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.
Red Canary
Best for: SMB to Enterprise orgs, Technology, Manufacturing
Red Canary is a managed detection and response provider that delivers outcome-focused security operations, combining its proprietary detection engine with a ded...
RedZone Technologies
Best for: SMB to Mid-Market orgs, Government & Public Sector, Defense & Aerospace
RedZone Technologies provides managed cybersecurity services and IT solutions to government agencies and businesses in the Maryland/Washington D.C. area.
ReliaQuest
Best for: Mid-Market to Enterprise orgs, Technology, Retail & E-Commerce
ReliaQuest provides security operations through its GreyMatter platform, offering unified visibility, automated response, and managed detection across hybrid en...
RNS Technology Services
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Energy & Utilities
RNS Technology Services is a Dubai-based MSSP providing managed security operations, cloud security, and cybersecurity consulting services across the Middle Eas...
RSM US (RSM Defense)
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Defense & Aerospace
RSM US is the largest US CPA and advisory firm offering a full-scale MSSP practice (RSM Defense) with CMMC Level 2 certification, the largest C3PAO status, and...
Safetech Innovations
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Energy & Utilities
Safetech Innovations is a Romanian cybersecurity company providing managed SOC services, threat intelligence, and compliance consulting across Eastern Europe.
SAIC Cybersecurity
Best for: Enterprise orgs, Government & Public Sector, Defense & Aerospace
SAIC (Science Applications International Corporation) is a Reston, VA-based defense technology company delivering managed cyber defense, zero trust, and securit...
SBS CyberSecurity
Best for: Startups to Mid-Market orgs, Financial Services
SBS CyberSecurity provides managed cybersecurity services specifically for financial institutions, delivering SOC monitoring, vulnerability management, and comp...
ScienceSoft
Best for: SMB to Enterprise orgs, Retail & E-Commerce, Manufacturing
ScienceSoft provides managed security services as part of its broader IT consulting and software development practice, offering security monitoring, vulnerabili...
Secure Soft
Best for: Mid-Market to Enterprise orgs, Telecommunications, Government & Public Sector
Secure Soft is a Mexican and Latin American cybersecurity company providing managed security services and consulting.
SecuriCentrix
Best for: Mid-Market to Enterprise orgs, Technology
SecuriCentrix is an Irish managed security services provider delivering SOC operations and cybersecurity consulting to enterprises across Ireland and the UK.
SecurityHQ
Best for: SMB to Enterprise orgs, Retail & E-Commerce, Government & Public Sector
SecurityHQ provides managed security services through a global network of SOCs, offering MDR, SIEM management, and incident response with a focus on the Middle...