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.
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$1,000+50 - 249 employeesNaperville, ILBetterWorld 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.Read More
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1201Undisclosed2 - 9 employeesLivermore, CALaunched in 2011, Direct Resource Management, Inc. Is a small IT managed services company. Their team specializes in IT managed services.Read More
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1202Undisclosed10 - 49 employeesFremont, CAEvergreen IT Solutions is an IT managed services company headquartered in Fremont, California. The team provides IT managed services.Read More
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1203Undisclosed2 - 9 employeesSanta Fe Springs, CAEwaste Cleanup, an IT managed services company, offers IT managed services. The agency is headquartered in Santa Fe Springs, California.Read More
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1204Undisclosed50 - 249 employeesSacramento, CAAll Green Electronics Recycling is an IT managed services company. The team offers IT managed services, and the firm is based in Sacramento, California.Read More
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1205Undisclosed10 - 49 employeesBurlingame, CAIT managed services company Silverback Data Center Solutions was founded in 2003. The company focuses on IT managed services and IT staff augmentation.Read More
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1206Undisclosed10 - 49 employeesSanta Ana, CALaunched in 2002, TechWaste Recycling, LLC is a small Santa Ana, California-based IT managed services company. Their services include IT managed services.Read More
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1207Undisclosed2 - 9 employeesMilpitas, CAGreen E-Waste Recycling Center is an IT managed services company. Headquartered in Milpitas, California, the team focuses on IT managed services.Read More
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1208Undisclosed2 - 9 employeesParamount, CASunada Recycling is an IT managed services company. They were launched in 2017, and their services include IT managed services.Read More
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1209Undisclosed10 - 49 employeesRancho Cucamonga, CAIT managed services company DES Technologies was established in 1965. The small team specializes in IT managed services and Cybersecurity.Read More
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1210Undisclosed10 - 49 employeesSan Marcos, CABorderLAN, Inc is a Cybersecurity company. Their small team of employees is headquartered in Portland, Oregon and San Marcos, California. Their team offers Cybersecurity and IT managed services.Read More
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1211Undisclosed250 - 999 employeesLos Angeles, CAIT strategy consulting company DAS Health is based in Los Angeles, California and Tampa, Florida. Their services include IT strategy consulting and Cybersecurity.Read More
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1212Undisclosed2 - 9 employeesLos Angeles, CASolutionz Security is a Cybersecurity company based in Los Angeles, California. They offer Cybersecurity and IT managed services.Read More
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1213Undisclosed250 - 999 employeesLos Angeles, CAHylink Group is a business intelligence company. Their team is in Los Angeles, California. The company focuses on BI & big data consulting & SI and Advertising.Read More
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1214Undisclosed250 - 999 employeesIrvine, CATechnologent is a Cybersecurity and IT managed services company. Launched in 2002, the agency offers Cybersecurity and IT managed services.Read More
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1215Undisclosed2 - 9 employeesSan Mateo, CAFounded in 2018, TEN31 Technology is a small IT managed services company. Their team offers IT managed services and Web Development.Read More
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1216Undisclosed50 - 249 employeesUnion City, CAKBA Document Solutions is an ECM consulting and SI company. Their midsize team is in Union City, California and focuses on ECM consulting and SI. The agency was launched in 2007.Read More
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1217Undisclosed10 - 49 employeesSan Francisco, CAECM Solutions, LLC is an ECM consulting and SI company. The team focuses on ECM consulting and SI, and the firm is headquartered in San Francisco, California.Read More
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1218Undisclosed2 - 9 employeesSan Francisco, CABased in San Francisco, California, Ooctolabnet is a small Cybersecurity and IT managed services company. Their services include Cybersecurity and IT managed services.Read More
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1219Undisclosed10 - 49 employeesLos Angeles, CACyberXProtect is a Cybersecurity company founded in 2024. The company provides Cybersecurity and IT managed services.Read More
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1220Undisclosed50 - 249 employeesSanta Clara, CAInovasys, a Digital Strategy company, was established in 2014. The team offers Digital Strategy and cloud consulting & SI.Read More
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1221Undisclosed2 - 9 employeesSan Jose, CATotally Networked, a small Cybersecurity and IT managed services company, is in Kailua, Hawaii and San Jose, California. The team focuses on Cybersecurity and IT managed services.Read More
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1222Undisclosed10 - 49 employeesBrea, CALocated in Las Vegas, Nevada and Brea, California, ThreatHunter.ai is a Cybersecurity company. Their services include Cybersecurity.Read More
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1223Undisclosed10 - 49 employeesLos Angeles, CACybersecurity company Mannassi IT Solutions was launched in 1996. The firm provides Cybersecurity and IT managed services, and is small.Read More
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1224Undisclosed10 - 49 employeesOakland, CANova Module, Inc. Is an IT strategy consulting company. The small Oakland, California-based team specializes in IT strategy consulting and BI & big data consulting & SI. The firm was launched in 2014.Read More
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1225Undisclosed50 - 249 employeesDiamond Bar, CAZenlayer is a midsize IT managed services company located in Diamond Bar, California and Hong Kong. Their services include IT managed services and cloud consulting & SI.Read More
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1226Undisclosed50 - 249 employeesOxnard, CAHeadquartered in Oxnard, California, Acuity Total Solutions is a midsize Cybersecurity and IT managed services company. Their services include Cybersecurity and IT managed services.Read More
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1227Undisclosed50 - 249 employeesDanville, CAIn Danville, California and Irvine, California, Arrayflair is an IT strategy consulting company. They provide IT strategy consulting and BI & big data consulting & SI and were launched in 2020.Read More
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1228Undisclosed10 - 49 employeesPalo Alto, CAEstablished in 2009, CIO Professional Services, LLC is an IT strategy consulting company. The small team focuses on IT strategy consulting and Cybersecurity.Read More
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1229Undisclosed250 - 999 employeesCovina, CACUJO AI® is a Cybersecurity company. The Covina, California-based team focuses on Cybersecurity and BI & big data consulting & SI.Read More
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1230Undisclosed10 - 49 employeesRiverside, CALocated in Riverside, California, Forum Info-Tech, Inc. Is a small Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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Schedule ConsultationMost Reviewed IT Services Company in California
Check out an IT Services Company in California with the most new reviews in the past 12 months.
Most Reviewed
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