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.
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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451Undisclosed2 - 9 employeesSanta Rosa, CALaunched in 2002, Wooden Spoon is an IT managed services company. The team focuses on IT managed services.Read More
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452Undisclosed10 - 49 employeesFullerton, CAIntelecis, a Cybersecurity and IT managed services company, was established in 2010. The team provides Cybersecurity and IT managed services.Read More
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453$1,000+2 - 9 employeesVilla Park, CAAcentec, Inc. Is an IT managed services company. The Villa Park, California-based company focuses on IT managed services and IT strategy consulting.Read More
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454$1,000+2 - 9 employeesLaguna Niguel, CASkyward Technical Solutions, an IT managed services company, was established in 2011. The small team focuses on IT managed services and other IT consulting and SI.Read More
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455Undisclosed10 - 49 employeesLos Angeles, CACybersecurity and IT managed services company Crimson IT was launched in 2011. The agency specializes in Cybersecurity and IT managed services, and is small.Read More
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456Undisclosed50 - 249 employeesLos Angeles, CAGuardian Integrated security, a Cybersecurity company, was launched in 1999. The firm offers Cybersecurity.Read More
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457Undisclosed50 - 249 employeesVentura, CAFTI Services is an IT managed services company. Located in Ventura, California and Westlake Village, California, the firm focuses on IT managed services and IT strategy consulting.Read More
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458Undisclosed50 - 249 employeesIrvine, CATechnijian is a midsize IT strategy consulting company in Irvine, California and Los Angeles, California. The team focuses on IT strategy consulting and cloud consulting & SI.Read More
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459Undisclosed10 - 49 employeesHuntington Beach, CALaunched in 1999, Alpha & Omega Computer and Network Services, Inc. Is a small Cybersecurity company. Their team specializes in Cybersecurity and IT managed services.Read More
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460Undisclosed10 - 49 employeesRolling Hills Estates, CAADS Consulting Group Inc. Is a small Rolling Hills Estates, California-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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461Undisclosed10 - 49 employeesOakland, CAIn Oakland, California, PC Professional, Inc. Is an IT managed services company. The team provides IT managed services and Cybersecurity.Read More
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462Undisclosed10 - 49 employeesCalabasas, CACastellan Inc. Is an other IT consulting and SI company founded in 1999. Their team specializes in other IT consulting and SI and IT strategy consulting.Read More
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463$10,000+250 - 999 employeesSanta Clara, CANsight Inc., an IT strategy consulting company, was launched in 2005. The team specializes in IT strategy consulting and cloud consulting & SI.Read More
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464$5,000+2 - 9 employeesRoseville, CAComodo Technology, a small IT managed services company, is located in Roseville, California. Their services include IT managed services and IT strategy consulting.Read More
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465$10,000+10 - 49 employeesManhattan Beach, CARead More
Health Samurai is a machine learning company based in Manhattan Beach, Calif. Founded in 2004, the team of 16 specializes in web development, mobile app development and AI.
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466$25,000+1,000 - 9,999 employeesSan Mateo, CAERP consulting and SI company LogiGear was established in 1994. The team focuses on ERP consulting and SI and Custom Software Development.Read More
Clients
CommScopeIndustries
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467$5,000+10 - 49 employeesRedwood City, CAGreenM is an AI firm established in 2014. Their services include Artificial Intelligence and BI & big data consulting & SI.Read More
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468$25,000+50 - 249 employeesSan Francisco, CAIntuitech, a Digital Strategy company, is headquartered in Budapest, Hungary and San Francisco, California. The team provides Digital Strategy and Custom Software Development.Read More
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TelenorIndustries
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469Undisclosed10 - 49 employeesLos Angeles, CARead More
Small IT managed services company Los Angeles IT, is headquartered in Los Angeles, California; Santa Monica, California; Los Angeles, California and Los Angeles, California. Launched in 2016, the team offers IT managed services, Search Engine Optimization, BI & big data consulting & SI, cloud consulting & SI, and more.
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470$25,000+250 - 999 employeesFremont, CAAdvanced Hospitality Technologies is an IT managed services company. The Fremont, California-based firm was founded in 2011. Their team offers IT managed services.Read More
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471$5,000+10 - 49 employeesSan Francisco, CALaunched in 2009, Centarus | IT Support & Managed IT Services is an IT managed services company. The team provides IT managed services and Cybersecurity.Read More
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472$5,000+2 - 9 employeesThousand Oaks, CARock Solid Technology Solutions is an IT managed services company. The company is located in Thousand Oaks, California. Their services include IT managed services and other IT consulting and SI.Read More
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473$5,000+10 - 49 employeesLos Angeles, CALaunched in 2000, Xperts Unlimited Inc. Is an IT managed services company. The team provides IT managed services and Cybersecurity.Read More
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474$10,000+10 - 49 employeesSan Francisco, CAZen Cloud Technologies is a CRM consulting and SI company. They are in San Francisco, California. Their team provides CRM consulting and SI.Read More
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475$1,000+2 - 9 employeesArcadia, CAAlliant Technology Group is a small IT managed services company in Arcadia, California. Their services include IT managed services.Read More
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476Undisclosed10 - 49 employeesEl Dorado Hills, CAEstablished in 2007, COMERIT, INC. Is a small El Dorado Hills, California-based data analytics company. Their services include BI & big data consulting & SI and IT strategy consulting.Read More
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477Undisclosed10 - 49 employeesSan Francisco, CAFounded in 1987, Langtech is a small IT managed services company. Their services include IT managed services and Custom Software Development.Read More
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478$1,000+10 - 49 employeesLos Angeles, CAM-Theory Group is a cloud consulting & SI company located in Los Angeles, California. Founded in 1998, the team specializes in cloud consulting & SI and IT managed services.Read More
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479Undisclosed10 - 49 employeesSan Diego, CAFusion Factor Corporation is a Cybersecurity company. Their small team is based in San Diego, California and Carlsbad, California. Their team offers Cybersecurity and cloud consulting & SI.Read More
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480$1,000+2 - 9 employeesRoseville, CASalient IT, an IT managed services company, is in Roseville, California. They offer IT managed services and IT strategy consulting and were launched in 2011.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.
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