Top 100 IT Services Companies in California
The Best of September 2026Looking 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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1591$25,000+10 - 49 employeesLos Angeles, CACOCO Future Technologies is an UX agency established in 2021. Headquartered in Los Angeles, California, the team offers UX/UI Design and Mobile App Development.Read More
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1592$250,000+1,000 - 9,999 employeesSanta Clara, CAInfostretch is a large Application Testing company headquartered in Santa Clara, California and New York, New York. Their services include Application Testing and Enterprise App Modernization.Read More
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1593$1,000+50 - 249 employeesMission Viejo, CALaunched in 2006, Infoshare Systems, Inc is a branding company. The team specializes in Branding and Digital Strategy.Read More
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1594$250,000+10 - 49 employeesIrvine, CAStfinetech is a custom software development firm. Their small team is headquartered in Irvine, California. The agency provides Custom Software Development, IT strategy consulting, and Recruiting.Read More
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1595$1,000+10 - 49 employeesLos Angeles, CAMARRA AI is a Marketing Strategy company. They focus on Marketing Strategy and IT strategy consulting and are headquartered in Los Angeles, California.Read More
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1596$10,000+10 - 49 employeesSan Francisco, CADevsHire.ai is an IT staff augmentation company in San Francisco, California. Their services include IT staff augmentation and IT managed services.Read More
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1597$5,000+10 - 49 employeesIrvine, CAGenerative AI company 3X Data Engineering is in Irvine, California. The team provides Generative AI and Custom Software Development.Read More
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1598Undisclosed10 - 49 employeesBurlingame, CAAdveraTech LLC is an AI firm. They were founded in 2026 and provide Artificial Intelligence and Advertising.Read More
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1599$25,000+10 - 49 employeesLos Angeles, CAAr3Tek is a software development firm established in 2020. Their small team is headquartered in and specializes in custom software development, graphic design, and cloud consulting & SI.Read More
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1600$5,000+250 - 999 employeesCarmichael, CAIntelligent Technical Solutions is a midsize Las Vegas, Nevada-based IT managed services company. The team focuses on IT managed services and Cybersecurity.Read More
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1601$5,000+2 - 9 employeesSan Diego, CAEmail Marketing company Vulgar was established in 2021. Based in San Diego, California, the team specializes in Email Marketing and Social Media Marketing.Read More
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1602Undisclosed10 - 49 employeesEl Segundo, CAGuide Technologies, a small ERP consulting and SI company, is based in Cincinnati, Ohio and El Segundo, California. The team provides ERP consulting and SI and Manufacturing Consulting.Read More
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1603$5,000+10 - 49 employeesRedwood City, CATecAvy is an Advertising company located in Gurugram, India and Redwood City, California. They focus on Advertising and Back Office Outsourcing.Read More
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1604$1,000+10 - 49 employeesLos Angeles, CALaunched in 2026, AdamIS Tech is a web design company. The team provides Web Design and Web Development.Read More
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1605Undisclosed250 - 999 employeesBurbank, CACore BTS, an IT managed services company, was established in 1984. The agency offers IT managed services and IT strategy consulting.Read More
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1606$1,000+2 - 9 employeesSacramento, CAIG Digital Lab, an AI development company, was founded in 2025. Located in Sacramento, California, the team offers Artificial Intelligence and Custom Software Development.Read More
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1607Undisclosed50 - 249 employeesPleasanton, CANetwoven, an unified communications consulting & SI company, is headquartered in Pleasanton, California and Kolkata, India. They provide unified communications consulting & SI and IT managed services.Read More
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1608$10,000+50 - 249 employeesSan Jose, CAThirdEye Data is an AI firm. Launched in 2010, the midsize firm is headquartered in San Jose, California; Kolkata, India; Montréal, Canada and Hubballi, India. Their team offers Artificial Intelligence, BI & big data consulting & SI, cloud consulting & SI, IT staff augmentation, and more.Read More
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1609$1,000+2 - 9 employeesLos Angeles, CA2X Market, a CRM consulting and SI company, is in Los Angeles, California. They offer CRM consulting and SI and AI Consulting.Read More
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1610$5,000+2 - 9 employeesSan Diego, CABaur Software, a Digital Strategy company, was established in 2020. The company specializes in Digital Strategy and Artificial Intelligence, and is small.Read More
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1611$5,000+2 - 9 employeesTracy, CAPosioAi is an AI Consulting company. In Tracy, California, the team offers AI Consulting and Artificial Intelligence.Read More
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1612Undisclosed250 - 999 employeesInglewood, CAIT managed services company Dataprise was established in 1995. Their midsize team is in Rockville, Maryland; Dallas, Texas; Port St. Lucie, Florida and New York, New York and focuses on IT managed services, Cybersecurity, cloud consulting & SI, and IT strategy consulting.Read More
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1613$1,000+50 - 249 employeesCamarillo, CAValeo Networks Inc. Is an IT managed services company. Their team is in Rockledge, Florida and Camarillo, California and provides IT managed services and Cybersecurity.Read More
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1614$100,000+50 - 249 employeesCulver City, CARead More
Application development company Stateside Agency is located in Culver City, California and San José, Costa Rica. The midsize team offers mobile app development, web development, ux/ui design, e-commerce development, and more. The agency was founded in 2013.
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1615Undisclosed250 - 999 employeesLos Angeles, CAFounded in 2010, Pro-Tek Consulting is a Business Consulting company. Their services include Business Consulting and other IT consulting and SI.Read More
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1616Undisclosed250 - 999 employeesNewark, CATA Digital is a web development company. In Newark, California, the team offers Web Development and Mobile App Development.Read More
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1617Undisclosed250 - 999 employeesSan Francisco, CAWideOrbit is a midsize Advertising company in San Francisco, California and City of London, England. The team provides Advertising and Marketing Strategy.Read More
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1618Undisclosed250 - 999 employeesSanta Clarita, CAKRG Technologies Inc. Is an Application Testing company. The Santa Clarita, California-based agency focuses on Application Testing and BI & big data consulting & SI.Read More
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1619$1,000+10 - 49 employeesSan Francisco, CANaeemic is a small Karachi, Pakistan-based IT strategy consulting company. Their services include IT strategy consulting and Cybersecurity.Read More
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1620$1,000+10 - 49 employeesOakland, CAScalero is a small Email Marketing company based in Oakland, California; New York, New York; Ciudad de México, Mexico and København, Denmark. Launched in 2019, the team provides Email Marketing and CRM consulting and SI.Read More
Industries
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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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