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.
List of the Best California IT Companies
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241$1,000+50 - 249 employeesNapa, CAEndsight is an IT managed services company in Napa, California. They focus on IT managed services and IT strategy consulting and were founded in 2004.Read More
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242$5,000+10 - 49 employeesLos Angeles, CARead More
indusriaLAX is a custom software and application development company based in Los Angeles, Costa Mesa, and San Diego, Calif. Founded in 2012, their team of less than 50 provides big and small businesses through CRM consulting, custom software development, and web development.
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Car Rental Help CenterIndustries
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243$1,000+2 - 9 employeesSan Diego, CAABUSINESS is a cloud consulting & SI company. They provide cloud consulting & SI and CRM consulting and SI and were established in 2019.Read More
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244$10,000+10 - 49 employeesLos Angeles, CARead More
Launched in 2007, Formula is a IT strategy consulting company. The large team provides IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, IT staff augmentation, and more. The agency is headquartered in Los Angeles, California.
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245$5,000+2 - 9 employeesSan Francisco, CAMATAX is a small Accounting company. They provide Accounting, AI Agents, Business Consulting, and cloud consulting & SI and were established in 2006. The agency is in San Francisco, California.Read More
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246$10,000+1,000 - 9,999 employeesWalnut Creek, CAEstablished in 2002, Vaco is a large Brentwood, Tennessee-based IT managed services company. Their team specializes in IT managed services and cloud consulting & SI.Read More
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247$10,000+10 - 49 employeesSanta Cruz, CALaunched in 2017, SuiteCentric is a small Santa Cruz, California-based ERP consulting and SI company. Their services include ERP consulting and SI and CRM consulting and SI.Read More
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248Undisclosed10 - 49 employeesSan Diego, CAStratus10 is a cloud consulting & SI company. The San Diego, California-based team specializes in cloud consulting & SI.Read More
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249$50,000+50 - 249 employeesSan Francisco, CAPak Interactive Studio (PIS) is a custom software development firm located in San Francisco, California; Pirbaba, Pakistan and Mingora, Pakistan. The midsize team specializes in Custom Software Development, AR/VR development, ERP consulting and SI, Video Production, and more and was founded in 2025.Read More
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250Undisclosed1,000 - 9,999 employeesStockton, CAEstablished in 2008, MSRcosmos LLC is an Application Management & Support company. Based in Stockton, California, the team focuses on Application Management & Support and ERP consulting and SI.Read More
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251$1,000+2 - 9 employeesLos Angeles, CARead More
Themis Web Technologies is a software development company based in Los Angeles, California. Founded in 2007, they are a sole proprietorship that provides web development, e-commerce development, custom software development, and enterprise app modernization.
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Incited MediaIndustries
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252$25,000+1,000 - 9,999 employeesLos Angeles, CANetsol Technologies Inc. Is a Cybersecurity company. Based in Los Angeles, California and London, England, the team specializes in Cybersecurity and cloud consulting & SI.Read More
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253$10,000+2 - 9 employeesSanta Cruz, CARead More
Cloud Brigade is a small software development company. In Santa Cruz, California, the firm was founded in 2005. Their team specializes in custom software development, Artificial Intelligence, IT managed services, web development, and more.
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254Undisclosed2 - 9 employeesWalnut Creek, CASmall IT strategy consulting company The Godfather of Tech, Professor Timothy E. Bates, is based in Walnut Creek, California. Founded in 2010, the team provides IT strategy consulting, cybersecurity, business consulting, corporate training & coaching, and more.Read More
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255$50,000+1,000 - 9,999 employeesFremont, CAMilestone Technologies Inc is an IT strategy consulting company. The firm is in Fremont, California and Phoenix, Arizona. Their team specializes in IT strategy consulting and cloud consulting & SI.Read More
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256Undisclosed50 - 249 employeesLos Angeles, CABased in San Antonio, Texas and Los Angeles, California, Velonex Technologies is an IT managed services company. They focus on IT managed services and Cybersecurity.Read More
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257Undisclosed2 - 9 employeesEncinitas, CARead More
Agency73 is a development shop based in Encinitas, Calif. Founded in 2017, Agency73's team of about 10 employees specializes in providing custom software development, web development, and e-commerce development services for mid-market and enterprise businesses in the healthcare, advertising and IT industries.
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IntuitIndustries
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258$1,000+50 - 249 employeesSan Francisco, CAAI bees, a Content Marketing company, is located in San Francisco, California and Hamburg, Germany. They offer Content Marketing, Sales Outsourcing, Call Center Services, Search Engine Optimization, and more and were established in 2018.Read More
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COPADOIndustries
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259Undisclosed2 - 9 employeesAnaheim, CARead More
Founded in 2001, Willing Minds is an IT managed services provider based in Anaheim, Calif. They specialize in disaster recovery, help desk, network, and security services.
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260Undisclosed250 - 999 employeesSan Francisco, CARead More
Fastly is an edge cloud platform for developers founded in 2011in San Francisco. With over 900 employees scattered in various international locations, they provide cloud consulting, systems integration, IT consulting, and more.
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261Undisclosed2 - 9 employeesLake Forest, CARead More
SQL Solutions Group is an IT strategy consulting company. The Lake Forest, California-based firm was launched in 2010. The small team focuses on IT strategy consulting, BI & big data consulting & SI, IT managed services, and custom software development.
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262Undisclosed1,000 - 9,999 employeesCampbell, CARead More
Based in Campbell, California, Barracuda is a large cloud consulting & SI company. The team specializes in cloud consulting & SI, cybersecurity, other IT consulting and SI, and application management & support.
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263Undisclosed10 - 49 employeesLos Angeles, CAAI firm and business intelligence company IV.AI is located in Los Angeles, California. Founded in 2016, the team focuses on Artificial Intelligence and BI & big data consulting & SI.Read More
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264Undisclosed50 - 249 employeesEl Segundo, CAVeganext is a Cybersecurity company founded in 2017. The midsize team focuses on Cybersecurity and IT managed services.Read More
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265$1,000+2 - 9 employeesPleasanton, CAObsium is a cloud consulting & SI company launched in 2025. They are in Pleasanton, California and have a small team. Their services include cloud consulting & SI, DevOps Managed Services, and Engineering.Read More
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266$100,000+2 - 9 employeesSacramento, CAPragmint is a big data company. Located in Sacramento, California, their small team offers BI & big data consulting & SI, Custom Software Development, Enterprise App Modernization, IT strategy consulting, and more. The firm was founded in 2021.Read More
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267Undisclosed10 - 49 employeesIrvine, CABig data company Xelleration LLC is in Irvine, California. Launched in 2001, the team provides BI & big data consulting & SI and cloud consulting & SI.Read More
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268Undisclosed10,000+ employeesSan Jose, CARead More
FLEX, a large product design company, is located in Singapore, Singapore and San Jose, California. Established in 1969, the team provides product design, other design, and logistics & supply chain consulting.
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269Undisclosed10 - 49 employeesLos Angeles, CAMargasoft is a small Los Angeles, California-based Litigation Support Services company. They specialize in Litigation Support Services, Custom Software Development, Artificial Intelligence, IT managed services, and more and were established in 2005.Read More
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Johnson & JohnsonIndustries
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270$1,000+2 - 9 employeesCorona, CALocated in Corona, California, WellomyTech is an IT managed services company. They offer IT managed services, Artificial Intelligence, custom software development, enterprise app modernization, and more and were established in 2021.Read More
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