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.
Jump to Most Reviewed Companies
List of the Best California IT Companies
-
$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.
Industries
-
$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
Industries
-
2041Undisclosed2 - 9 employeesAntelope, CACPMS SERVICES, LLC is a small Business Consulting company. Launched in 2014, the team offers Business Consulting and IT managed services.Read More
-
2042Undisclosed2 - 9 employeesLos Angeles, CAFounded in 2015, Tharatech LLC is a custom software development firm. The team focuses on Custom Software Development and Application Management & Support.Read More
-
2043Undisclosed2 - 9 employeesRocklin, CALaunched in 2007, Matrix Innovative Systems, Inc. Is a software development firm and cloud consulting & SI company. The team focuses on Custom Software Development and cloud consulting & SI.Read More
-
2044Undisclosed2 - 9 employeesPasadena, CATrinus Corporation is an IT managed services company. They are in Pasadena, California and have small team. Their team offers IT managed services and Search Engine Optimization.Read More
-
2045Undisclosed2 - 9 employeesSan Jose, CAAinabl Technologies is a San Jose, California-based big data analytics company. The team provides BI & big data consulting & SI and AR/VR development.Read More
-
2046Undisclosed2 - 9 employeesSan Ramon, CADyzaro Digital and Cloud Performance, a cloud consulting & SI company, was launched in 2006. They specializes in cloud consulting & SI and Artificial Intelligence.Read More
-
2047Undisclosed2 - 9 employeesHawthorne, CABrowserCloud, a big data analytics company and Application Testing company, was established in 2020. The small team offers BI & big data consulting & SI and Application Testing.Read More
-
2048Undisclosed2 - 9 employeesMission Viejo, CAFounded in 2012, Data Slayer is a small IT managed services and Content Moderation Services company. Their services include IT managed services and Content Moderation Services.Read More
-
2049Undisclosed50 - 249 employeesSanta Monica, CAPeloton Group is a big data analytics company. Their team is located in Boston, Massachusetts and Jersey City, New Jersey. The firm focuses on BI & big data consulting & SI and Business Consulting.Read More
-
2050Undisclosed250 - 999 employeesSan Jose, CADigile, a Digital Strategy company, was established in 2015. The team focuses on Digital Strategy and Conversion Optimization and is headquartered in Bengaluru, India and Hyderabad, India.Read More
-
2051$1,000+10 - 49 employeesSan Francisco, CAFounded in 2019, OBVms_ is an artificial intelligence company. The team offers Artificial Intelligence and BI & big data consulting & SI and is in San Francisco, California and Mumbai, India.Read More
-
2052$1,000+10 - 49 employeesSan Francisco, CAFounded in 2017, RS sIgnatoure Solutions Pvt Ltd. Is a software development firm. The small team provides Custom Software Development and AR/VR development.Read More
Industries
-
2053$25,000+250 - 999 employeesManhattan Beach, CADistillery, a custom software development firm, was established in 2012. The agency specializes in Custom Software Development, Web Development, Mobile App Development, IT staff augmentation, and more and has a midsize team. The agency is based in Manhattan Beach, California; Córdoba, Argentina; Ciudad de México, Mexico and C1429BNS, Argentina.Read More
Clients
ebayIndustries
-
2054$1,000+Freelancer employeesSan Clemente, CARithmatics is a software development firm. In San Clemente, California, their small team specializes in Custom Software Development and Web Development. The company was established in 2014.Read More
-
2055Undisclosed250 - 999 employeesSanta Clara, CASpanIdea Systems is a business intelligence company. They were launched in 2011, and their services include BI & big data consulting & SI and cloud consulting & SI.Read More
Industries
-
2056$1,000+1,000 - 9,999 employeesSan Francisco, CAProtiviti is a big data company founded in 2002. Their services include BI & big data consulting & SI and Custom Software Development.Read More
-
2057UndisclosedFreelancer employeesAlameda, CATekNiche Computer Services is a small IT managed services company based in Alameda, California. The team offers IT managed services and Web Design.Read More
-
2058UndisclosedFreelancer employeesSacramento, CAFounded in 2023, Klearpath Solutions LLC is a business intelligence company. Headquartered in Sacramento, California, the team offers BI & big data consulting & SI and Artificial Intelligence.Read More
-
2059UndisclosedFreelancer employeesSan Diego, CAVulnalysis LLC is a Cybersecurity company based in San Diego, California. They specialize in Cybersecurity and IT strategy consulting and were launched in 2023.Read More
-
2060UndisclosedFreelancer employeesEl Monte, CAIDOTECH is an IT managed services company. Founded in 2012, the team focuses on IT managed services and Web Development. The agency is in El Monte, California.Read More
-
2061Undisclosed10 - 49 employeesPleasanton, CAXTENDLY is a web development company. The team is headquartered in Pleasanton, California, and their services include Web Development and Mobile App Development.Read More
-
2062$50,000+50 - 249 employeesSan Mateo, CAHeadquartered in San Mateo, California and Karachi, Pakistan, AgriERP is a midsize ERP consulting and SI company. Their services include ERP consulting and SI and CRM consulting and SI.Read More
Industries
-
2063$5,000+50 - 249 employeesVentura, CAFounded in 2019, Growtomation is a CRM consulting and SI company. The midsize team offers CRM consulting and SI and Marketing Strategy.Read More
Industries
-
2064$100,000+10 - 49 employeesFolsom, CAFounded in 2018, Flexday Solutions LLC is a small Naperville, Illinois-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
Industries
-
2065$5,000+10 - 49 employeesSanta Clara, CAHubrum Technologies Inc is an IT managed services company launched in 2017. The team provides IT managed services and IT staff augmentation.Read More
-
2066$10,000+50 - 249 employeesMountain View, CACloseloop Technologies is a custom software development company. Established in 2011, the midsize firm is in Mountain View, California; Sahibzada Ajit Singh Nagar, India and Jaipur, India. Their services include Custom Software Development, CRM consulting and SI, AI Consulting, ERP consulting and SI, and more.Read More
Clients
Block and Tam AutoTech Consulting Group Motorola Solutions PIC CorporationIndustries
-
2067$25,000+250 - 999 employeesSan Jose, CAScry AI, a midsize artificial intelligence firm, is headquartered in San Jose, California and Gurugram, India. Their services include Artificial Intelligence and BI & big data consulting & SI.Read More
-
2068Undisclosed2 - 9 employeesFresno, CAHeadquartered in Fresno, California, Royalty Site Design is a branding firm. They specialize in Branding and Search Engine Optimization.Read More
-
2069Undisclosed1,000 - 9,999 employeesSan Mateo, CAHeinsohn, an IT staff augmentation company, was launched in 1977. The team offers IT staff augmentation and Custom Software Development.Read More
-
2070$5,000+50 - 249 employeesMilpitas, CAOpcito Technologies is a software development company. They offer Custom Software Development, cloud consulting & SI, Enterprise App Modernization, IT staff augmentation, and more and were launched in 2015. The agency is located in Pune, India and Milpitas, California.Read More
Industries
Featured providers
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed IT Services Company in California
Check out an IT Services Company in California with the most new reviews in the past 12 months.
Most Reviewed
IT Services Company
California
- 11 7 new reviews
- 12 7 new reviews
- 13 7 new reviews
- 14 6 new reviews
- 15 5 new reviews
