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.
Judy Security
Best for: Startups to SMB orgs, Legal, Manufacturing
Judy Security is an AI-powered cybersecurity platform designed for small businesses, providing automated threat detection, response, and compliance management a...
Kirkham IronTech
Best for: SMB to Mid-Market orgs, Manufacturing
Kirkham IronTech provides managed IT and cybersecurity services to businesses in Arkansas, offering comprehensive security monitoring and compliance support.
Kivu Consulting
Best for: SMB to Enterprise orgs, Legal, Retail & E-Commerce
Kivu Consulting provides managed detection and response, digital forensics, and incident response services, with deep expertise in ransomware remediation and br...
Kroll
Best for: Mid-Market to Enterprise orgs, Legal, Technology
Kroll provides MDR, incident response, and cyber risk management services, leveraging decades of investigative and risk consulting expertise.
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...
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...
M.A. Polce
Best for: SMB to Mid-Market orgs, Education, Manufacturing
M.A. Polce provides managed IT and cybersecurity services to organizations in upstate New York, offering security monitoring, compliance, and cloud services.
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.
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...