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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$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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1471Undisclosed2 - 9 employeesLos Angeles, CASero Technologies is a website development company. The company is in Surrey, Canada and Los Angeles, California. Their services include Web Development and E-Commerce Development.Read More
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1472$1,000+10 - 49 employeesClovis, CAHASHKRIO TECH LLP is a custom software development firm. They were launched in 2024, and their services include Custom Software Development and Web Development.Read More
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1473$5,000+50 - 249 employeesSan Diego, CAIn Bikaner, India; San Diego, California; Durban, South Africa and Dammam, Saudi Arabia, iWebwiser is a web development company. The midsize firm was established in 2018. Their services include Web Development, Mobile App Development, Custom Software Development, Marketing Strategy, and more.Read More
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1474$10,000+10 - 49 employeesSouth San Francisco, CAGoAhead Solutions is an IT staff augmentation company headquartered in South San Francisco, California. Their services include IT staff augmentation and IT strategy consulting.Read More
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1475$1,000+10 - 49 employeesRohnert Park, CAIn Rohnert Park, California, BackOffice Technology Group is a small Back Office Outsourcing company. Their services include Back Office Outsourcing and IT managed services.Read More
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1476Undisclosed10 - 49 employeesVentura, CAIT managed services company Mitec Solutions Inc. Is in Ventura, California. They provide IT managed services and Web Design and were founded in 2007.Read More
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1477Undisclosed10 - 49 employeesSan Diego, CABusiness Consulting company Intelesis Technologies was launched in 1997. The agency specializes in Business Consulting and IT strategy consulting, and is small.Read More
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1478Undisclosed10 - 49 employeesSan Mateo, CANextPhase.ai is a big data company. Launched in 2012, their team provides BI & big data consulting & SI and cloud consulting & SI.Read More
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1479Undisclosed10 - 49 employeesIrvine, CALink Consulting Services (LinkCS) is a CRM consulting and SI company located in Irvine, California. The team provides CRM consulting and SI and Cybersecurity.Read More
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1480Undisclosed10 - 49 employeesSan Jose, CAHiTech ERP Solutions Inc is a cloud consulting & SI company. Based in San Jose, California, the team provides cloud consulting & SI and ERP consulting and SI.Read More
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1481Undisclosed10 - 49 employeesLos Angeles, CAQuandary Peak Research is a Los Angeles, California-based Market Research company. They provide Market Research and IT strategy consulting.Read More
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1482Undisclosed10 - 49 employeesLos Angeles, CASierra Labs is an Application Testing company. Established in 2017, the team provides Application Testing and Compliance Consulting.Read More
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1483Undisclosed10 - 49 employeesSan Francisco, CABusiness intelligence company Mperativ is located in San Francisco, California. Founded in 2021, the team focuses on BI & big data consulting & SI and Business Consulting.Read More
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1484$25,000+250 - 999 employeesNewport Beach, CAEstablished in 2007, Technossus is a cloud consulting & SI company. The company specializes in cloud consulting & SI and Custom Software Development.Read More
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1485$5,000+10 - 49 employeesCupertino, CARead More
Deemsoft, a software development company, is in Cupertino, California and Bengaluru, India. The small team focuses on custom software development, e-commerce development, Artificial Intelligence, IT strategy consulting, and more and was established in 2007.
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1486$1,000+2 - 9 employeesRocklin, CAAburto Kinney Consulting LLC is a cybersecurity company established in 2023. They are located in Rocklin, California and have a small team. Their services include cybersecurity and IT strategy consulting.Read More
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1487Undisclosed2 - 9 employeesLong Beach, CADesignFluxx is a small web design agency. Founded in 2011, the team offers Web Design and Branding.Read More
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1488$1,000+2 - 9 employeesFolsom, CALaunched in 2017, IGNITE LOGIX is a small software development firm. Their services include Custom Software Development and Web Development.Read More
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1489$5,000+10 - 49 employeesSan Diego, CABased in San Diego, California, Wave Representatives is a small Direct Marketing company. Their services include Direct Marketing and Marketing Strategy.Read More
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1490$1,000+10 - 49 employeesLos Angeles, CAKyngdom Digital Marketing Agency, an Advertising company, offers Advertising and Digital Strategy. The company is located in Los Angeles, California and San Diego, California.Read More
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1491$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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1492$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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1493$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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1494$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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1495$5,000+250 - 999 employeesPontiac, MIIntelligent 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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1496Undisclosed10 - 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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1497$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
Clients
MicrosoftIndustries
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1498$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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1499Undisclosed250 - 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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1500Undisclosed250 - 999 employeesWashington, DCIT 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
Industries
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Check out an IT Services Company in California with the most new reviews in the past 12 months.
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