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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$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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2281$1,000+10 - 49 employeesNovato, CAVarchas IT Systems pvt Ltd is a web design agency. The small Faridabad, India-based team specializes in Web Design and Digital Strategy. The firm was launched in 2014.Read More
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2282$5,000+50 - 249 employeesJaipur, IndiaDianApps is an app development company based in ST. Petersburg, Florida; Jaipur, India; Gurugram, India and Mindarie, Australia. The midsize company was launched in 2017. Their team provides Mobile App Development, CRM consulting and SI, Web Development, Low/No Code Development, and more.Read More
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2283$5,000+10 - 49 employeesSan Diego, CALabKey is a small software development company located in Seattle, Washington and San Diego, California. The team offers Custom Software Development and cloud consulting & SI.Read More
Clients
MITIndustries
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2284$10,000+10 - 49 employeesSan Francisco, CAPraetorian is a Cybersecurity company. Their small team is in Austin, Texas and San Francisco, California and specializes in Cybersecurity. The agency was launched in 2010.Read More
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2285Undisclosed2 - 9 employeesWestminster, CALuckae Web Solutions, LLC is a web design company. Based in Westminster, California, their small team offers Web Design and Web Development. The company was launched in 2014.Read More
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2286Undisclosed2 - 9 employeesPasadena, CAFounded in 2003, WYNK Marketing is an Email Marketing company. The small team specializes in Email Marketing and Graphic Design.Read More
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2287Undisclosed2 - 9 employeesLadera Ranch, CABlank Chapters Advisory is a small PR firm located in Ladera Ranch, California. The team specializes in Public Relations and Market Research.Read More
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2288$5,000+50 - 249 employeesSan Jose, CAXetech is a cloud consulting & SI company. They focus on cloud consulting & SI and Custom Software Development and are located in Frimley, England and San Jose, California.Read More
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2289$25,000+250 - 999 employeesAliso Viejo, CAEstablished in 2009, ITRex is an artificial intelligence development company. The firm focuses on Artificial Intelligence, BI & big data consulting & SI, Custom Software Development, IoT development, and more and has a midsize team.Read More
Clients
Dollar Shave ClubIndustries
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2290Undisclosed1,000 - 9,999 employeesSan Francisco, CAHunton Andrews Kurth LLP is a Cybersecurity company. Located in Washington, District of Columbia and San Francisco, California, the firm specializes in Cybersecurity and Back Office Outsourcing.Read More
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2291Undisclosed10 - 49 employeesWinston-Salem, NCA Society US is a Business Consulting company. They were founded in 2011 and specialize in Business Consulting and Engineering.Read More
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2292Undisclosed250 - 999 employeesRedwood City, CARead More
IT Convergence is a full-service IT management and development company based in Redwood City, Calif. The firm, which was founded in 1998, has additional offices in Hyderabad, India, Shanghai, and Buenos Aires, Argentina. Their service offering includes ERP consulting, cloud consulting, business intelligence, and software development.
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2293$5,000+2 - 9 employeesLong Beach, CASmall Advertising company iTrust Marketing, is headquartered in Long Beach, California. Their services include Advertising and Branding.Read More
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2294Undisclosed50 - 249 employeesSanta Clara, CAFounded in 2007, Neova Solutions is a midsize Santa Clara, California-based Robotics Process Automation company. Their services include Robotics Process Automation and DevOps Managed Services.Read More
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2295UndisclosedFreelancer employeesLos Angeles, CAEstablished in 2023, Fun Guy Growth Marketing is a Fractional CMO Services company. The company focuses on Fractional CMO Services and Marketing Strategy, and is small.Read More
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2296UndisclosedFreelancer employeesSanta Clarita, CADesignAdict, a social media marketing company, was founded in 2016. They provides Social Media Marketing and Email Marketing.Read More
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2297UndisclosedFreelancer employeesLos Angeles, CAHarvard Park Digital is a public relations agency located in Los Angeles, California. They specialize in Public Relations and Content Marketing and were established in 2015.Read More
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2298UndisclosedFreelancer employeesRialto, CAWeb Guy Nick is an Advertising company. Founded in 2006, the team focuses on Advertising and IT managed services.Read More
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2299Undisclosed10 - 49 employeesUnion City, CANv it experts, a web design company, is located in Union City, California and New Delhi, India. They focus on Web Design and E-Commerce Development and were launched in 2021.Read More
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2300$10,000+50 - 249 employeesMission Viejo, CARead More
Founded in 2013, AccelOne is an artificial intelligence firm. They are headquartered in Kirkland, Washington; Buenos Aires, Argentina and Mission Viejo, California and have a midsize team. The firm offers Artificial Intelligence, Generative AI, IT managed services, IT staff augmentation, and more.
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XapoIndustries
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2301$5,000+250 - 999 employeesMountain View, CARead More
Coretelligent is an IT managed services company founded in 2006. The firm specializes in IT managed services, IT strategy consulting, and cloud consulting & SI and has a midsize team. The firm is based in Westwood, Massachusetts; New York, New York; Philadelphia, Pennsylvania and San Carlos, California.
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2302$5,000+250 - 999 employeesPleasanton, CANet at Work LLC is a midsize IT managed services company. The New York, New York-based firm was established in 1996. Their team specializes in IT managed services and Cybersecurity.Read More
Clients
Palmer HollandIndustries
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2303$5,000+10 - 49 employeesLos Angeles, CAKento Systems is a small Accounting company. Launched in 1990, the team offers Accounting and Branding.Read More
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2304$1,000+10 - 49 employeesSan Francisco, CACybersoft is a Transcription company. They are headquartered in San Francisco, California and have small team. Their team offers Transcription and Back Office Outsourcing.Read More
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2305Undisclosed10 - 49 employeesRiverside, CAConstantMD Inc. Is a social media marketing agency. Established in 2010, their team provides Social Media Marketing and Search Engine Optimization.Read More
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2306Undisclosed10 - 49 employeesFresno, CAMr. E. Studios is a Fresno, California-based Digital Strategy company. They focus on Digital Strategy and Web Design and were established in 2005.Read More
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2307Undisclosed10 - 49 employeesSonoma, CABalzac Communications & Marketing is a PR company. Their team is headquartered in Sonoma, California. The agency specializes in Public Relations and Social Media Marketing.Read More
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2308$10,000+10 - 49 employeesCosta Mesa, CAWyoming Interactive is an Advertising company. They were founded in 2008 and offer Advertising and Custom Software Development.Read More
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2309Undisclosed10 - 49 employeesSunnyvale, CAEcomZera is an e-commerce development firm launched in 2005. The team provides E-Commerce Development and Web Development.Read More
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GiftingIncIndustries
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2310Undisclosed250 - 999 employeesSan Mateo, CAStratogent is a midsize San Mateo, California-based cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.Read More
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