MSSP Directory: Compare Managed Security Service Providers
This directory lists managed security service providers (MSSPs), the companies that run security monitoring, threat detection, and incident response for organizations without a full in-house security operations center. Filter the full list by service, industry, company size, and security platform to narrow it into a shortlist you can compare side by side.
Compare managed security service providers. Use filters to narrow your search. The directory covers providers across all major service categories (MDR, SIEM management, vulnerability scanning, incident response, and more) as well as a wide range of industries and security platforms. Use the filter sidebar to narrow results by the criteria that matter most to your organization, and combine multiple filters to zero in on the right shortlist. Each provider profile includes service details, certifications, platform expertise, and key operational facts so you can compare options without leaving the page. New to MSSPs? Read our guide on what managed security service providers do or see the best MSSP providers in 2026. To turn a long list into a focused evaluation set, use our MSSP provider shortlist guide.
LevelBlue
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Technology
LevelBlue is a 2024 independent cybersecurity company formed from AT&T Cybersecurity's managed security business, with 2,500+ employees and one of the world's l...
LMNTRIX
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Technology
LMNTRIX is a global managed detection and response provider delivering an integrated MXDR platform with 13 security modules, 24/7 SOC coverage, unlimited DFIR,...
Locknet Managed IT
Best for: SMB to Mid-Market orgs, Manufacturing, Education
Locknet Managed IT provides cybersecurity and managed IT services to businesses across the Midwest, specializing in proactive threat monitoring and compliance s...
Logicalis
Best for: Mid-Market to Enterprise orgs, Manufacturing, Government & Public Sector
Logicalis provides managed cybersecurity services, SOC operations, and security consulting as a global IT solutions and managed services provider operating acro...
Logpoint
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Energy & Utilities
Logpoint provides SIEM, SOAR, and managed security services through its converged security operations platform, serving mid-market and enterprise organizations...
LSCV Systems
Best for: SMB to Mid-Market orgs, Government & Public Sector, Telecommunications
LSCV Systems is a Peruvian cybersecurity company providing managed security services and compliance solutions to organizations in Peru and Latin America.
LTIMindtree
Best for: Enterprise orgs, Manufacturing, Technology
LTIMindtree provides managed security operations, SOC services, and cybersecurity consulting as a major Indian IT services firm formed from the merger of L&T In...
Lumen Technologies Security
Best for: Mid-Market to Enterprise orgs, Telecommunications, Government & Public Sector
Lumen Technologies is a Fortune 500 global network and cloud provider operating a 24/7 MSSP practice backed by Black Lotus Labs threat intelligence and 4 Asia-P...
Lumifi Cyber
Best for: SMB to Enterprise orgs, Manufacturing, Energy & Utilities
Lumifi Cyber is a Scottsdale-based MDR and MSSP provider with a SOC 2 Type II certified US-based SOC staffed by ex-military and DoD experts, offering the propri...
Magen.AI
Best for: Mid-Market to Enterprise orgs, Technology, Government & Public Sector
Magen.AI is an Israeli cybersecurity firm providing AI-driven managed security services, data protection, and cloud security solutions for enterprises globally.
Malwarebytes
Best for: Startups to Mid-Market orgs, Education, Technology
Malwarebytes provides managed detection and response through its ThreatDown platform, offering endpoint protection and MDR services accessible to organizations...
Mandiant (Google Cloud)
Best for: Enterprise orgs, Government & Public Sector, Technology
Mandiant, now part of Google Cloud, delivers elite MDR and incident response services backed by 500+ threat intelligence analysts from 30+ countries with decade...