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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391Undisclosed50 - 249 employeesSan Francisco, CAMidsize IT strategy consulting company BeyondID, is located in San Francisco, California. The team provides IT strategy consulting and cloud consulting & SI.Read More
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392$100,000+10 - 49 employeesBakersfield, CADiamond IT is an IT managed services company. They are in Bakersfield, California, and their services include IT managed services.Read More
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393$25,000+250 - 999 employeesNewark, CAKPI Partners is a Newark, California-based big data company. They provide BI & big data consulting & SI and IT strategy consulting.Read More
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394$1,000+50 - 249 employeesLos Angeles, CAGet Contact Help is an IT strategy consulting company. They were launched in 2018, and their services include IT strategy consulting and IT managed services.Read More
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395$5,000+10 - 49 employeesIrvine, CATechHeights - Business IT Services Orange County, an IT managed services company, is located in Irvine, California. Founded in 2007, the team specializes in IT managed services and Cybersecurity.Read More
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396Undisclosed250 - 999 employeesCypress, CALaunched in 2021, Method Technologies is a midsize IT strategy consulting company. Their services include IT strategy consulting and IT managed services.Read More
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397$1,000+10 - 49 employeesWest Hollywood, CASTG IT Consulting Group , an IT managed services company, is in West Hollywood, California. Founded in 2009, the team focuses on IT managed services and Cybersecurity.Read More
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398Undisclosed250 - 999 employeesSanta Ana, CALocated in Santa Ana, California, NexInfo Solutions is an ERP consulting and SI company. They provide ERP consulting and SI and IT managed services and were launched in 1999.Read More
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399$1,000+10 - 49 employeesSan Diego, CANatural Networks is an IT strategy consulting company. The firm is headquartered in San Diego, California. Their team specializes in IT strategy consulting and cloud consulting & SI.Read More
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400Undisclosed10 - 49 employeesNewark, CAIT strategy consulting company Renascence IT Consulting was launched in 2010. The team specializes in IT strategy consulting and cloud consulting & SI.Read More
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401$1,000+2 - 9 employeesPasadena, CAWinC Services, an IT strategy consulting company, is in Pasadena, California. They offer IT strategy consulting and IT managed services and were established in 2021.Read More
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402$1,000+10 - 49 employeesCarlsbad, CAEnteracloud is a small Carlsbad, California-based IT strategy consulting company. The team focuses on IT strategy consulting and cloud consulting & SI.Read More
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403$1,000+10 - 49 employeesFairfield, CAEstablished in 2008, nDataStor Inc, a small Cybersecurity company, is headquartered in Fairfield, California and Sacramento, California. Their team offers Cybersecurity and IT managed services.Read More
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404$5,000+10 - 49 employeesSan Carlos, CAEmagined Security is a Cybersecurity company. Launched in 2003, the team offers Cybersecurity.Read More
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405Undisclosed250 - 999 employeesSan Jose, CARelevance Lab, an IT strategy consulting company, was established in 2011. The midsize team provides IT strategy consulting and BI & big data consulting & SI.Read More
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406$5,000+10 - 49 employeesRiverside, CABiztek Solutions, Inc., an IT managed services company, offer IT managed services and Cybersecurity. They were launched in 2006.Read More
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407Undisclosed10 - 49 employeesGarden Grove, CATwintel Solutions, Inc. Is an IT strategy consulting company. They specialize in IT strategy consulting and were established in 2008. The company is located in Garden Grove, California.Read More
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408Undisclosed10 - 49 employeesSacramento, CAIT managed services company TLC Tech, Inc. Was launched in 2004. The agency provides IT managed services and IT strategy consulting, and is small.Read More
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409$10,000+2 - 9 employeesSanta Monica, CARyTECHan Consulting, an IT strategy consulting company, is headquartered in Santa Monica, California. The team focuses on IT strategy consulting and other IT consulting and SI.Read More
Clients
NetflixIndustries
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410$1,000+10 - 49 employeesSan Francisco, CAOut Task Inc is an IT managed services company. They offer IT managed services and Cybersecurity and were founded in 2021. The firm is based in San Francisco, California and Santa Clara, California.Read More
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411$1,000+10 - 49 employeesSan Francisco, CANetwork Right, a small IT strategy consulting and IT managed services company, is based in San Francisco, California. Their services include IT strategy consulting and IT managed services.Read More
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412$10,000+2 - 9 employeesEl Dorado Hills, CALocated in El Dorado Hills, California, Konfidi Health - Trusted Imaging Advisors is an IT strategy consulting company. Their services include IT strategy consulting and BI & big data consulting & SI.Read More
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413Undisclosed10 - 49 employeesSanta Ana, CAC3 Business Solutions Inc. Is an ERP consulting and SI company based in Santa Ana, California. Established in 1997, the team offers ERP consulting and SI and CRM consulting and SI.Read More
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414Undisclosed10 - 49 employeesSan Francisco, CAAccounting Micro Systems is an ERP consulting and SI company located in San Francisco, California. They specialize in ERP consulting and SI and Custom Software Development.Read More
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415Undisclosed2 - 9 employeesPalo Alto, CALocated in Paris, France and Palo Alto, California, Kimind is an unified communications consulting & SI company. They offer unified communications consulting & SI and cloud consulting & SI.Read More
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416Undisclosed50 - 249 employeesOntario, CAAgiline LLC is a CRM consulting and SI and web design agency based in Ontario, California and Bengaluru, India. They offer CRM consulting and SI and Web Design.Read More
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417Undisclosed2 - 9 employeesIrvine, CATallega Software is an ECM consulting and SI company. Based in Irvine, California, the firm was founded in 2005. Their team provides ECM consulting and SI and cloud consulting & SI.Read More
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418Undisclosed10 - 49 employeesLos Angeles, CAThe Tech Info Group is an IT managed services company. The company is located in Los Angeles, California. Their services include IT managed services and Cybersecurity.Read More
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419$5,000+2 - 9 employeesSan Mateo, CABased in San Mateo, California, Janus Networks is an IT managed services company. Launched in 2007, the team specializes in IT managed services and Custom Software Development.Read More
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420$5,000+10 - 49 employeesBelmont, CAMPA Networks, an IT managed services company, was launched in 1983. The agency focuses on IT managed services and cloud consulting & SI, and is small.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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