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.
Sygnia
Best for: Mid-Market to Enterprise orgs, Technology, Energy & Utilities
Sygnia is an elite Israeli cybersecurity firm founded in 2015 by veterans of Unit 8200, delivering advanced incident response, threat hunting, and MDR services...
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...
Tactical Intelligence Security
Best for: SMB to Enterprise orgs, Telecommunications, Government & Public Sector
Tactical Intelligence Security (TAISE) is a Ghanaian cybersecurity firm providing managed security operations, threat intelligence, and compliance services acro...
Talion
Best for: Mid-Market to Enterprise orgs, Defense & Aerospace, Energy & Utilities
Talion is a UK managed security services provider that emerged from BAE Systems' managed security business, delivering SOC operations and threat intelligence to...
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...
Telefonica Tech
Best for: Mid-Market to Enterprise orgs, Telecommunications, Government & Public Sector
Telefonica Tech is the cybersecurity and digital transformation arm of the Telefonica Group, providing managed security operations and MDR services across Europ...
Telos
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Defense & Aerospace
Telos Corporation is an Ashburn, VA-based cybersecurity company founded in 1968, providing managed security and risk management services to US federal agencies...
Telstra Purple
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Energy & Utilities
Telstra Purple is the enterprise cybersecurity division of Telstra, delivering managed security operations, SOC services, and security consulting for Australian...
Tempest Security Intelligence
Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Government & Public Sector
Tempest Security Intelligence is Brazil's largest independent cybersecurity company, providing managed security operations, threat intelligence, and security co...
Tevora
Best for: SMB to Enterprise orgs, Defense & Aerospace, Technology
Tevora is an Irvine, CA-based cybersecurity firm founded in 2003 offering managed security, compliance, and risk services with deep expertise in financial servi...
Thales Cybersecurity
Best for: Enterprise orgs, Defense & Aerospace, Government & Public Sector
Thales Group is a French defense and technology conglomerate founded in 1893, operating a major cybersecurity division with managed security services, data prot...
Total Assure
Best for: SMB to Mid-Market orgs, Government & Public Sector, Nonprofit
Total Assure provides managed cybersecurity services and IT consulting in the Washington D.C. area.