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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31$5,000+50 - 249 employeesOakland, CARead More
Xantrion is a cybersecurity company. They are in Oakland, California and have a midsize team. The agency offers cybersecurity, IT managed services, cloud consulting & SI, and IT strategy consulting.
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32$5,000+250 - 999 employeesIrvine, CANexusTek is a midsize cloud consulting & SI company. The Greenwood Village, Colorado-based agency was established in 1996. Their team provides cloud consulting & SI, IT managed services, Cybersecurity, IT strategy consulting, and more.Read More
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33Undisclosed10 - 49 employeesSanta Clarita, CADatalink Networks Inc. Is a small IT strategy consulting company located in Santa Clarita, California; Bentonville, Arkansas; Dallas, Texas and Bellevue, Washington. They specialize in IT strategy consulting, cloud consulting & SI, unified communications consulting & SI, Cybersecurity, and more and were established in 1988.Read More
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City of PalmdaleIndustries
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34Undisclosed50 - 249 employeesSan Diego, CARead More
Interlaced.io is a San Diego, California-based IT strategy consulting and IT managed services company. They focus on IT strategy consulting and IT managed services and were launched in 2009.
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35$5,000+10 - 49 employeesBeverly Hills, CARead More
RGB Projects is an IT services provider based in Beverly Hills, California. Founded in 2006, their team of about 20 work with mainly enterprise and mid-market clients. They specialize in ECM consulting and SI, IT managed services, and application management and support.
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36$1,000+50 - 249 employeesSan Francisco, CARead More
MondayCall is a cloud and CRM consulting firm based in San Francisco. Their team of about 150 serves clients of all sizes across a range of industries. Additional services include SI and IT managed services. They were founded in 2009.
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GoogleIndustries
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37$10,000+50 - 249 employeesBeverly Hills, CARead More
Founded in 2010, Mission is an AWS managed services partner based in El Segundo, Calif. Their team of 83 employees specializes in IT managed services, cloud consulting and SI, and enterprise app modernization.
Clients
Boston Celtics -
38$25,000+50 - 249 employeesLos Angeles, CAMetal Toad is a Los Angeles, California-based cloud consulting & SI company. The firm specializes in cloud consulting & SI, BI & big data consulting & SI, IT managed services, Custom Software Development, and more and is midsize.The firm was founded in 2003.Read More
Clients
ABC TelevisionIndustries
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39$5,000+10 - 49 employeesSan Diego, CARead More
RSI Security is an IT managed services and cybersecurity company. They focus on IT managed services and cybersecurity and were launched in 2008. The company is headquartered in San Diego, California.
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40$25,000+250 - 999 employeesLos Angeles, CARead More
SADA Systems, with a team of 350+ employees, is a software consulting agency that was founded in 2000. SADA Systems is headquartered in Los Angeles, with an office in Washington. The agency helps a variety of clients with their cloud consulting and system integration, IT strategy consulting, and software development needs.
Clients
Colgate-PalmoliveIndustries
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41$50,000+50 - 249 employeesSan Francisco, CAAdmios, a software development firm, was launched in 2005. The company provides Custom Software Development, IT staff augmentation, IT managed services, Application Testing, and more and has a midsize team. The company is in San Francisco, California.Read More
Industries
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42$10,000+10 - 49 employeesSan Diego, CARead More
BD Emerson is a cybersecurity company in Richmond, Virginia. The company offers cybersecurity, business consulting, corporate law, and compliance consulting and has a small team.The company was established in 2020.
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43Undisclosed10 - 49 employeesCayucos, CARead More
Cloud consulting & SI company HiView Solutions is in Cayucos, California. The small team provides cloud consulting & SI, IT managed services, IT strategy consulting, and IT staff augmentation and was founded in 2016.
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44Undisclosed10 - 49 employeesSan Jose, CARead More
DataEndure is a digital security company based in San Jose, Calif. and founded in 1983. Their team of 36 employees specializes in cybersecurity, cloud consulting, and IT managed services for enterprise and midmarket candidates in the IT, financial services, and healthcare industries.
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DataEndure works with a number of customers across industriesIndustries
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45$1,000+10 - 49 employeesSaratoga, CARead More
Computer Experts Corp. is a consultancy founded in 1988 with over 10 experts. Based in Saratoga, Calif., they offer IT managed services, big data consulting, and cloud consulting solutions for small businesses in the field of IT services.
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46Undisclosed10 - 49 employeesPasadena, CARead More
Cyber Defense Group is a Los Angeles, California-based cloud consulting & SI and cybersecurity company. Launched in 2016, the small team specializes in cloud consulting & SI and cybersecurity.
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47$5,000+10 - 49 employeesSan Mateo, CARead More
Kinetix Technology Services is an IT managed services company established in 2005. In San Mateo, California, their small team provides IT managed services, cloud consulting & SI, IT strategy consulting, and cybersecurity.
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48$5,000+2 - 9 employeesLos Angeles, CABased in Los Angeles, California, Lead Love is a small CRM consulting and SI company. Founded in 2017, the team offers CRM consulting and SI, IT managed services, Account-Based Marketing, Conversion Optimization, and more.Read More
Clients
SyndesusIndustries
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49$5,000+10 - 49 employeesLos Angeles, CARead More
Headquartered in Redondo Beach, California, IT Accuracy is a cloud consulting & SI company. The small company was launched in 2007. Their team specializes in cloud consulting & SI, IT managed services, cybersecurity, IT strategy consulting, and more.
Clients
Farmer's InsuranceIndustries
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50$10,000+50 - 249 employeesCampbell, CARead More
USWired Inc. is an IT services provider based in San Jose, Calif. Founded in 1996, their current team of 16 specializes in IT managed services, cloud consulting & SI, and IT strategy consulting.
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NYSEIndustries
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51Undisclosed2 - 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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52$1,000+2 - 9 employeesFountain Valley, CARead More
IT Tropolis, an IT managed services company, is in Fountain Valley, California. The small team specializes in IT managed services, IT strategy consulting, cloud consulting & SI, and cybersecurity. The company was founded in 2010.
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53$1,000+10 - 49 employeesFair Oaks, CARead More
Founded in 1997, FUSE3 is an IT managed services company. In Fair Oaks, California, their small team provides IT managed services.
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54$1,000+50 - 249 employeesSan Jose, CARead More
Alternis IT is a managed IT and cybersecurity broker based in San Jose, Calif., with an office in Los Angeles. The broker, founded in 2013, has more than 50 employees and provides cybersecurity, IT managed services, IT strategy consulting, and cloud consulting & SI services. Alternis IT serves small and midmarket companies in various sectors that include financial services, media, and legal.
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KindPeoplesIndustries
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55$5,000+2 - 9 employeesLafayette, CARead More
BizCare is an IT solutions company based in Lafayette, Calif. They were founded in 2006 and have a team of 4 employees who specialize in IT managed services and cyber security. They cut through the chaos of the modern IT landscape to provide their clients with solutions that work.
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Industries
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56$10,000+50 - 249 employeesSunnyvale, CARead More
CloudGeometry is a cloud consulting & SI company. The midsize Sunnyvale, California-based team specializes in cloud consulting & SI, IT managed services, other IT consulting and SI, custom software development, and more. The agency was established in 2007.
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57$1,000+2 - 9 employeesSacramento, CARead More
Founded in 2009, John Brendle IT Consulting is a IT managed services company. Their small team is based in Sacramento, California and specializes in IT managed services, IT strategy consulting, and cybersecurity.
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58$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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59$5,000+10 - 49 employeesCosta Mesa, CARead More
Breeze IT, Inc. is an IT solutions provider based in Costa Mesa, Calif. The provider, founded in 2010, has a team of more than 15 that provides IT managed services, cybersecurity, cloud consulting & SI, IT strategy consulting, and IT staff augmentation services. Breeze IT serves midmarket and other-sized companies in various industries that include manufacturing, business services, and real estate.
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OSTechnicalIndustries
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60$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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