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.
ONESECURE Asia
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Technology
ONESECURE Asia provides managed security services across Southeast Asia, offering SOC operations, threat intelligence, and compliance solutions.
Optiv Security
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Manufacturing
Optiv is one of the largest pure-play cybersecurity companies in North America, founded in 2015 in Denver with 2,000+ employees and offering managed security, c...
Orange Cyberdefense
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Telecommunications
Orange Cyberdefense is the cybersecurity arm of Orange Group, employing 3,000+ security experts across Europe and Asia and operating 18 SOCs to defend organizat...
OrbitalFire Cybersecurity
Best for: SMB to Mid-Market orgs, Manufacturing
OrbitalFire provides managed cybersecurity services and compliance solutions to small and mid-sized businesses in New York.
Palo Alto Networks Unit 42
Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Manufacturing
Palo Alto Networks delivers managed extended detection and response through its Cortex XMDR service, backed by Unit 42 threat research and incident response exp...
Presidio
Best for: Mid-Market to Enterprise orgs, Legal, Government & Public Sector
Presidio is a global digital services provider and Top 250 MSSP, delivering managed detection and response, cloud security, and comprehensive cybersecurity serv...
ProVision
Best for: Mid-Market to Enterprise orgs, Telecommunications, Government & Public Sector
ProVision is a Romanian cybersecurity company providing managed security services, SOC operations, and compliance consulting to organizations across Eastern Eur...
PwC UK - Managed Cyber Services
Best for: Enterprise orgs, Energy & Utilities, Telecommunications
PwC UK's Managed Cyber Services delivers enterprise-grade security operations, threat intelligence, and cyber defense services backed by one of the world's larg...
Rapid7
Best for: SMB to Enterprise orgs, Technology, Manufacturing
Rapid7 provides managed detection and response powered by the InsightIDR platform, combining their own security technology with SOC expertise for continuous thr...
Reliance Cyber
Best for: SMB to Enterprise orgs, Legal, Technology
Reliance Cyber is a UK-based managed cybersecurity provider delivering SOC services, MDR, and security consulting for mid-market and enterprise organizations ac...
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...