Top 100 IT Services Companies in California
The Best of June 2026Looking for a top IT services company in California?
For your company to grow, it is essential to choose the best technology. Hiring an innovative IT services provider is the easiest way to ensure that you are making the best use of technology, increasing sales, and staying one step ahead of the competition.
To assist you in your search for a partner, we’ve compiled this list of the top IT consultants in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
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List of the Best California IT Companies
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1771Undisclosed50 - 249 employeesRancho Cucamonga, CAVavrinek, Trine, Day & Co., LLP is an Accounting company in Rancho Cucamonga, California. Launched in 1948, the team provides Accounting and Cybersecurity.Read More
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1772Undisclosed50 - 249 employeesCampbell, CAIT managed services company OSI Engineering, Inc. Was founded in 2010. Based in Campbell, California, the team specializes in IT managed services and Accounting.Read More
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1773Undisclosed50 - 249 employeesIrvine, CALaunched in 2006, OrangePeople is a custom software development company. The team specializes in Custom Software Development and BI & big data consulting & SI.Read More
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1774Undisclosed50 - 249 employeesAnaheim, CAUB Technology Innovations (UBTI) is a cloud consulting & SI company. The Anaheim, California-based team focuses on cloud consulting & SI and Custom Software Development.Read More
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1775Undisclosed50 - 249 employeesSan Mateo, CAMarvel Marketers is a branding firm. The San Mateo, California-based team provides Branding and Marketing Strategy.Read More
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1776Undisclosed50 - 249 employeesDublin, CAFounded in 2014, InnovaPath Inc is a midsize UX design agency. Their team focuses on UX/UI Design and cloud consulting & SI.Read More
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1777Undisclosed50 - 249 employeesSan Francisco, CATestRigor is an Application Testing company. Established in 2015, the company is based in San Francisco, California. Their team focuses on Application Testing and ERP consulting and SI.Read More
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1778Undisclosed50 - 249 employeesChico, CALiatrio, a cloud consulting & SI company, was launched in 2023. The team focuses on cloud consulting & SI and Custom Software Development and is headquartered in Chico, California.Read More
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1779Undisclosed50 - 249 employeesSan Ramon, CALocated in San Ramon, California, Iron Horse is a midsize CRM consulting and SI company. The team focuses on CRM consulting and SI and AR/VR development.Read More
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1780Undisclosed50 - 249 employeesMill Valley, CAArize AI, a cloud consulting & SI company, was founded in 2019. The team offers cloud consulting & SI and Artificial Intelligence and is based in Mill Valley, California.Read More
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1781Undisclosed50 - 249 employeesSanta Clara, CAUX company Ab Ovo, Inc. Was founded in 2006. The agency offers UX/UI Design and BI & big data consulting & SI.Read More
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1782Undisclosed50 - 249 employeesSan Francisco, CAHeadquartered in San Francisco, California, Swish Analytics is a Market Research company. Their services include Market Research and BI & big data consulting & SI.Read More
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1783Undisclosed50 - 249 employeesCampbell, CAMaxonic is an Englewood, Colorado-based Staffing company. Their services include Staffing and BI & big data consulting & SI.Read More
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1784Undisclosed50 - 249 employeesSan Francisco, CAOdetta, Inc. Is a social media marketing agency located in San Francisco, California. They provide Social Media Marketing and Search Engine Optimization.Read More
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1785Undisclosed50 - 249 employeesDavis, CAMarket Research company Engage3 was founded in 2008. The company specializes in Market Research and Digital Strategy.Read More
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1786$25,000+50 - 249 employeesCupertino, CAPredikly LLC, an artificial intelligence company, focus on Artificial Intelligence and other IT consulting and SI. They were launched in 2017.Read More
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1787$10,000+250 - 999 employeesSunnyvale, CASedin Technologies is an IT strategy consulting company. The midsize team is based in Sunnyvale, California; Chennai, India; Fredericton, Canada and Bengaluru, India. Their services include IT strategy consulting, BI & big data consulting & SI, and Custom Software Development.Read More
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1788Undisclosed250 - 999 employeesIrvine, CAInterra Information Technologies is a cloud consulting & SI company. Founded in 1996, their team focuses on cloud consulting & SI and Cybersecurity.Read More
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1789UndisclosedFreelancer employeesNewport Beach, CAKookatech is an unified communications consulting & SI company founded in 2023. The firm offers unified communications consulting & SI and IT strategy consulting, and is small.Read More
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1790$5,000+50 - 249 employeesOrange, CALumen21, Inc is a cloud consulting & SI company. Based in Orange, California and Mumbai, India, the firm was launched in 2007. Their team offers cloud consulting & SI and Cybersecurity.Read More
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1791Undisclosed10 - 49 employeesSan Francisco, CACloud consulting & SI and CRM consulting and SI company Advanced Communities is based in London, United Kingdom and San Francisco, California. The small team provides cloud consulting & SI and CRM consulting and SI and was established in 2008.Read More
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1792$50,000+50 - 249 employeesLos Angeles, CARead More
Hvantage Technologies Inc is a Los Angeles-based digital agency that was founded in 2011. With more than 200 employees, the agency has experts in mobile app and custom software development, UX/UI design, and web design.
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1793Undisclosed50 - 249 employeesPleasanton, CASuiteMatrix IT Solutions is a CRM consulting and SI company based in Coimbatore, India and Pleasanton, California. Launched in 2019, the team offers CRM consulting and SI and ERP consulting and SI.Read More
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1794Undisclosed50 - 249 employeesDublin, CAUser experience company Canvendor is based in Dublin, California and Chennai, India. The team provides UX/UI Design and IT strategy consulting.Read More
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1795Undisclosed2 - 9 employeesSanta Ana, CAFounded in 2024, Falconforce Consulting is a Cybersecurity company. The team specializes in Cybersecurity and Blockchain and is headquartered in Santa Ana, California.Read More
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1796$25,000+50 - 249 employeesRancho Santa Margarita, CAEstablished in 2016, BayGrape Technology Solutions is an IT strategy consulting company. The team provides IT strategy consulting and Custom Software Development.Read More
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1797$5,000+250 - 999 employeesIrvine, CAFounded in 2011, CrowdStrike is a Cybersecurity company. Their team provides Cybersecurity and IT managed services.Read More
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1798$10,000+10 - 49 employeesLos Angeles, CACapte is an IoT development company. Founded in 2016, the agency offers IoT development and BI & big data consulting & SI.Read More
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Transdev Regionalverkehr Köln GmbH ( RVK for short ) RATPDev KeolisIndustries
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1799$1,000+2 - 9 employeesSan Francisco, CAIT managed services company SuperHero IT Solutions is in San Francisco, California. Their services include IT managed services and Web Design.Read More
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1800$50,000+250 - 999 employeesCamarillo, CARead More
Vizuri is a development and computer software company based in Herndon, Va. They were founded in 1986 and have a team of around 250 employees. Their services include custom software development, IT staff augmentation, and IT strategy consulting.
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AetnaIndustries
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Check out an IT Services Company in California with the most new reviews in the past 12 months.
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