GmbH, a household appliance producer.
Zippia score 4.7
Industrial Solutions, Inc. is an insulation, scaffold, coatings, and general labor company that provides a variety of specialty services such as piping, erection and dismantling for industrial and commercial needs, blasting, janitorial, lawn maintenance, etc. Its clients mostly come from the petrochemical, power and utilities, refining, pulp and paper, commercial, and marine industries. Industrial Solutions aims to satisfy all of its clients' specialty contractor needs.
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 4.4
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
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 4.2
Bright Horizons Family Solutions is a leading provider of early education and preschools, employer-sponsored child care, back-up care, educational advisory services and other work/life solutions. They strive to: - Nurture each child's unique qualities and potential - Support families through strong partnerships - Collaborate with employers to build family-friendly workplaces - Create a work environment that encourages professionalism, growth, and diversity - Grow a financially strong organization
Zippia score 4.5
Visa is a global payments technology company working to enable consumers, businesses, banks and governments to use digital currency. Headquartered in San Francisco, California, this reputable multinational financial services corporation connects consumers, businesses, banks and governments in more than 200 countries and territories worldwide.
Zippia score 4.1
DISH Network Corporation is an American television provider and the owner of the direct-broadcast satellite provider Dish, commonly known as Dish Network, and the over-the-top IPTV service, Sling TV.
Zippia score 4.4
Indeed is an employment-related metasearch engine for job listings, available in more than 50 countries and 28 languages, and covering 94% of global GDP. With more than 140 million monthly unique visitors, Indeed has double the traffic of the next leading job site. According to a recent study, Indeed is the #1 source of external hire for employers (SilkRoad, 2013). Since 2004, Indeed has given job seekers free access to millions of jobs from thousands of company websites and job boards. As the leading pay for performance recruitment advertising network, Indeed drives millions of targeted applicants to jobs in every field and is the most cost-effective source of candidates for thousands of companies. Founded by Paul Forster and Rony Kahan, Indeed has over 800 employees with offices in Austin, Dublin, London, San Mateo, New York and Stamford.
Zippia score 4.8
Electronic Arts (EA) is a global interactive entertainment software company that delivers games, content, and online services for internet-connected consoles, personal computers, mobile phones, and tablets. The company develops and publishes video games for various platforms, including PC, Xbox One, PlayStation 4, Xbox 360, PlayStation 3, Wii, iPhone, iPad, Android, and Windows Phone. Some of its popular games include The Sims, Madden NFL, EA SPORTS FIFA, Battlefield, Dragon Age, Plants vs. Zombies, Need for Speed, Battlefield, and Mass Effect. Electronic Arts was founded in 1982 and is based in Redwood City, California.
Zippia score 4.6
Activision Blizzard is the world's most successful interactive entertainment company. The California-based business specializes in producing cutting-edge, best-selling games including Call of Duty, Skylanders, Overwatch, Candy Crush and more. Activision Blizzard integrates Activision, Blizzard Entertainment, Major League Gaming, Activision Blizzard Studios, King, as well independent studios. Activision Blizzard has been recognized as one of FORTUNE' magazine's “100 Best Companies To Work For".
Zippia score 4.8
Illumina is dedicated to advancing human health by unlocking the power of the genome. The company provides sequencing and array-based solutions for genetic analysis, and serve as tools for disease research, drug development, and the development of molecular tests in the clinic. Illumina's solutions are used in the life sciences, oncology, reproductive health, agriculture, forensic genomics, and other areas. Illumina, Inc. was founded in 1998 and is headquartered in San Diego, California. The company employs over 6000 employees.
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 4.6
Kelly Services, Inc. (Kelly) is a global workforce solutions provider operating throughout the world. Kelly assigns professional and technical employees in the fields of education, legal, health care, and creative services. It has also developed a suite of solutions to help customers manage their workforce. Kelly offers outsourcing, consulting, recruitment, career transition and vendor management services. It operates in seven business segments: Americas Commercial, Americas Professional and Technical (Americas PT), EMEA Commercial, EMEA Professional and Technical (EMEA PT), APAC Commercial, APAC Professional and Technical (APAC PT) and Outsourcing and Consulting Group (OCG). Kelly's workforce solutions are provided to a diversified group of customers through offices in three regions: the Americas, Europe, the Middle East, and Africa (EMEA) and Asia Pacific. On November 16, 2011, it acquired Tradicao Planejamento e Tecnologia de Servicos S.A. and Tradicao Tecnologia e Servicos Ltda.
Zippia score 4.4
Konica Minolta, Inc. is a Japanese multinational technology company headquartered in Marunouchi, Chiyoda, Tokyo, with offices in 49 countries worldwide.
Zippia score 4.8
PTC Inc. is a US-based company that is engaged in developing, marketing, and supporting product lifecycle management (PLM) software solutions and associated services. It is a provider of technology platforms and enterprise applications for smart and connected products, operations, and systems. It serves its products to various industries including manufacturing, publishing, services, government, and life sciences sectors. Currently, PTC employs more than 6,000 professionals and serving more than 28,000 businesses worldwide. It was established in 1985.
Zippia score 4.8
Guidewire Software, Inc. provides technology solutions to the property, casualty, and workers compensation insurance industry. It offers ClaimCenter, a Web-based claims system that supports various lines of personal, commercial, and workers' compensation insurance; BillingCenter, a Web-based enterprise application for coordinating, executing, and recording receivables transactions; and PolicyCenter, a Web-based underwriting and policy administration system for personal and commercial line carriers. The company also offers implementation services; and assessment services for property and casualty companies in North America. Its solutions are used to perform various insurance operations, including billing, underwriting, policy, and claim management. Guidewire Software, Inc. was founded in 2001 and is based in San Mateo, California with additional offices in London, Munich, Paris, Sydney, Tokyo, Hong Kong, and Toronto.
Zippia score 4.2
Incedo is a Bay Area headquartered, technology consulting and services firm focused on Data Analytics and Emerging Technologies. We work with clients across the Financial Services, Life Science and Communication Engineering sectors. We build solutions ...
Zippia score 4.3
MOD Super Fast Pizza owns and operates a chain of pizza restaurants in the United States and the United Kingdom. Its restaurants offer pizzas, salads, sides, and beverages. MOD Super Fast Pizza also allows customers to customize their orders. It offers its products through restaurant chains, as well as online. Moreover, MOD Super Fast Pizza franchises its pizza restaurants. Scott and Ally Svenson founded it in 2008, with its headquarters in Bellevue in Washington.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Gilead Sciences | |
| 2 | Sony Interactive Entertainment America | |
| 3 | PlayStation | |
| 4 | Qualys | |
| 5 | Zoox | |
| 6 | Xerago | |
| 7 | QuinStreet | |
| 8 | SciClone Pharmaceuticals | |
| 9 | Legacy Partners | |
| 10 | Channel Insider | |
| 11 | DoveBid | |
| 12 | Conviva | |
| 13 | Gazillion Entertainment | |
| 14 | GridGain Systems | |
| 15 | Sling Media | |
| 16 | Arena Solutions | |
| 17 | Peninsula Jewish Community Center | |
| 18 | TeraRecon | |
| 19 | Inktomi | |
| 20 | Conversica |