Browse MSSP Providers
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 top MSSPs in 2026.
Kudelski Security
Best for: Mid-Market to Enterprise orgs, Energy & Utilities, Government & Public Sector
Kudelski Security is a Swiss-American MSSP and MDR leader founded in 2012, ranked in Forrester Wave for MDR and recognized by Gartner for seven consecutive year...
Kyber Security
Best for: SMB to Mid-Market orgs, Manufacturing, Education
Kyber Security is a boutique managed security services provider based in Connecticut, delivering SecurityFirstâ„¢ cybersecurity solutions to small and mid-sized b...
LAC
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Manufacturing
LAC is one of Japan's oldest and most established cybersecurity companies, providing managed security monitoring, incident response, and security consulting thr...
Legato Security
Best for: SMB to Enterprise orgs, Government & Public Sector, Manufacturing
Legato Security provides managed detection and response, SOC-as-a-Service, and compliance-focused security operations for mid-market and enterprise organization...
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.
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...