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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781Undisclosed10 - 49 employeesCarlsbad, CALa Costa Telecom, an IT managed services company, was established in 2025. The company focuses on IT managed services and Call Center Services, and is small.Read More
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782Undisclosed250 - 999 employeesSan Francisco, CALaunched in 2016, Alpha Cube is an other IT consulting and SI company. The midsize team offers other IT consulting and SI and Branding.Read More
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783$1,000+10 - 49 employeesLaguna Niguel, CASmith Consulting is an e-commerce development company. The team provides E-Commerce Development and Custom Software Development, and the firm is based in Laguna Niguel, California.Read More
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784$5,000+Freelancer employeesLaguna Hills, CAAlfaLINQ Business Solutions, LLC is an e-commerce development company located in Laguna Hills, California. They provide E-Commerce Development and ERP consulting and SI.Read More
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785$10,000+50 - 249 employeesRiverside, CAIn Riverside, California, Q-vantage is a midsize social media marketing company. Their services include Social Media Marketing and IT strategy consulting.Read More
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786$1,000+2 - 9 employeesSan Francisco, CAGeniusHub, a CRM consulting and SI company, was founded in 2018. They offers CRM consulting and SI and AI Consulting.Read More
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787$10,000+10 - 49 employeesAuburn, CACustom software development firm Specter is in Auburn, California. The company focuses on custom software development, search engine optimization, web development, digital strategy, and more and is small.The company was launched in 2015.Read More
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788$25,000+50 - 249 employeesSan Francisco, CAFounded in 2012, nClouds Inc. Is a midsize Microservices Architecture Services company. Their team offers Microservices Architecture Services and BI & big data consulting & SI.Read More
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789$1,000+10 - 49 employeesTulare, CAEstablished in 2019, Latest Lead is a data analytics company. The firm offers BI & big data consulting & SI and Business Consulting.Read More
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790$1,000+250 - 999 employeesFremont, CAElsner Store is a Fremont, California-based IT strategy consulting company. The team offers IT strategy consulting and Pay Per Click.Read More
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791$10,000+10 - 49 employeesLos Angeles, CARead More
Cloudflex, a custom software development firm, is in Kyiv, Ukraine. The small team specializes in custom software development, mobile app development, web development, Artificial Intelligence, and more. The firm was founded in 2018.
Clients
YazaIndustries
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792$1,000+50 - 249 employeesTorrance, CATGS Trans Global Services is a midsize IT strategy consulting company founded in 2016. Their services include IT strategy consulting and Web Development.Read More
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793Undisclosed2 - 9 employeesRedwood City, CAMoblize.IT LLC is a custom software development company. Launched in 2017, the team focuses on Custom Software Development and Artificial Intelligence. The firm is located in Redwood City, California.Read More
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794$5,000+2 - 9 employeesLos Angeles, CATechonomics, a cloud consulting & SI company, was founded in 2013. The team focuses on cloud consulting & SI and IT strategy consulting.Read More
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795$5,000+2 - 9 employeesWest Hollywood, CAFounded in 2020, Completing, a small CRM consulting and SI company, is headquartered in West Hollywood, California. Their services include CRM consulting and SI and IT managed services.Read More
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796$5,000+2 - 9 employeesAustin, TXRead More
Cybersecurity company Framework Security was established in 2019. The small Austin, Texas-based team focuses on Cybersecurity.
Clients
Volo SolutionsIndustries
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797Undisclosed10 - 49 employeesSan Francisco, CAMSR Communications is a Content Marketing company launched in 1998. The firm focuses on Content Marketing and Event Marketing.Read More
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798$25,000+250 - 999 employeesSan Diego, CAHeadquartered in San Diego, California; Wrocław, Poland; San Rafael, Costa Rica and Warszawa, Poland, EffectiveSoft is an AI Agents company. The midsize firm was founded in 2003. Their services include AI Agents, Custom Software Development, cloud consulting & SI, Artificial Intelligence, and more.Read More
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799$25,000+10 - 49 employeesBurlingame, CABXGI is a Burlingame, California-based IT staff augmentation company. They provide IT staff augmentation and Custom Software Development.Read More
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800Undisclosed10 - 49 employeesSan Jose, CAFounded in 2010, Thinking Hut IT Solutions Pvt. Ltd. Is a small custom software development firm. Their services include Custom Software Development and Enterprise App Modernization.Read More
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801$5,000+2 - 9 employeesSan Jose, CAAppeX Technology is a San Jose, California-based custom software development company. They specialize in Custom Software Development and IT strategy consulting and were launched in 2019.Read More
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802$10,000+50 - 249 employeesSan Diego, CARead More
IT strategy consulting company Meriplex Communications was established in 2001. In Houston, Texas, their midsize team focuses on IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.
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803$1,000+10 - 49 employeesIrvine, CAVision33, an ERP consulting and SI company, was established in 1992. The agency specializes in ERP consulting and SI and CRM consulting and SI, and is small.Read More
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804$1,000+10 - 49 employeesLong Beach, CABond Consulting Services is an ERP consulting and SI company founded in 2000. The firm focuses on ERP consulting and SI and CRM consulting and SI.Read More
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805$1,000+10 - 49 employeesSan Jose, CATensoft is an ERP consulting and SI company. In San Jose, California, the team specializes in ERP consulting and SI.Read More
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806$1,000+250 - 999 employeesSan Ramon, CAArmanino McKenna is an ERP consulting and SI company located in San Ramon, California and Los Angeles, California. The team specializes in ERP consulting and SI and CRM consulting and SI.Read More
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807Undisclosed10 - 49 employeesSanta Barbara, CAExperlogix is a CRM consulting and SI company. Established in 2002, the team focuses on CRM consulting and SI and ERP consulting and SI. The company is located in Santa Barbara, California.Read More
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808Undisclosed250 - 999 employeesIrvine, CASolugenix is an ERP consulting and SI company. The Irvine, California-based agency was launched in 1969. Their services include ERP consulting and SI and IT managed services.Read More
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809Undisclosed50 - 249 employeesLos Angeles, CASolver is a midsize CRM consulting and SI company founded in 1996. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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810Undisclosed50 - 249 employeesTorrance, CAHeadquartered in Torrance, California, Calsoft Systems is a midsize CRM consulting and SI and ERP consulting and SI company. Their services include CRM consulting and SI and ERP consulting and SI.Read More
Industries
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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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