Top 100 IT Services Companies in California
The Best of December 2025Looking 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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$5,000+50 - 249 employeesGaithersburg, MDRead More
DesignDATA is an IT managed services company. Established in 1979, the midsize agency is headquartered in Gaithersburg, Maryland and Washington, District of Columbia. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, and Cybersecurity.
Industries
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$1,000+50 - 249 employeesNaperville, ILRead More
BetterWorld Technology is a midsize IT managed services company launched in 2003. Their services include IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting. The company is headquartered in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado.
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991Undisclosed2 - 9 employeesTustin, CALaunched in 2005, Royal Network IT Solutions, Inc. Is a small IT managed services and IT strategy consulting company. Their services include IT managed services and IT strategy consulting.Read More
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992Undisclosed2 - 9 employeesTustin, CANextech Inc. Is an IT managed services company. Based in Tustin, California and Edmond, Oklahoma, the team offers IT managed services and IT strategy consulting.Read More
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993Undisclosed10 - 49 employeesModesto, CAITSolutions|Currie, a small cloud consulting & SI company, is located in Modesto, California. The team provides cloud consulting & SI and IT managed services.Read More
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994Undisclosed10 - 49 employeesModesto, CADatapath is a cloud consulting & SI company. In Modesto, California, the company was founded in 2005. Their services include cloud consulting & SI and IT managed services.Read More
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995Undisclosed10 - 49 employeesIrvine, CAThinkbox Technology Group is a big data company. The Irvine, California-based firm was launched in 2006. Their services include BI & big data consulting & SI and cloud consulting & SI.Read More
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996Undisclosed10 - 49 employeesIrvine, CAIT managed services company Enterprise Data Solutions LLC is in Irvine, California. They offer IT managed services and cloud consulting & SI.Read More
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997Undisclosed2 - 9 employeesOakland, CAT5 Solutions Technology Consulting is an Oakland, California-based IT strategy consulting company. They specialize in IT strategy consulting.Read More
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998$1,000+10 - 49 employeesBurbank, CACRM consulting and SI company Skyline Consultants was founded in 2018. The agency offers CRM consulting and SI and IT managed services.Read More
Industries
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999Undisclosed2 - 9 employeesSacramento, CADVBE Technology Group is a small Cybersecurity company. Founded in 2015, the team specializes in Cybersecurity and cloud consulting & SI.Read More
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1000Undisclosed2 - 9 employeesEl Dorado Hills, CAHeadquartered in El Dorado Hills, California, STAC Systems, INC. STAC Solutions is a small IT managed services company. Their services include IT managed services.Read More
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1001Undisclosed2 - 9 employeesSan Diego, CABig data analytics company OpAnalytx LLC was founded in 2018. The team offers BI & big data consulting & SI and cloud consulting & SI and is based in San Diego, California.Read More
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1002Undisclosed50 - 249 employeesSan Diego, CALaunched in 2003, AUSGAR Technologies, Inc. Is an IT managed services and Cybersecurity company. The agency focuses on IT managed services and Cybersecurity, and is midsize.Read More
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1003Undisclosed2 - 9 employeesOceanside, CACybersecurity company KNC Strategic Services focuses on Cybersecurity and Application Management & Support. They were established in 2018.Read More
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1004Undisclosed2 - 9 employeesBurbank, CATavera Technologies, INC. Is a small IT managed services company located in Burbank, California. Their services include IT managed services.Read More
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1005Undisclosed2 - 9 employeesCalexico, CALocated in Calexico, California, W-PNP, Inc. Is an IT managed services company. They focus on IT managed services and were established in 2003.Read More
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1006Undisclosed50 - 249 employeesSan Francisco, CAKinetica is a midsize custom software development company. Launched in 2009, the team offers Custom Software Development and Artificial Intelligence.Read More
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1007Undisclosed10 - 49 employeesFolsom, CALaunched in 2007, Anvaya Solutions is a small Cybersecurity company in Folsom, California. Their team specializes in Cybersecurity.Read More
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1008Undisclosed2 - 9 employeesCupertino, CAStep Ahead Solutions, Inc. Is a Cybersecurity company. Launched in 2006, the company is headquartered in Cupertino, California. Their services include Cybersecurity and BI & big data consulting & SI.Read More
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1009Undisclosed10 - 49 employeesLaguna Niguel, CALaunched in 2008, ClientLook, a small CRM consulting and SI company, is in Laguna Niguel, California. Their team focuses on CRM consulting and SI and Social Media Marketing.Read More
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1010Undisclosed50 - 249 employeesChula Vista, CABMi is an IT staff augmentation company. Based in Chula Vista, California, the firm offers IT staff augmentation and cloud consulting & SI.Read More
Industries
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1011Undisclosed250 - 999 employeesSan Jose, CADigitalOnUs is a cloud consulting & SI company. Their midsize team of employees is based in San Jose, California. Their team offers cloud consulting & SI.Read More
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1012Undisclosed50 - 249 employeesBeverly Hills, CACitrin Cooperman is a midsize Cybersecurity company launched in 1979. Their team provides Cybersecurity and Accounting.Read More
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1013Undisclosed50 - 249 employeesSan Francisco, CABased in Boston, Massachusetts and San Francisco, California, CloudHealth by VMware is a cloud consulting & SI company. They provide cloud consulting & SI.Read More
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1014Undisclosed2 - 9 employeesSan Francisco, CAExcelym, a small IT strategy consulting company, is based in San Francisco, California. Their services include IT strategy consulting and IT managed services.Read More
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1015Undisclosed10 - 49 employeesSan Francisco, CAData analytics company Enterprise Horizon Consulting Group is located in San Francisco, California. The team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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1016Undisclosed10 - 49 employeesSan Diego, CAFounded in 2016, Red River Resources, LLC NavAide, a small IT managed services company, is in San Diego, California. Their team focuses on IT managed services and Accounting.Read More
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1017Undisclosed2 - 9 employeesPleasanton, CAIT managed services company Computer Cite (CCITE) specializes in IT managed services. They were established in 1997.Read More
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1018Undisclosed250 - 999 employeesSan Francisco, CAGensigma, LLC is a cloud consulting & SI company. They are located in San Francisco, California and have midsize team. They specialize in cloud consulting & SI and Staffing.Read More
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1019Undisclosed250 - 999 employeesSan Francisco, CAPremise is an IT strategy consulting company. Launched in 2012, the firm provides IT strategy consulting and Artificial Intelligence.Read More
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1020Undisclosed2 - 9 employeesSan Francisco, CAIn San Francisco, California, CircleVenue is an IT strategy consulting and IT managed services company. Their services include IT strategy consulting and IT managed services.Read More
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Check out an IT Services Company in California with the most new reviews in the past 12 months.
Most Reviewed
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