Top 40 Managed SIEM Providers in California
The Best of December 2025Looking for a top managed SIEM service in California?
Managed SIEM providers are essential partners for businesses seeking to outsource their SIEM capabilities and enhance their security operations. By collaborating with managed SIEM providers, businesses can offload the burden of SIEM management, gain access to expert security resources, and strengthen their defenses against cyber threats.
To assist you in your search for a partner, we’ve compiled this list of the top managed SIEM services in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California SIEM Managed Service Providers
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1$5,000+250 - 999 employeesGlendale, CACyberDuo is an IT managed services company headquartered in Glendale, California; New York, New York; San Francisco, California and San Diego, California. The midsize firm was launched in 2008. Their team provides IT managed services, Cybersecurity, IT strategy consulting, and cloud consulting & SI.Read More
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DisneyIndustries
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2Undisclosed50 - 249 employeesSan Ramon, CALocated in San Ramon, California; San Francisco, California; Sacramento, California and San Jose, California, Parachute Technology is an IT managed services company. The midsize team focuses on IT managed services, Cybersecurity, and cloud consulting & SI. The agency was established in 2003.Read More
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San Francisco Travel AssociationIndustries
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3$1,000+10 - 49 employeesTorrance, CAConsilien is a Torrance, California-based IT managed services company. Launched in 2001, the small team provides IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting.Read More
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4$5,000+50 - 249 employeesSan Jose, CAZAG Technical Services, an IT managed services company, was established in 1998. They are based in San Jose, California; Salinas, California and Meridian, Idaho and have a midsize team. ZAG Technical Services focuses on IT managed services, other IT consulting and SI, IT strategy consulting, BI & big data consulting & SI, and more.Read More
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5$25,000+50 - 249 employeesLos Angeles, CADreamers Inc. Is an artificial intelligence development company in Los Angeles, California. Launched in 2013, the midsize team focuses on Artificial Intelligence, Mobile App Development, Blockchain, Cybersecurity, and more.Read More
Clients
NASA Johns Hopkins Applied Physics Lab US Air Force US Department of EducationIndustries
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6$1,000+10 - 49 employeesSan Diego, CACrown Computers inc is an IT managed services company established in 1995. The company offers IT managed services, IT strategy consulting, Cybersecurity, IT staff augmentation, and more and has a small team.Read More
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7Undisclosed50 - 249 employeesWalnut Creek, CACybersecurity company SharkStriker Inc. Is in Walnut Creek, California. The midsize team provides cybersecurity. The firm was launched in 2010.Read More
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8$5,000+50 - 249 employeesSacramento, CARead More
West Advanced Technologies Inc is a midsize Sacramento, California-based cybersecurity company. The team specializes in cybersecurity, IT staff augmentation, cloud consulting & SI, and IT managed services.
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9$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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10Undisclosed2 - 9 employeesFoster City, CAIT Total Care is an IT managed services company. Founded in 2001, the small firm is based in Foster City, California. Their services include IT managed services, Cybersecurity, and cloud consulting & SI.Read More
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11$25,000+1,000 - 9,999 employeesLos Angeles, CANetsol Technologies Inc. Is a Cybersecurity company. Based in Los Angeles, California and London, England, the team specializes in Cybersecurity and cloud consulting & SI.Read More
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12$5,000+10 - 49 employeesSan Diego, CARead More
Pact-One Solutions, LLC, a IT managed services company, is headquartered in Las Vegas, Nevada; San Diego, California; Pasadena, California and Lake Oswego, Oregon. The small team focuses on IT managed services, cybersecurity, IT strategy consulting, other IT consulting and SI, and more and was founded in 2003.
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13Undisclosed250 - 999 employeesSan Diego, CAESET is a Cybersecurity company. Headquartered in San Diego, California, their midsize team focuses on Cybersecurity. The agency was established in 1992.Read More
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14$5,000+10 - 49 employeesLos Angeles, CAThe Tech Consultants, LLC is an IT managed services company. Located in Los Angeles, California, their small team offers IT managed services and Cybersecurity. The firm was launched in 2006.Read More
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15$1,000+2 - 9 employeesLos Angeles, CACareful Security is a Cybersecurity company. The agency is in Los Angeles, California. Their services include Cybersecurity and IT managed services.Read More
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16$5,000+10 - 49 employeesSan Carlos, CAEmagined Security is a Cybersecurity company. Launched in 2003, the team offers Cybersecurity.Read More
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17Undisclosed10 - 49 employeesLos Angeles, CAInfinitely Virtual (IV), an IT managed services company, is based in Los Angeles, California. The team offers IT managed services and Cybersecurity.Read More
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18$1,000+10 - 49 employeesFairfield, CAEstablished in 2008, nDataStor Inc, a small Cybersecurity company, is headquartered in Fairfield, California and Sacramento, California. Their team offers Cybersecurity and IT managed services.Read More
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19Undisclosed2 - 9 employeesArroyo Grande, CAEstablished in 2002, Professional IT Solutions is a small Cybersecurity company. Their team specializes in Cybersecurity and IT managed services.Read More
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20$5,000+10 - 49 employeesRiverside, CABiztek Solutions, Inc., an IT managed services company, offer IT managed services and Cybersecurity. They were launched in 2006.Read More
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21Undisclosed10 - 49 employeesRolling Hills Estates, CAADS Consulting Group Inc. Is a small Rolling Hills Estates, California-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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22Undisclosed10 - 49 employeesSacramento, CAIT managed services company TLC Tech, Inc. Was launched in 2004. The agency provides IT managed services and IT strategy consulting, and is small.Read More
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23Undisclosed250 - 999 employeesLos Gatos, CACloudDev is an IT strategy consulting company. The Los Gatos, California-based team specializes in IT strategy consulting and cloud consulting & SI.Read More
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24$10,000+50 - 249 employeesSan Diego, CARead More
IT strategy consulting company Meriplex Communications was established in 2001. In Houston, Texas, their midsize team focuses on IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.
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25$5,000+10 - 49 employeesFremont, CAProkopto is a small IT strategy consulting company headquartered in Fremont, California. The team offers IT strategy consulting and cloud consulting & SI.Read More
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26Undisclosed2 - 9 employeesHuntington Beach, CASurf City Systems is an IT strategy consulting company. The Huntington Beach, California-based team offers IT strategy consulting and cloud consulting & SI.Read More
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27$10,000+10 - 49 employeesIrvine, CASignalAge is an IT strategy consulting company. The Irvine, California-based team provides IT strategy consulting and cloud consulting & SI.Read More
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28Undisclosed50 - 249 employeesSanta Clara, CAInovasys, a Digital Strategy company, was established in 2014. The team offers Digital Strategy and cloud consulting & SI.Read More
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29$1,000+2 - 9 employeesLos Angeles, CASecure Techies, an IT managed services company, specializes in IT managed services and IT strategy consulting. The agency is in Los Angeles, California.Read More
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30$1,000+10 - 49 employeesRancho Cucamonga, CAGENIUSBOTS is a Cybersecurity company. Established in 2023, the team offers Cybersecurity and Content Marketing. The agency is headquartered in Rancho Cucamonga, California.Read More
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