Top 100 IT Services Companies in California
The Best of July 2026Looking 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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121$5,000+50 - 249 employeesSan Diego, CARead More
centrexIT is an IT and IS management and consulting firm based in San Diego. The firm, founded in 2002, has more than 50 employees who provide managed IT and IS services to the health care & medical, consumer products & services, and transportation industries.
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Avista TechnologiesIndustries
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122$10,000+10 - 49 employeesSan Francisco, CAIT strategy consulting company Techlexity was founded in 2019. Located in L'viv, Ukraine and San Francisco, California, their small team provides IT strategy consulting, Custom Software Development, Web Development, Mobile App Development, and more.Read More
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123$1,000+50 - 249 employeesSan Francisco, CAPerimattic is a midsize San Francisco, California-based artificial intelligence company. Founded in 2022, the team focuses on Artificial Intelligence, BI & big data consulting & SI, cloud consulting & SI, Custom Software Development, and more.Read More
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124$1,000+10 - 49 employeesSalinas, CARead More
SRS Networks is an IT firm based in Salinas, Calif. Founded in 1996, their team of 30 serves clients in the transportation sectors. Services include IT strategy and staff augmentation.
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125$5,000+50 - 249 employeesIrvine, CARead More
GoSaaS is a midsize Wilmington, Delaware-based ERP consulting and SI company. Founded in 2017, the team specializes in ERP consulting and SI, cloud consulting & SI, IoT development, and business consulting.
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126Undisclosed10 - 49 employeesMountain View, CARead More
Cybersecurity and IT managed services company Jump Start Technology was founded in 1997. Their small team is based in Mountain View, California. Jump Start Technology focuses on cybersecurity and IT managed services.
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127$5,000+2 - 9 employeesSan Jose, CARead More
CodeFutures is a small software development company. Based in Broomfield, Colorado and San Jose, California, the agency was launched in 2001. Their services include custom software development, cloud consulting & SI, IT staff augmentation, and other IT consulting and SI.
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128$5,000+10 - 49 employeesRancho Cucamonga, CARead More
Zeta Sky is an IT firm based in Rancho Cucamonga, Calif. with no more than 50 experts. Founded in 2015, they provide cybersecurity, IT managed services, and cloud consulting solutions for small and medium-sized companies alike.
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Gallant InsuranceIndustries
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129$10,000+10 - 49 employeesPleasanton, CARead More
Cygnis Media is a development agency is headquartered in Pleasanton, Calif. Since 2010, their team of 45 has been specializing in web design and development, UX/UI design, mobile app development, and more. Cygnis Media works with clients in various industries including arts & entertainment and business services.
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MIT NFL Network Oreo SamsungIndustries
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130$5,000+10 - 49 employeesSan Francisco, CARead More
Intivix is a Cloud and IT solutions company headquartered in San Francisco with offices in Corvallis, Ore. and Oakland, Calif. The company was founded in 1996 and now has a team of 20 that provides IT managed services, cybersecurity, cloud consulting & SI, and IT strategy consulting.
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United WayIndustries
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131$5,000+10 - 49 employeesEl Dorado Hills, CARead More
Launched in 1999, 7th Dimension is a IT managed services company. They are located in El Dorado Hills, California and have a small team. The agency specializes in IT managed services, IT strategy consulting, cybersecurity, and other IT consulting and SI.
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132$5,000+10 - 49 employeesRoseville, CALaunched in 2012, Three Ventures Technology, Inc. Is a pay per click company. Their small team is based in Roseville, California and Frisco, Texas. Their team offers Pay Per Click, cloud consulting & SI, CRM consulting and SI, Conversion Optimization, and more.Read More
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133$1,000+10 - 49 employeesGarden Grove, CARead More
Red Cup IT is an IT solutions company based in Garden Grove, Calif. The company, founded in 2009, has a team of more than ten that provides, among others, IT managed services, IT strategy consulting, and cloud consulting & SI services to small and medium businesses and organizations.
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American ZettlerIndustries
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134$1,000+10 - 49 employeesOceanside, CAEmail Marketing company B2B Bandits was launched in 2009. They are located in Oceanside, California and Glendale, California and have a small team. Their services include Email Marketing, Marketing Strategy, Event Marketing, Digital Strategy, and more.Read More
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Intuit MailchimpIndustries
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135$5,000+10 - 49 employeesSan Diego, CARead More
Reweto is a. Established in 2019, the team specializes in. Their small company is.
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136$1,000+2 - 9 employeesLos Altos, CARead More
Rely On IT is a managed IT firm based in Los Altos, Calif. Founded in 2005, their team of 8 serves clients in the real estate and education sectors. Services include cloud consulting and strategy.
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137$1,000+10 - 49 employeesSan Diego, CARead More
Kazmarek Technology Solutions is a IT managed services company. The small San Diego, California-based firm was established in 2000. Their services include IT managed services, cybersecurity, IT strategy consulting, cloud consulting & SI, and more.
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138$10,000+10 - 49 employeesScotts Valley, CARead More
CVisionLab is a computer vision research company founded in 2009. Operating out of Russia, the team of over 20 employees specializes in AI, custom software development, and cloud consulting. Their clientele primarily consists of small businesses.
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Justitia DigitalisIndustries
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139$10,000+10 - 49 employeesSan Jose, CARead More
Caspian IT Group is an IT company in San Jose. Founded in 2012, they have about 6 employees that serve clients in a wide range of industries. Services include IT managed services, strategy consulting, and cybersecurity.
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140$1,000+10 - 49 employeesPalo Alto, CAMinimalistech is a big data company launched in 2010. Their team focuses on BI & big data consulting & SI and Custom Software Development.Read More
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Caffeine.TvIndustries
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141Undisclosed10 - 49 employeesSacramento, CARead More
Cloud consulting & SI company Leverage IT Consulting is based in Sacramento, California and Reno, Nevada. The small team provides cloud consulting & SI, IT managed services, cybersecurity, and IT strategy consulting. The firm was established in 2001.
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142$1,000+10 - 49 employeesIrvine, CARead More
TeraPixels Systems is an IT firm based in Irvine, Calif., and founded in 1996. Their team of no more than 50 offers IT managed services and IT strategy consulting solutions for small and mid-market agencies in the fields of healthcare, IT, and more.
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Invisible ArmorIndustries
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143$1,000+2 - 9 employeesLos Angeles, CARazz Professional Services, Inc., an IT managed services company, was established in 2010. The agency focuses on IT managed services and has a small team.Read More
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144$5,000+10 - 49 employeesSan Jose, CANevtec is a small IT managed services company. The San Jose, California-based company was launched in 1996. Their team focuses on IT managed services, IT strategy consulting, and Cybersecurity.Read More
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145Undisclosed2 - 9 employeesMission Viejo, CANysa Technology is a small Cybersecurity company. Founded in 2023, the firm is located in Mission Viejo, California. Their team specializes in Cybersecurity, IT strategy consulting, and IT managed services.Read More
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146Undisclosed2 - 9 employeesLos Angeles, CAHeadquartered in Los Angeles, California, DevSignal is an IT staff augmentation company. The small firm was founded in 2023. Their team offers IT staff augmentation, Staffing, Recruiting, IT managed services, and more.Read More
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147$75,000+250 - 999 employeesSan Francisco, CARead More
Traction is a full-service marketing agency located in San Francisco. With a team of nearly 250 employees, Traction provides web design, advertising, UI/UX design, and branding services to enterprise and midmarket clients.
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AppleIndustries
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148$1,000+50 - 249 employeesSouth San Francisco, CARead More
Aston Technologies is a midsize IT staff augmentation company. The Minneapolis, Minnesota-based firm was founded in 2001. Their services include IT staff augmentation and IT managed services.
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149$5,000+10 - 49 employeesLos Angeles, CARead More
DCG Technical Solutions, Inc is an IT services company founded in 1993 and located in Los Angeles. With a team of fewer than 50 employees, they provide IT managed services and cloud consulting services to clients in the manufacturing, financial services, and business services industries.
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Iconic InvestmentsIndustries
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150$1,000+10 - 49 employeesCity of Industry, CAASi-Networks is a City of Industry, California-based Cybersecurity company. The small firm was established in 1998. Their services include Cybersecurity, IT managed services, IT strategy consulting, cloud consulting & SI, and more.Read More
Industries
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