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.
Summit7
Best for: SMB to Mid-Market orgs, Defense & Aerospace, Government & Public Sector
Summit7 specializes in CMMC compliance and Microsoft-centric managed security services for defense industrial base contractors and government suppliers.
T-Systems Security
Best for: Enterprise orgs, Government & Public Sector, Manufacturing
T-Systems is Deutsche Telekom's enterprise IT division founded in 1995, providing managed security services to 3,000+ enterprise and government clients globally...
TCS
Best for: Enterprise orgs, Manufacturing, Retail & E-Commerce
Tata Consultancy Services (TCS) is India's largest IT company with a global cybersecurity practice, operating Security Command Centers worldwide and delivering...
Telia Cygate
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Manufacturing
Telia Cygate provides managed security operations, SOC services, and network security management as the enterprise cybersecurity arm of the Telia Company in the...
Thrive
Best for: SMB to Mid-Market orgs, Legal, Manufacturing
Thrive is a managed services provider delivering cybersecurity operations, cloud services, and IT management for mid-market organizations across the US.
Ultraviolet Cyber
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Defense & Aerospace
Ultraviolet Cyber provides enterprise-grade managed detection and response, digital forensics, and cybersecurity consulting to government and commercial clients...
Unisys
Best for: Enterprise orgs, Government & Public Sector, Defense & Aerospace
Unisys provides managed security services including MDR, identity management, and zero trust solutions, with strong positioning in government and enterprise env...
VC3
Best for: SMB to Mid-Market orgs, Government & Public Sector, Education
VC3 provides managed IT and cybersecurity services to local governments and mid-market organizations across the southeastern United States.
Vectra AI
Best for: Mid-Market to Enterprise orgs, Technology, Government & Public Sector
Vectra AI provides AI-driven managed extended detection and response through its Attack Signal Intelligence platform, specializing in network and identity threa...
Virtual IT
Best for: SMB to Mid-Market orgs, Technology, Legal
Virtual IT is a UK-based managed cybersecurity and cloud services provider delivering security operations and compliance support to London-area businesses.
VSEC (The Vietnamese Security Network)
Best for: Mid-Market to Enterprise orgs, Telecommunications, Government & Public Sector
VSEC is Vietnam's leading cybersecurity company providing managed SOC services, penetration testing, and security consulting across Southeast Asia.
West Computers
Best for: SMB to Mid-Market orgs, Manufacturing, Education
West Computers provides managed IT and cybersecurity services to businesses in Mississippi.