Top 100 Managed Service Providers in California
The Best of December 2025Looking for a top managed service provider in California?
If you’re looking for services that can spare you from complex, time-consuming, and sometimes counterproductive tasks? Perhaps managed service providers can help you and your business. You can rest easy by relying on managed service providers to handle any tedious tasks.
Managed service providers are outsourced third-party companies that provide different support efforts including network, application, security, and payroll works. Businesses and organizations hire managed service providers because of their flexibility and ability to relieve repetitive tasks. Great managed service providers create custom solutions to cater to the different needs of every business. Such services are worthwhile investments especially for startups and midsize businesses that want to have their in-house teams focus on their operations.
To assist you in your search for a partner, we’ve compiled this list of the top IT managed services in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Managed Services
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$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.
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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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91$1,000+10 - 49 employeesRocklin, CAIntegral Networks is a small IT managed services company. Founded in 2004, the agency is headquartered in Rocklin, California. Their team offers IT managed services.Read More
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92$1,000+10 - 49 employeesPasadena, CAIT managed services company AdviseTech is based in Pasadena, California. The small team focuses on IT managed services, cloud consulting & SI, and Cybersecurity. The company was founded in 1998.Read More
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93$50,000+1,000 - 9,999 employeesSanta Clara, CARead More
Founded in 2001, Trianz is a strategic agency headquartered in Santa Clara, Calif. with offices all over the United States, including Boston, Chicago, and Seattle.Their team has over 1,000 employees that specialize in big data consulting, cloud consulting, and IT strategy consulting.
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High TechIndustries
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94$1,000+2 - 9 employeesSan Diego, CANetwork Antics LLC is an IT managed services company. Launched in 2011, the small agency is headquartered in San Diego, California. Their team offers IT managed services, API Development, E-Commerce Development, Cybersecurity, and more.Read More
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95$1,000+50 - 249 employeesFremont, CARead More
4 Way Technologies is an application development company. They offer mobile app development and were founded in 2012. Their midsize team is in Noida, India and Fremont, California.
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96$1,000+10 - 49 employeesTustin, CABurgi Technologies, an IT managed services company, was founded in 2015. Headquartered in Tustin, California; Rancho Cucamonga, California; Seattle, Washington and Phoenix, Arizona, their small team provides IT managed services, cloud consulting & SI, Cybersecurity, IT strategy consulting, and more.Read More
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HyundaiIndustries
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97$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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98$5,000+10 - 49 employeesCosta Mesa, CARead More
KMicro Tech, Inc. is an IT services company based in Costa Mesa, Calif. The company, founded in 2014, has more than 40 employees that provide, among others, IT managed services as well as cybersecurity, cloud consulting & SI services to small and midmarket companies and institutions.
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SoftchoiceIndustries
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99$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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100$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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101$1,000+2 - 9 employeesPasadena, CABlissVector Tech is a cybersecurity and IT managed services company in Pasadena, California. They provide cybersecurity and IT managed services and were launched in 2019.Read More
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102$1,000+10 - 49 employeesGold River, CARead More
ABSO Technologies, Inc. Is a small IT managed services company in Gold River, California. Launched in 2021, the team offers IT managed services, other IT consulting and SI, cybersecurity, IT staff augmentation, and more.
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103Undisclosed250 - 999 employeesSan Francisco, CAHTEC Group is a big data company. They are located in San Francisco, California and have a midsize team. Their services include BI & big data consulting & SI, cloud consulting & SI, IT managed services, IT strategy consulting, and more. The agency was founded in 2008.Read More
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104$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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105$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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106$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
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107$1,000+10 - 49 employeesSan Francisco, CALaunched in 1998, Help4Access (Microsoft Access Technical Support) is an IT managed services company. The small San Francisco, California-based team offers IT managed services, unified communications consulting & SI, custom software development, and IT staff augmentation.Read More
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108$1,000+2 - 9 employeesIrvine, CANitech, an IT strategy consulting company, was launched in 1996. The firm focuses on IT strategy consulting and ERP consulting and SI.Read More
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109Undisclosed2 - 9 employeesCarlsbad, CARead More
CMIT Solutions of Carlsbad provides IT managed services, cybersecurity, and IT strategy consulting for small businesses in the business services, financial services, and health care industries. Founded in 1996, the Carlsbad, California-based team has about 9 employees.
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Crossing Back to HealthIndustries
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110$5,000+10 - 49 employeesLos Angeles, CARead More
PortalFront is a SharePoint hosting provider founded in 2003. Based in Riverside, Calif., their team of under 50 employees specializes in ECM consulting and SI, IT strategy consulting, and cloud consulting and SI.
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XeroxIndustries
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111$1,000+10 - 49 employeesSan Francisco, CABay Computing Group is a San Francisco, California-based IT strategy consulting company. The small team provides IT strategy consulting, cloud consulting & SI, Cybersecurity, and IT managed services and was founded in 1999.Read More
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112$10,000+10 - 49 employeesSan Ramon, CARead More
Cloud consulting & SI company Initialyze was established in 2015. The small San Ramon, California-based team offers cloud consulting & SI, web design, ux/ui design, architectural design, and more.
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113$1,000+2 - 9 employeesCorona, CALocated in Corona, California, WellomyTech is an IT managed services company. They offer IT managed services, Artificial Intelligence, custom software development, enterprise app modernization, and more and were established in 2021.Read More
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114Undisclosed10 - 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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115$1,000+50 - 249 employeesNapa, CAEndsight is an IT managed services company in Napa, California. They focus on IT managed services and IT strategy consulting and were founded in 2004.Read More
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116$10,000+1,000 - 9,999 employeesWalnut Creek, CAEstablished in 2002, Vaco is a large Brentwood, Tennessee-based IT managed services company. Their team specializes in IT managed services and cloud consulting & SI.Read More
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117$1,000+10 - 49 employeesSan Ramon, CABased in San Ramon, California, Clare Computer Solutions is an IT managed services company. They provide IT managed services and Cybersecurity and were founded in 1990.Read More
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118$25,000+2 - 9 employeesFairfield, CARead More
Ideas Factory US is a custom software development company established in 2014. Based in Fairfield, California, their small team focuses on custom software development, enterprise app modernization, IT strategy consulting, cloud consulting & SI, and more.
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119$10,000+50 - 249 employeesSanta Clara, CARead More
Network Remedy is an IT management and Cloud consulting firm from San Jose, Calif. It was founded in 2001 and now has a team of 9 that offers IT managed services and IT strategy consulting services.
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Silicon Valley Startup Incubator (that has produced several unicorns)Industries
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120Undisclosed10 - 49 employeesLos Angeles, CAInfonetworks is an IT strategy consulting company established in 2018. Their small team is located in Los Angeles, California and offers IT strategy consulting, unified communications consulting & SI, Cybersecurity, and IT managed services.Read More
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