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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301$10,000+10 - 49 employeesSan Ramon, CACloudperitus, an IT strategy consulting company, is headquartered in San Ramon, California. They focus on IT strategy consulting and cloud consulting & SI and were launched in 2020.Read More
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302Undisclosed2 - 9 employeesSan Jose, CAMyers Network Solutions is a cloud consulting & SI company. They are based in San Jose, California and have small team. They focus on cloud consulting & SI and IT managed services.Read More
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303$1,000+2 - 9 employeesSan Jose, CAEstablished in 2019, LOGIQ is an IT managed services company. The agency focuses on IT managed services, and is small.Read More
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304Undisclosed50 - 249 employeesCeres, CAMidsize IT managed services and AI firm IntelliSite, is headquartered in Fort Mill, South Carolina and Ceres, California. Their services include IT managed services and Artificial Intelligence.Read More
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305$5,000+10,000+ employeesSunnyvale, CAFounded in 1992, NetApp is a large big data company. Their team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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306$10,000+1,000 - 9,999 employeesSan Francisco, CAAKQA is a CRM consulting and SI company. In San Francisco, California and London, England, the firm was founded in 1994. Their team provides CRM consulting and SI and E-Commerce Development.Read More
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NikeIndustries
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307$5,000+250 - 999 employeesSan Jose, CAFounded in 2004, Netenrich, Inc. Is a Cybersecurity company. The team specializes in Cybersecurity and cloud consulting & SI.Read More
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308Undisclosed50 - 249 employeesSanta Barbara, CAOntraport is a CRM consulting and SI company. The Santa Barbara, California-based company was launched in 2008. Their team provides CRM consulting and SI and Email Marketing.Read More
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309Undisclosed10,000+ employeesAliso Viejo, CAUST is a Market Research company. The team is based in Aliso Viejo, California, and their services include Market Research and Digital Strategy.Read More
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310$10,000+250 - 999 employeesSan Diego, CAVerimatrix is a Cybersecurity company. Located in San Diego, California and Meyreuil, France, the agency focuses on Cybersecurity.Read More
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311Undisclosed10 - 49 employeesPalo Alto, CAAnjuna Security, Inc. Is a Palo Alto, California-based IT strategy consulting company. They provide IT strategy consulting and cloud consulting & SI.Read More
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312$5,000+50 - 249 employeesRiverside, CADonWeb is an Email Marketing and IT managed services company. Founded in 2002, their team provides Email Marketing and IT managed services.Read More
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313Undisclosed250 - 999 employeesSan Diego, CAESET is a Cybersecurity company. Headquartered in San Diego, California, their midsize team focuses on Cybersecurity. The agency was established in 1992.Read More
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314$5,000+10 - 49 employeesLos Angeles, CASmogu.Studio is a small sales outsourcing company. Based in Tel Aviv-Yafo, Israel, the agency was founded in 2022. Their team specializes in sales outsourcing, market research, and IT strategy consulting.Read More
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315Undisclosed2 - 9 employeesCarlsbad, CAMytek Pros is an IT managed services company headquartered in Carlsbad, California. The firm offers IT managed services, IT strategy consulting, cybersecurity, other IT consulting and SI, and more and has a small team.The firm was founded in 2019.Read More
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Community HousingWorks Conam Property Management Wakeland Housing Linc HousingIndustries
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316$5,000+10 - 49 employeesIrvine, CAKaufmanIT, Inc. Is an IT managed services company. The small Irvine, California-based team focuses on IT managed services and cloud consulting & SI. The agency was launched in 2010.Read More
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317$10,000+50 - 249 employeesRocklin, CABlast Analytics & Marketing is a data analytics company. They were established in 1999 and specialize in BI & big data consulting & SI and Conversion Optimization.Read More
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318$1,000+10 - 49 employeesSan Ramon, CAAquilaclouds Inc, a cloud consulting & SI company, was founded in 2017. The team provides cloud consulting & SI and BI & big data consulting & SI.Read More
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319$1,000+10 - 49 employeesSunnyvale, CALocated in Sunnyvale, California, Belkasoft is a Cybersecurity company. The team offers Cybersecurity and Artificial Intelligence.Read More
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320$100,000+10 - 49 employeesOakland, CARead More
Idea2Form is a full-service collaborative design studio founded in 2018 and based in Oakland, Calif. Their team of more than 10 offers branding, social media marketing, and web design solutions to clients that work in industries such as nonprofit, education, and arts.
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Emerson CollectiveIndustries
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321$5,000+250 - 999 employeesSan Jose, CASkillNet Solutions Inc is a midsize IT strategy consulting company established in 1996. Their services include IT strategy consulting and cloud consulting & SI.Read More
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322$5,000+10 - 49 employeesBerkeley, CA42 Inc is a small IT managed services company. They provide IT managed services and cloud consulting & SI and were founded in 1992.Read More
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323$5,000+2 - 9 employeesSan Jose, CAHeadquartered in San Jose, California and Menlo Park, California, Bay Networks Inc. Is an IT managed services company. They offer IT managed services and Cybersecurity and were established in 2008.Read More
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324$1,000+10 - 49 employeesLos Angeles, CAVirtoSoftware is a software development company. Launched in 2009, the agency provides Custom Software Development and IT strategy consulting.Read More
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325$5,000+10 - 49 employeesSan Diego, CAAgile IT, a cloud consulting & SI company, was established in 2006. The team offers cloud consulting & SI and IT managed services.Read More
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326Undisclosed250 - 999 employeesFremont, CAIT strategy consulting company BRIDGEi2i Analytics Solutions Inc. Provides IT strategy consulting and BI & big data consulting & SI. They were launched in 2011.Read More
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327Undisclosed50 - 249 employeesSan Jose, CABellSoft, an other IT consulting and SI company, is based in San Jose, California. Established in 2017, the team focuses on other IT consulting and SI and cloud consulting & SI.Read More
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328Undisclosed50 - 249 employeesIrvine, CABlytheco, an ERP consulting and SI company, was launched in 1980. The company specializes in ERP consulting and SI and CRM consulting and SI.Read More
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329Undisclosed10 - 49 employeesSan Francisco, CAIBeesoft is an IT managed services company launched in 2011. The team offers IT managed services.Read More
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330$1,000+2 - 9 employeesEl Cajon, CAJunxion Technology LLC is an IT managed services company. The team specializes in IT managed services and IT strategy consulting and is in El Cajon, California.Read More
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