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.
UnderDefense
Best for: SMB to Enterprise orgs, Technology, Retail & E-Commerce
UnderDefense provides managed detection and response, penetration testing, and security consulting with a hands-on, client-focused approach for mid-market compa...
UST
Best for: Enterprise orgs, Retail & E-Commerce, Technology
UST provides managed cybersecurity services, SOC operations, and security consulting as a global IT services company serving enterprise clients across multiple...
Verizon
Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Manufacturing
Verizon delivers managed security services leveraging its global network infrastructure, proprietary threat intelligence from the annual DBIR report, and a larg...
Vodafone Business Security
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Manufacturing
Vodafone Business provides managed security services, SOC operations, and threat intelligence as part of one of the world's largest telecommunications groups, s...
Windstream Enterprise
Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Manufacturing
Windstream Enterprise provides managed security services, including managed firewall, endpoint protection, and SIEM management, as part of its network-centric e...
Wipro Cybersecurity
Best for: Enterprise orgs, Manufacturing, Energy & Utilities
Wipro is a global technology leader with a large-scale MSSP practice, operating 14 Security Operations Centers across North America, Europe, and Asia-Pacific an...
WithSecure
Best for: Mid-Market to Enterprise orgs, Manufacturing, Technology
WithSecure provides MDR, endpoint protection, and cloud security as the enterprise spin-off of F-Secure, focused on mid-market and enterprise organizations acro...
XeneX SOC
Best for: SMB to Enterprise orgs, Technology, Retail & E-Commerce
XeneX SOC provides AI-enhanced security operations center services including 24/7 threat monitoring, managed detection and response, and compliance support for...
ZeroFox
Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Technology
ZeroFox provides managed digital risk protection, external threat intelligence, and adversary disruption services, specializing in threats that originate outsid...