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.
Industries
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$1,000+50 - 249 employeesNaperville, ILRead More
BetterWorld 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.
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901Undisclosed2 - 9 employeesAlameda, CAMcGavin Consulting Services is a small IT strategy consulting company in Alameda, California. The team offers IT strategy consulting.Read More
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902Undisclosed10 - 49 employeesUpland, CAResource Computer Solutions is a small Upland, California-based IT managed services company. Their services include IT managed services and Cybersecurity.Read More
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903Undisclosed2 - 9 employeesLake Forest, CATH2 Technologies, Inc is an IT managed services company launched in 2004. The company specializes in IT managed services and IT strategy consulting, and is small.Read More
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904Undisclosed50 - 249 employeesLake Forest, CAWave Technology Solutions Group, an unified communications consulting & SI company, was established in 1992. The midsize team offers unified communications consulting & SI and IT managed services.Read More
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905Undisclosed10 - 49 employeesLake Forest, CAEnterprise App Modernization company Asparian was established in 2004. The firm provides Enterprise App Modernization and cloud consulting & SI.Read More
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906Undisclosed2 - 9 employeesLake Forest, CACloud consulting & SI company SupportLine was founded in 2014. In Lake Forest, California, the team focuses on cloud consulting & SI and IT managed services.Read More
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907Undisclosed250 - 999 employeesMountain View, CALocated in Mountain View, California, Redis Labs is a midsize artificial intelligence development company. The team offers Artificial Intelligence and BI & big data consulting & SI.Read More
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908Undisclosed250 - 999 employeesRedwood City, CAAlation is an AI firm and big data company located in Redwood City, California. They provide Artificial Intelligence and BI & big data consulting & SI and were established in 2012.Read More
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909Undisclosed2 - 9 employeesCarlsbad, CAMoran Technology Consulting is a small big data analytics company in Carlsbad, California. Their services include BI & big data consulting & SI and IT strategy consulting.Read More
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910Undisclosed10 - 49 employeesVentura, CAMJP Technologies, Inc. Is an IT managed services and IT strategy consulting company. Their team is headquartered in Ventura, California and provides IT managed services and IT strategy consulting.Read More
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911Undisclosed10 - 49 employeesVentura, CAACM Computers is an IT managed services and IT strategy consulting company. They are located in Ventura, California, and their services include IT managed services and IT strategy consulting.Read More
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912Undisclosed10 - 49 employeesGold River, CALaunched in 2000, Business Advantage Consulting is a Business Consulting company. The team specializes in Business Consulting and IT managed services.Read More
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913Undisclosed50 - 249 employeesMurrieta, CAMPS International, a Cybersecurity company, is in Murrieta, California. They focus on Cybersecurity.Read More
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914Undisclosed10 - 49 employeesSan Diego, CAOmni Security Services is a Cybersecurity company. They are in San Diego, California and have small team. Their team provides Cybersecurity.Read More
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915Undisclosed2 - 9 employeesVista, CALaunched in 2009, RGM Consulting is an IT managed services and IT strategy consulting company. Their team focuses on IT managed services and IT strategy consulting.Read More
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916Undisclosed10 - 49 employeesWalnut Creek, CACCI Computer Jam, Inc. Is an IT managed services and IT strategy consulting company. Launched in 1995, the team focuses on IT managed services and IT strategy consulting.Read More
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917Undisclosed50 - 249 employeesWalnut Creek, CABPO Systems Inc., an IT managed services company, is located in Walnut Creek, California. The team provides IT managed services and IT strategy consulting.Read More
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918Undisclosed2 - 9 employeesWalnut Creek, CAColeman Information Technology Group, Inc. Is a small IT managed services company headquartered in Walnut Creek, California. Their services include IT managed services.Read More
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919Undisclosed2 - 9 employeesWalnut Creek, CAGrundig IT is a small IT managed services and IT strategy consulting company founded in 2004. Their team provides IT managed services and IT strategy consulting.Read More
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920Undisclosed2 - 9 employeesWalnut Creek, CALaunched in 2005, Netblaze Systems, Inc. Is a small Walnut Creek, California-based IT managed services company. Their services include IT managed services and Cybersecurity.Read More
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921Undisclosed2 - 9 employeesWalnut Creek, CACJS Associates, LLC is an IT managed services and Cybersecurity company. The Walnut Creek, California-based firm was founded in 2000. Their services include IT managed services and Cybersecurity.Read More
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922Undisclosed10 - 49 employeesStockton, CAPlus IT, Inc. Is an IT managed services company. They are in Stockton, California and have small team. Their services include IT managed services and Application Management & Support.Read More
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923Undisclosed2 - 9 employeesVista, CAHook Dimensional Imaging, an IT managed services company, was launched in 2017. They specializes in IT managed services.Read More
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924Undisclosed10 - 49 employeesVisalia, CAFounded in 1995, EMD Networking Services, Inc. Is a small Visalia, California-based IT managed services company. Their services include IT managed services.Read More
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925Undisclosed2 - 9 employeesVisalia, CAIT managed services and IT strategy consulting company ValleyExpetec, Inc. Is headquartered in Visalia, California. Their services include IT managed services and IT strategy consulting.Read More
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926Undisclosed2 - 9 employeesVisalia, CAIT managed services and IT strategy consulting company Trilotech was founded in 2002. The small team offers IT managed services and IT strategy consulting.Read More
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927Undisclosed2 - 9 employeesStockton, CAHeadquartered in Stockton, California, Netwerx-Management is a small IT managed services company. The team provides IT managed services.Read More
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928Undisclosed2 - 9 employeesStockton, CANetworking Xperts, a small IT managed services company, is headquartered in Stockton, California. Their services include IT managed services and Application Management & Support.Read More
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929Undisclosed2 - 9 employeesUpland, CAOptiva IT, LLC, an IT managed services and IT strategy consulting company, is headquartered in Upland, California. The team specializes in IT managed services and IT strategy consulting.Read More
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930Undisclosed2 - 9 employeesHayward, CAIT Less is an IT managed services company. Their small team is headquartered in Hayward, California. Their team focuses on 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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