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, 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
Industries
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1291Undisclosed2 - 9 employeesSanta Monica, CAThe Raven Company is a small Santa Monica, California-based web design company. Their services include Web Design and IT managed services.Read More
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1292Undisclosed10 - 49 employeesSanta Cruz, CAProductOps, Inc. Is a small data analytics company launched in 2008. Their team focuses on BI & big data consulting & SI and Custom Software Development.Read More
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1293$5,000+250 - 999 employeesSan Mateo, CABased in San Mateo, California, Folio3 AI is a AI firm. Launched in 2005, the midsize team offers Artificial Intelligence, IT strategy consulting, IT staff augmentation, custom software development, and more.Read More
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1294$5,000+2 - 9 employeesChula Vista, CAIMG Networks, a small IT managed services company, is headquartered in Chula Vista, California. The team provides IT managed services and unified communications consulting & SI.Read More
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1295$5,000+2 - 9 employeesVista, CAW Y Technologies Inc is a Vista, California-based big data analytics company. Their services include BI & big data consulting & SI and IT managed services.Read More
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1296Undisclosed2 - 9 employeesUnion City, CAAvila IT Services is a small IT managed services company headquartered in Union City, California. Their services include IT managed services and Corporate Training & Coaching.Read More
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1297Undisclosed2 - 9 employeesLivermore, CALuitporia Software Consult is a CRM consulting and SI company located in Livermore, California. They provide CRM consulting and SI and IT managed services.Read More
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1298Undisclosed2 - 9 employeesConcord, CA , CAO3, Inc. Is an artificial intelligence development company. Founded in 2012, the agency focuses on Artificial Intelligence and BI & big data consulting & SI.Read More
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1299Undisclosed2 - 9 employeesSanta Ana, CALaunched in 2007, AES Global, Inc. Is a small Santa Ana, California-based Enterprise App Modernization company. Their team focuses on Enterprise App Modernization and IT managed services.Read More
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1300Undisclosed2 - 9 employeesSan Francisco, CADELTA Computer Solutions is a small San Francisco, California-based software development firm. Their services include Custom Software Development and CRM consulting and SI.Read More
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1301Undisclosed2 - 9 employeesSacramento, CASunstoneIT is a small IT strategy consulting company located in Sacramento, California. Their services include IT strategy consulting and Custom Software Development.Read More
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1302Undisclosed2 - 9 employeesLos Angeles, CAPerformigence Corporation is a custom software development firm. Launched in 1998, the team offers Custom Software Development and IT strategy consulting.Read More
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1303Undisclosed2 - 9 employeesSan Diego, CA8People, Inc. Is a small data analytics company. They provide BI & big data consulting & SI and cloud consulting & SI and were established in 2017.Read More
Industries
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1304Undisclosed2 - 9 employeesSan Francisco, CALucid Privacy Group is an IT strategy consulting company headquartered in San Francisco, California. They provide IT strategy consulting and Cybersecurity and were founded in 2013.Read More
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1305Undisclosed2 - 9 employeesCulver City, CALocated in Culver City, California, Bright Defense, LLC. Is a Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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1306Undisclosed2 - 9 employeesLos Angeles, CAXeneX Inc. Is a Cybersecurity company. In Los Angeles, California, their team provides Cybersecurity and IT managed services.Read More
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1307Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2022, Catenactio, a small Cybersecurity company, is located in Los Angeles, California. Their team specializes in Cybersecurity and IT managed services.Read More
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1308Undisclosed2 - 9 employeesPoway, CAEmpowered IT Solutions is a big data analytics company. Launched in 2015, the company is located in Poway, California. Their team specializes in BI & big data consulting & SI and Cybersecurity.Read More
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1309Undisclosed2 - 9 employeesIrvine, CASmall Cybersecurity company Promenade Software, is based in Irvine, California. The team offers Cybersecurity and cloud consulting & SI.Read More
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1310$25,000+50 - 249 employeesSacramento, CASOFTLIX is a Noida, India-based mobile application development firm. The small company was launched in 2022. Their services include mobile app development, web development, IT strategy consulting, and custom software development.Read More
Industries
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1311$5,000+10 - 49 employeesSan Francisco, CACyberProtocols is an e-commerce development firm. The team is headquartered in San Francisco, California, and their services include E-Commerce Development and Web Development.Read More
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1312$1,000+Freelancer employeesAliso Viejo, CARead More
BlairSammons.com is an IT consulting agency based in Aliso Viejo, Calif. BlairSammons.com specializes in IT strategy consulting, software integration, hardware installations, IT managed services and more.
Clients
VeracityColab.comIndustries
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1313$25,000+10 - 49 employeesCorona, CAAppcore Labs is a mobile app development firm located in Corona, California and India. They specialize in Mobile App Development and Web Development and were founded in 2012.Read More
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1314$5,000+10 - 49 employeesSanta Clarita, CAFound Studios is an Advertising company established in 1994. Headquartered in Santa Clarita, California, the team offers Advertising and Branding.Read More
Industries
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1315$1,000+10 - 49 employeesLos Altos, CAFounded in 2010, WebAppMate is a small Los Altos, California-based ERP consulting and SI company. Their team provides ERP consulting and SI and Custom Software Development.Read More
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1316Undisclosed50 - 249 employeesSan Mateo, CAFounded in 1979, Caccia Plumbing, a midsize SEO agency, is based in San Mateo, California. Their team specializes in Search Engine Optimization and UX/UI Design.Read More
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1317$1,000+10 - 49 employeesBerkeley, CARead More
Founded in 2014, Privo IT, LLC is an AWS advanced consulting company with three locations in Woburn, Mass., Berkeley, Calif., and Portland, Ore. They have a team of about 45 employees.
Industries
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1318$1,000+10 - 49 employeesSan Jose, CAContent Marketing company Next Generation Professionals is based in San Jose, California and Huntington Beach, California. The team specializes in Content Marketing and Conversion Optimization.Read More
Clients
Global 7 Diagnostics -
1319$1,000+10 - 49 employeesAnaheim, CANodus Technologies is an e-commerce development company. Their small team is located in Anaheim, California and China. Their services include E-Commerce Development and CRM consulting and SI.Read More
Industries
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1320$10,000+10 - 49 employeesBrea, CASmall IT managed services and artificial intelligence firm Aviana Global, is in Brea, California. Their services include IT managed services and Artificial Intelligence.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
IT Services Company
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