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.
Nucleus Networks
Best for: SMB to Mid-Market orgs, Technology
Nucleus Networks is a SOC 2 Type II certified managed IT and cybersecurity provider serving small and mid-sized businesses across Canada with a dedicated cybers...
NVISO
Best for: Mid-Market to Enterprise orgs, Energy & Utilities, Government & Public Sector
NVISO is a Belgian cybersecurity services company providing managed detection and response, penetration testing, and security consulting for European organizati...
Obrela Security Industries
Best for: Mid-Market to Enterprise orgs, Energy & Utilities, Telecommunications
Obrela Security Industries provides managed detection and response and SOC services from its operations centers in Europe and the Middle East, specializing in r...
OpenText
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Defense & Aerospace
OpenText provides managed security services built on its ArcSight and EnCase platforms, serving large enterprises with mature security programs that need operat...
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...
Performanta
Best for: Mid-Market to Enterprise orgs, Manufacturing, Energy & Utilities
Performanta is a cybersecurity services company with operations in the UK and South Africa, delivering managed detection and response, SOC services, and Microso...
ProArch Technologies
Best for: Mid-Market to Enterprise orgs, Manufacturing, Technology
ProArch provides managed cybersecurity services, cloud solutions, and data analytics to mid-market organizations, with a strong focus on Microsoft security tech...
Proper Sky
Best for: SMB to Mid-Market orgs, Nonprofit
Proper Sky is a managed IT and cybersecurity provider based in Abington, Pennsylvania, delivering real-time security monitoring and incident response services w...
Quorum Cyber
Best for: SMB to Enterprise orgs, Government & Public Sector, Manufacturing
Quorum Cyber is a UK-based MSSP founded in 2016 in Edinburgh, offering Microsoft-native managed detection and response to 350+ global clients and ranked #50 on...
Rainbow Secure
Best for: SMB to Mid-Market orgs, Education, Government & Public Sector
Rainbow Secure provides multi-layer authentication and managed cybersecurity services with a focus on identity protection.
Securely Managed
Best for: SMB to Mid-Market orgs, Manufacturing
Securely Managed delivers cybersecurity and IT management services to businesses in Michigan, providing threat monitoring, compliance support, and cloud securit...
Securonix
Best for: Mid-Market to Enterprise orgs, Technology, Government & Public Sector
Securonix provides managed SIEM and UEBA services through its cloud-native analytics platform, specializing in insider threat detection and advanced behavioral...