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.
Cetrom
Best for: SMB to Mid-Market orgs, Legal
Cetrom provides managed cloud hosting and cybersecurity services to accounting firms and professional services organizations, with specialized compliance suppor...
Corsica Technologies
Best for: Startups to Mid-Market orgs, Manufacturing, Legal
Corsica Technologies provides managed security services as part of a full-service IT managed services practice, serving small and mid-size businesses primarily...
Custom Computer Specialists
Best for: SMB to Mid-Market orgs, Education, Nonprofit
Custom Computer Specialists is a New York-based managed IT and security services provider offering cybersecurity operations, cloud services, and compliance supp...
Cybanetix
Best for: Mid-Market to Enterprise orgs, Technology, Legal
Cybanetix is a UK-based managed security services provider delivering SOC operations, threat detection, and cybersecurity consulting to enterprises across Europ...
CyberOne
Best for: Mid-Market to Enterprise orgs, Technology, Legal
CyberOne is a UK-based managed security services provider delivering 24/7 SOC operations, threat detection, and cybersecurity consulting to enterprises across E...
Darktrace
Best for: SMB to Enterprise orgs, Manufacturing, Energy & Utilities
Darktrace delivers AI-driven managed threat detection and autonomous response services, using self-learning AI to detect and respond to novel threats across dig...
Dataprise
Best for: SMB to Mid-Market orgs, Government & Public Sector, Legal
Dataprise provides managed cybersecurity, IT services, and cloud solutions for mid-market organizations, delivering SOC operations, endpoint protection, and com...
DataSure24
Best for: SMB to Mid-Market orgs, Legal
DataSure24 provides managed cybersecurity and data protection services to businesses in western New York.
Defensible Technology
Best for: SMB to Mid-Market orgs, Technology, Legal
Defensible Technology provides managed cybersecurity services and security consulting to organizations in New York City.
DOT Security
Best for: SMB to Mid-Market orgs, Manufacturing, Legal
DOT Security is the cybersecurity division of IT managed services provider USM, delivering dedicated managed security operations, MDR, and compliance services t...
e2e-assure
Best for: Mid-Market to Enterprise orgs, Legal, Energy & Utilities
e2e-assure is a UK-based managed SOC and MDR provider delivering threat detection and response services with a focus on reducing alert noise through human-led t...
enhanced.io
Best for: Mid-Market to Enterprise orgs, Technology, Legal
enhanced.io is a Scottish cybersecurity firm providing managed detection and response, security operations, and consulting services to enterprises across the UK...