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
-
$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.
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
-
1081Undisclosed50 - 249 employeesIrvine, CATevora is a Cybersecurity and Compliance Consulting company. They were established in 2003, and their services include Cybersecurity and Compliance Consulting.Read More
Industries
-
1082Undisclosed10 - 49 employeesSan Ramon, CADemandGen (now BDO Digital, Demand Generation Group) is a CRM consulting and SI company. In San Ramon, California, the team provides CRM consulting and SI and Customer Service Outsourcing.Read More
-
1083Undisclosed50 - 249 employeesMill Valley, CAE-commerce development firm Pierce Washington was established in 2005. The team specializes in E-Commerce Development and IT strategy consulting.Read More
-
1084Undisclosed250 - 999 employeesIrvine, CAIn Irvine, California and Toronto, Canada, Denken Solutions, Inc. Is an IT strategy consulting company. The team focuses on IT strategy consulting and CRM consulting and SI.Read More
Industries
-
1085Undisclosed1,000 - 9,999 employeesIrvine, CAHitachi Solutions America is an IT strategy consulting company located in Irvine, California. The team specializes in IT strategy consulting and IT managed services.Read More
-
1086Undisclosed50 - 249 employeesMilpitas, CALaunched in 2018, AnChain.AI is a Cybersecurity and artificial intelligence firm. Their services include Cybersecurity and Artificial Intelligence.Read More
-
1087Undisclosed50 - 249 employeesCupertino, CAMidsize cloud consulting & SI and DevOps Managed Services company Newstar.Cloud, is located in Cupertino, California. The team provides cloud consulting & SI and DevOps Managed Services.Read More
-
1088Undisclosed50 - 249 employeesSunnyvale, CALaunched in 2004, itsoli is an IT strategy consulting company. The team specializes in IT strategy consulting and ERP consulting and SI.Read More
-
1089Undisclosed10 - 49 employeesPasadena, CABusiness intelligence company AuriQ Systems, Inc. Is headquartered in Pasadena, California. Founded in 1996, the team focuses on BI & big data consulting & SI and Custom Software Development.Read More
-
1090Undisclosed250 - 999 employeesIrvine, CACaylent is a cloud consulting & SI company established in 2015. Headquartered in Irvine, California, the team offers cloud consulting & SI.Read More
Industries
-
1091Undisclosed10 - 49 employeesIrvine, CAAbelian is a CRM consulting and SI company established in 2017. Headquartered in Irvine, California, the team specializes in CRM consulting and SI and Mobile App Development.Read More
-
1092Undisclosed10 - 49 employeesManhattan Beach, CAECM consulting and SI and unified communications consulting & SI company IncWorx Consulting focuses on ECM consulting and SI and unified communications consulting & SI. They were established in 1998.Read More
-
1093Undisclosed250 - 999 employeesSanta Clara, CABusiness intelligence company LumenData was founded in 2007. The midsize team offers BI & big data consulting & SI and IoT development.Read More
-
1094Undisclosed50 - 249 employeesLos Angeles, CAXOverture, an IT strategy consulting company, is located in Los Angeles, California. The team provides IT strategy consulting and cloud consulting & SI.Read More
-
1095Undisclosed50 - 249 employeesIrvine, CAEJAmerica is a big data analytics company located in Irvine, California. Founded in 2016, the team specializes in BI & big data consulting & SI and cloud consulting & SI.Read More
-
1096Undisclosed50 - 249 employeesSan Ramon, CATrident Consulting Inc, a business intelligence company, offer BI & big data consulting & SI and cloud consulting & SI. They were founded in 2005.Read More
-
1097Undisclosed50 - 249 employeesPleasanton, CAAllianceIT Inc is a data analytics company. In Pleasanton, California, the team specializes in BI & big data consulting & SI and ERP consulting and SI.Read More
-
1098Undisclosed50 - 249 employeesSan Francisco, CACloud consulting & SI company GroupA was founded in 2009. The company focuses on cloud consulting & SI and Business Consulting.Read More
-
1099Undisclosed250 - 999 employeesFolsom, CAVisionary Integration Professionals (VIP) is an IT managed services company. Their team is headquartered in Folsom, California and offers IT managed services and Business Consulting.Read More
-
1100Undisclosed250 - 999 employeesSanta Ana, CAEstablished in 2018, ScaleNorth is an ERP consulting and SI company. The team specializes in ERP consulting and SI and Business Consulting.Read More
-
1101Undisclosed250 - 999 employeesNewark, CASkoruz Technologies is a Cybersecurity company. Their team is headquartered in Newark, California and Newark, California and focuses on Cybersecurity and Business Consulting.Read More
-
1102Undisclosed250 - 999 employeesManhattan Beach, CALaunched in 2013, Qvest.US is a midsize IT managed services company. Their team provides IT managed services and Custom Software Development.Read More
-
1103Undisclosed50 - 249 employeesPalo Alto, CACelito Tech, Inc. Is a Cybersecurity and Business Consulting company. They offer Cybersecurity and Business Consulting and are in Palo Alto, California and Redwood City, California.Read More
-
1104Undisclosed50 - 249 employeesRedlands, CAIn Redlands, California, Mobiz is a cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.Read More
Industries
-
1105Undisclosed50 - 249 employeesSanta Clarita, CAMidsize cloud consulting & SI company Med Tech Solutions, is in Morristown, New Jersey and Santa Clarita, California. The team focuses on cloud consulting & SI and Cybersecurity.Read More
-
1106Undisclosed2 - 9 employeesMurrieta, CAStrategic Intent Consulting Group, Inc., an IT strategy consulting company, is based in Henderson, Nevada and Murrieta, California. They focus on IT strategy consulting and cloud consulting & SI.Read More
Industries
-
1107Undisclosed250 - 999 employeesSanta Clara, CAIn Santa Clara, California, Alpha Net is a midsize IT managed services company. Their services include IT managed services and Staffing.Read More
-
1108Undisclosed10 - 49 employeesLong Beach, CAThe Datalabs Agency, a big data analytics company, was established in 2012. They offers BI & big data consulting & SI.Read More
-
1109Undisclosed50 - 249 employeesLos Angeles, CACurventus is a midsize business intelligence company launched in 2018. Their team specializes in BI & big data consulting & SI.Read More
-
1110Undisclosed2 - 9 employeesSan Diego, CAEstablished in 2017, Igloo Analytics is a data analytics company. The agency focuses on BI & big data consulting & SI, and is small.Read More
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
