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.
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Jump directly to providers by service, industry, or security platform.
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How to Use This Directory
Start with the directory results below and open provider profiles to compare services, platforms, industries, and company fit. If you already know what capabilities you need, use the service filters (MDR, SIEM, vulnerability scanning, etc.) to see only providers that offer those services. If compliance is your primary concern, try the industry filters to find providers experienced with your sector's regulatory requirements (healthcare, finance, government, and more). If you need an MSSP that integrates with your existing security tools, use the platform filters to surface providers with verified expertise on platforms like CrowdStrike, Microsoft Sentinel, Palo Alto, or SentinelOne.
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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...
Kyndryl
Best for: Enterprise orgs, Government & Public Sector, Manufacturing
Kyndryl is the world's largest IT infrastructure services company, spun off from IBM in 2021, operating a global cybersecurity practice with 4,000+ security pra...
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...
Leidos Cybersecurity
Best for: Enterprise orgs, Government & Public Sector, Defense & Aerospace
Leidos is a Reston, VA-based defense and technology company with a major cybersecurity practice, delivering managed security and continuous monitoring for US fe...
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...