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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1141Undisclosed50 - 249 employeesPalo Alto, CAEstablished in 2012, Safe Security is a Cybersecurity company. The team specializes in Cybersecurity and is located in Palo Alto, California and Santa Clara, California.Read More
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1142Undisclosed250 - 999 employeesSan Francisco, CACybersecurity company Skybox Security was launched in 2002. The team provides Cybersecurity and is in San Francisco, California.Read More
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1143Undisclosed1,000 - 9,999 employeesSan Jose, CACisco is a large cybersecurity company. The San Jose, California-based agency was established in 1984. Their services include cybersecurity and IT strategy consulting.Read More
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1144Undisclosed10 - 49 employeesSanta Clara, CAFounded in 2015, Prismo Systems is a small Cybersecurity company headquartered in Santa Clara, California. Their team focuses on Cybersecurity and IT managed services.Read More
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1145Undisclosed50 - 249 employeesSan Francisco, CAIT strategy consulting company Innovative Computing Systems, Inc. Is based in San Francisco, California. They offer IT strategy consulting and cloud consulting & SI.Read More
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1146Undisclosed10 - 49 employeesEl Dorado Hills, CAAIS (Advanced Integrated Solutions), a Cybersecurity company, provide Cybersecurity and IT strategy consulting. They were launched in 1995.Read More
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1147Undisclosed50 - 249 employeesWest Hollywood, CAInSOC is a Cybersecurity company. They are in West Hollywood, California, and their services include Cybersecurity.Read More
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1148Undisclosed250 - 999 employeesSan Francisco, CAArmis is a Cybersecurity company headquartered in San Francisco, California. Their services include Cybersecurity and IoT development.Read More
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1149Undisclosed10 - 49 employeesRancho Santa Margarita, CASocium Security, a Cybersecurity company, is in Rancho Santa Margarita, California. They provide Cybersecurity.Read More
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1150Undisclosed10 - 49 employeesLos Angeles, CAVirtis-US, a small Cybersecurity company, is located in Los Angeles, California and Auckland, New Zealand. The team focuses on Cybersecurity and BI & big data consulting & SI.Read More
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1151Undisclosed1,000 - 9,999 employeesWalnut Creek, CAExadel People is an user experience design agency launched in 1998. The team provides UX/UI Design and IT strategy consulting.Read More
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1152Undisclosed250 - 999 employeesFremont, CAHeadquartered in Fremont, California, SoftSol is a midsize Application Testing company. The team provides Application Testing and BI & big data consulting & SI.Read More
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1153Undisclosed2 - 9 employeesSacramento, CAFounded in 2019, Omnistruct, Inc. Is a Cybersecurity company. The team provides Cybersecurity and IT strategy consulting.Read More
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1154Undisclosed10 - 49 employeesSan Francisco, CAEAmmune is a San Francisco, California-based IT strategy consulting company. Founded in 2007, the team provides IT strategy consulting and BI & big data consulting & SI.Read More
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1155Undisclosed2 - 9 employeesCarlsbad, CADataDivider Inc is an IT strategy consulting company founded in 2004. The team provides IT strategy consulting and Cybersecurity.Read More
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1156Undisclosed2 - 9 employeesSan Jose, CAMitigate Solutions, Inc. Is an IT strategy consulting company. The San Jose, California-based team specializes in IT strategy consulting and Cybersecurity.Read More
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1157Undisclosed50 - 249 employeesIrvine, CAMSB Docs is an Irvine, California-based cloud consulting & SI company. The team offers cloud consulting & SI and Application Testing.Read More
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1158Undisclosed2 - 9 employeesTorrance, CALocated in Torrance, California, Aditi Group, Inc. Is a small IT strategy consulting company. The team focuses on IT strategy consulting and cloud consulting & SI.Read More
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1159Undisclosed2 - 9 employeesOrange, CACybernova Tech Consulting, an IT strategy consulting company, was launched in 2014. The firm specializes in IT strategy consulting and cloud consulting & SI.Read More
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1160Undisclosed2 - 9 employeesSausalito, CALaunched in 2017, Clarion GRC is a small Cybersecurity company. Their services include Cybersecurity and IT strategy consulting.Read More
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1161Undisclosed2 - 9 employeesSan Jose, CALaunched in 2010, DOSANJH USA Inc., a small IT strategy consulting company, is based in San Jose, California. Their team focuses on IT strategy consulting and Cybersecurity.Read More
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1162Undisclosed2 - 9 employeesLos Angeles, CATRC Inc. Is an IT strategy consulting company in Los Angeles, California. They specialize in IT strategy consulting and Cybersecurity and were founded in 2015.Read More
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1163Undisclosed10 - 49 employeesSacramento, CAGlobal IT Services is a Sacramento, California-based IT strategy consulting company. They focus on IT strategy consulting and Corporate Training & Coaching.Read More
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1164Undisclosed50 - 249 employeesFresno, CAIT strategy consulting company BCT Consulting, Inc. Offers IT strategy consulting and IT managed services. They are based in Fresno, California and San Jose, California.Read More
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1165Undisclosed10 - 49 employeesLos Gatos, CATenisiTech is an IT strategy consulting company launched in 2012. The firm specializes in IT strategy consulting and IT managed services.Read More
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1166Undisclosed2 - 9 employeesSan Diego, CALaunched in 1999, San Diego Computer Consulting is a small San Diego, California-based IT strategy consulting company. Their team offers IT strategy consulting and cloud consulting & SI.Read More
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1167Undisclosed10 - 49 employeesSacramento, CAFounded in 2000, MME Consulting, Inc. Is an IT strategy consulting company. The small team focuses on IT strategy consulting and Cybersecurity.Read More
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1168Undisclosed2 - 9 employeesSan Jose, CAIT strategy consulting company Esudo Technology Solutions is in San Jose, California. Founded in 2001, the team specializes in IT strategy consulting and Cybersecurity.Read More
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1169Undisclosed10 - 49 employeesCupertino, CAFounded in 2002, KalioTek is an IT strategy consulting company. The company offers IT strategy consulting and cloud consulting & SI, and is small.Read More
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1170Undisclosed10 - 49 employeesMilpitas, CALocated in Milpitas, California, ICE Consulting is a cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.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
IT Services Company
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