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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$10,000+50 - 249 employeesL'viv, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
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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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481Undisclosed10 - 49 employeesStockton, CACrown Enterprises is an IT managed services company. They were founded in 2009 and specialize in IT managed services and IT strategy consulting.Read More
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482Undisclosed2 - 9 employeesLodi, CAEstablished in 2002, EZ Network Systems, Inc. Is a small Lodi, California-based IT managed services company. Their team specializes in IT managed services.Read More
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483$5,000+10 - 49 employeesStockton, CAIT strategy consulting company Verve IT was launched in 2006. The team focuses on IT strategy consulting and cloud consulting & SI.Read More
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484$1,000+2 - 9 employeesSanta Fe Springs, CAIn Santa Fe Springs, California, SPN Networks, Inc is a cloud consulting & SI company. They focus on cloud consulting & SI and IT managed services and were established in 2002.Read More
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485$1,000+10 - 49 employeesSan Diego, CAPros Global Inc is a Cybersecurity company. The San Diego, California-based agency focuses on Cybersecurity and IoT development.Read More
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486$5,000+2 - 9 employeesNevada City, CARead More
Launched in 2016, opsZero is a small cloud consulting & SI company located in Nevada City, California. Their services include cloud consulting & SI.
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487Undisclosed10 - 49 employeesLake Forest, CAEstablished in 1998, Cywest Communications is a cloud consulting & SI company. Their team offers cloud consulting & SI and Cybersecurity.Read More
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488$1,000+10 - 49 employeesSan Diego, CAExcedeo IT Support San Diego, an IT managed services company, was founded in 2003. The small team offers IT managed services and cloud consulting & SI.Read More
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489$75,000+10 - 49 employeesFremont, CAIT managed services company Formac Inc is based in Fremont, California. The team offers IT managed services and IT staff augmentation.Read More
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490$1,000+2 - 9 employeesNewport Beach, CATechifornia IT Services is an IT managed services company. In Newport Beach, California, the team specializes in IT managed services and IT strategy consulting.Read More
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491$5,000+10 - 49 employeesSan Diego, CAKeyNode Solutions, a CRM consulting and SI company, was established in 2000. The company specializes in CRM consulting and SI, and is small.Read More
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492$10,000+50 - 249 employeesCampbell, CAITque is a midsize IT strategy consulting company in Campbell, California. Their services include IT strategy consulting and Cybersecurity.Read More
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493Undisclosed10 - 49 employeesRoseville, CAAshby Communications is an IT managed services company. They are headquartered in Roseville, California, and their services include IT managed services and IT strategy consulting.Read More
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494Undisclosed2 - 9 employeesVentura, CAPc Express is a Ventura, California-based IT managed services company. They specialize in IT managed services and cloud consulting & SI and were launched in 1999.Read More
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495Undisclosed10 - 49 employeesSan Francisco, CABased in San Francisco, California, Voror is a Cybersecurity company. They specialize in Cybersecurity.Read More
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496Undisclosed2 - 9 employeesGlendale, CAITGurus is an IT strategy consulting company. Based in Glendale, California, the agency was founded in 2013. Their team provides IT strategy consulting and cloud consulting & SI.Read More
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497Undisclosed10 - 49 employeesBrentwood, CADirect Protection Security - ADT Authorized Dealers is a Cybersecurity company. The Brentwood, California-based team specializes in Cybersecurity.Read More
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498Undisclosed10 - 49 employeesLong Beach, CACORE Group is a Long Beach, California-based IT managed services company. Their services include IT managed services and IT strategy consulting.Read More
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499Undisclosed50 - 249 employeesTustin, CASwiftTech Solutions, Inc. Is an IT managed services company. Established in 2008, the team specializes in IT managed services and IT strategy consulting. The agency is based in Tustin, California.Read More
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500$1,000+2 - 9 employeesTemecula, CACybersecurity and IT managed services company Unique Solutions MSP, Inc. Focuses on Cybersecurity and IT managed services. They were founded in 2015.Read More
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501$25,000+10 - 49 employeesTustin, CASmall IT managed services company Haag Networking LLC, is in Tustin, California. Their services include IT managed services and cloud consulting & SI.Read More
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502Undisclosed10 - 49 employeesDublin, CACloudmylab is an IT managed services company established in 2016. The small team provides IT managed services.Read More
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503Undisclosed10 - 49 employeesLos Gatos, CAOne82 is a Los Gatos, California-based Cybersecurity and IT managed services company. They focus on Cybersecurity and IT managed services and were founded in 1999.Read More
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504$5,000+10 - 49 employeesIrvine, CACircle MSP - Technology Consulting Firm is an IT managed services company launched in 1989. The small team specializes in IT managed services and Cybersecurity.Read More
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505$1,000+2 - 9 employeesSan Diego, CAFounded in 2004, REMSIS - Managed IT Services is a small IT managed services company based in San Diego, California. Their team focuses on IT managed services and Cybersecurity.Read More
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506Undisclosed50 - 249 employeesMilpitas, CACaprium is a Milpitas, California-based big data analytics company. They provide BI & big data consulting & SI and cloud consulting & SI.Read More
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507$1,000+10 - 49 employeesSanta Barbara, CAAnchor Point IT Solutions is an IT managed services company. The Santa Barbara, California-based team specializes in IT managed services and IT strategy consulting.Read More
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508Undisclosed10 - 49 employeesSan Francisco, CASentant is an IT strategy consulting company. They provide IT strategy consulting and cloud consulting & SI and are in San Francisco, California.Read More
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509$1,000+10 - 49 employeesSan Diego, CALaunched in 2007, Windward Technology is a Cybersecurity company. The small team focuses on Cybersecurity and IT strategy consulting.Read More
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510Undisclosed10 - 49 employeesLaguna Hills, CAZephyr Networks, Inc. Is an IT strategy consulting company. The team offers IT strategy consulting and BI & big data consulting & SI, and the company is located in Laguna Hills, California.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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