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.
BlueVoyant
Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Technology
BlueVoyant is an AI-driven managed cyber defense firm founded in 2017, protecting networks, supply chains, and digital footprints for 1,000+ global clients.
Blumira
Best for: Startups to Mid-Market orgs, Technology, Education
Blumira provides automated threat detection and response designed for small and mid-size organizations that lack dedicated security teams, with a focus on simpl...
Brite
Best for: SMB to Mid-Market orgs, Education, Manufacturing
Brite provides managed cybersecurity and IT services to organizations across New York and the Northeast, offering SOC-as-a-Service, vulnerability management, an...
Byte Tek Solutions
Best for: SMB to Mid-Market orgs, Manufacturing
Byte Tek Solutions provides managed IT and cybersecurity services to businesses in Tennessee.
Capgemini Cybersecurity
Best for: Enterprise orgs, Retail & E-Commerce, Government & Public Sector
Capgemini is a French global IT leader with a mature MSSP practice, operating Cyber Defense Centers across Europe, North America, and India and serving 2,000+ e...
Certified NETS
Best for: SMB to Mid-Market orgs, Manufacturing
Certified NETS provides managed IT and cybersecurity services to businesses in the St. Louis area.
CETech
Best for: SMB to Mid-Market orgs, Manufacturing, Education
CETech delivers managed IT and cybersecurity services to businesses in upstate New York, offering threat monitoring, compliance support, and cloud security.
CISO Global
Best for: SMB to Mid-Market orgs, Government & Public Sector, Manufacturing
CISO Global provides managed security operations, compliance services, and incident response as a publicly traded cybersecurity services firm formerly known as...
Claranet Cyber Security
Best for: SMB to Enterprise orgs, Retail & E-Commerce, Technology
Claranet Cyber Security provides managed security monitoring, penetration testing, and compliance services as part of the European managed services provider Cla...
Computer Systems Incorporated
Best for: SMB to Mid-Market orgs, Manufacturing
Computer Systems Incorporated (CSI) provides managed IT and cybersecurity services to businesses in the Omaha area and across the Midwest.
Critical Start
Best for: Mid-Market to Enterprise orgs, Technology, Manufacturing
Critical Start is a Plano, TX-based MDR provider founded in 2012, known for their Cyber Operations Risk and Response (CORR) platform and transparent alert-resol...
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...