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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$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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721Undisclosed250 - 999 employeesIrvine, CALaunched in 2018, ThinkAiCorp, a midsize big data analytics company, is in Irvine, California. Their team specializes in BI & big data consulting & SI and Mobile App Development.Read More
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722Undisclosed1,000 - 9,999 employeesWalnut Creek, CAHeadquartered in Mercer Island, Washington, Exadel is a midsize business consulting company. They focus on business consulting and were founded in 2001.Read More
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723$5,000+50 - 249 employeesSan Jose, CAPrediktive is a midsize IT staff augmentation company. They specialize in IT staff augmentation, cybersecurity, and business consulting and were founded in 2017. The company is located in San Jose, California.Read More
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724$1,000+2 - 9 employeesLos Angeles, CAEstablished in 2024, JustCRM is a small Los Angeles, California-based CRM consulting and SI company. Their services include CRM consulting and SI and BI & big data consulting & SI.Read More
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725Undisclosed2 - 9 employeesIrvine, CALocated in Irvine, California, AI Net Strategies is an IT strategy consulting company. The team offers IT strategy consulting and BI & big data consulting & SI.Read More
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726$1,000+10 - 49 employeesPalo Alto, CADataplatr is a big data company. They are located in Palo Alto, California and have small team of experts. Their services include BI & big data consulting & SI and AI Consulting.Read More
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727$1,000+10 - 49 employeesSan Francisco, CATransformyze is a CRM consulting and SI company. Founded in 2022, the company is in San Francisco, California. Their services include CRM consulting and SI and IT managed services.Read More
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728$50,000+10 - 49 employeesFremont, CAFounded in 2015, GHK Technologies Inc is a CRM consulting and SI company. The company specializes in CRM consulting and SI and ECM consulting and SI, and is small.Read More
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729$10,000+2 - 9 employeesConcord, CAFounded in 2019, Gadgetsick is a call center company and IT managed services company. Their services include Call Center Services and IT managed services.Read More
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730$25,000+10 - 49 employeesLarkspur, CATerrace Consulting, Inc. Is a small ERP consulting and SI company headquartered in Larkspur, California. Their services include ERP consulting and SI and Custom Software Development.Read More
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731Undisclosed50 - 249 employeesSan Francisco, CADPP Tech, Inc. Is a software development firm in San Francisco, California. They focus on Custom Software Development and BI & big data consulting & SI.Read More
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732Undisclosed250 - 999 employeesLos Angeles, CAIntogreat Solutions is a Marketing Strategy company. The team offers Marketing Strategy and IT strategy consulting and is in Los Angeles, California.Read More
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733$5,000+10 - 49 employeesCampbell, CAAgile Datapro, Inc, an AI development company, focus on Artificial Intelligence and IT staff augmentation. They were established in 2020.Read More
Clients
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734$25,000+250 - 999 employeesLaguna Beach, CADatamam is a custom software development company. The firm is located in Laguna Beach, California. Their team focuses on Custom Software Development and Market Research.Read More
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735$1,000+10 - 49 employeesSanta Monica, CAGBT Technologies, Inc. Is a small cloud consulting & SI company launched in 2009. Their services include cloud consulting & SI and Cybersecurity.Read More
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736Undisclosed50 - 249 employeesSan Diego, CAPrediqTank is a Product Design company. They specialize in Product Design and BI & big data consulting & SI and are based in San Diego, California.Read More
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737$1,000+50 - 249 employeesAnaheim, CAEQuestever - ERP, CRM Implementation & Digital Marketing Company is a SEO agency. Launched in 2014, the company offers Search Engine Optimization and CRM consulting and SI.Read More
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738$25,000+50 - 249 employeesBeverly Hills, CAWeb design company Friflex is located in Beverly Hills, California. Their services include Web Design and UX/UI Design.Read More
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739$1,000+50 - 249 employeesPleasanton, CAObsium is a cloud consulting & SI company. In Pleasanton, California, their midsize team provides cloud consulting & SI and DevOps Managed Services. The company was launched in 2025.Read More
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740$75,000+50 - 249 employeesSanta Monica, CAIxStrata, Inc., a software development company, was established in 2011. The team provides Custom Software Development and BI & big data consulting & SI.Read More
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741$1,000+2 - 9 employeesLos Angeles, CAInternetize.Me, a custom software development company, is in Los Angeles, California. They specialize in Custom Software Development and IT strategy consulting.Read More
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742$1,000+2 - 9 employeesIrvine, CAEagleEye IT is an IT managed services and IT staff augmentation company. The company is based in Irvine, California. Their team provides IT managed services and IT staff augmentation.Read More
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743Undisclosed2 - 9 employeesThousand Oaks, CANinecoves is a small big data company and AI firm based in Thousand Oaks, California. The team focuses on BI & big data consulting & SI and Artificial Intelligence.Read More
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744$25,000+10 - 49 employeesMountain View, CALocated in Charlotte, North Carolina; Mountain View, California and Miraflores, Peru, Equals 11 is a CRM consulting and SI company. Founded in 2022, the small team offers CRM consulting and SI, IT managed services, IT staff augmentation, Low/No Code Development, and more.Read More
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745$25,000+50 - 249 employeesNewport Beach, CAEvinex is a midsize IT staff augmentation company headquartered in Newport Beach, California. The team provides IT staff augmentation and Staffing.Read More
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746$10,000+50 - 249 employeesSan Jose, CABusiness Consulting company Tredence is based in San Jose, California. They offer Business Consulting and IT strategy consulting and were established in 1989.Read More
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747$5,000+10 - 49 employeesOakland, CALimeTech is a mobile app development firm headquartered in Oakland, California and Boston, Massachusetts. The team specializes in Mobile App Development and Web Development.Read More
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748$10,000+50 - 249 employeesCalabasas, CADaten Technology Solutions is a cloud consulting & SI company. Established in 2021, their team provides cloud consulting & SI and IoT development.Read More
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749Undisclosed50 - 249 employeesSan Jose, CAAssetpulse is an IoT development company. The San Jose, California-based firm was launched in 2006. Their team specializes in IoT development and IT strategy consulting.Read More
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750$1,000+50 - 249 employeesInglewood, CAFounded in 2008, Faststream Technologies is an IoT development company. The company focuses on IoT development and BI & big data consulting & SI, and is midsize.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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