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.

GoSecure logo

GoSecure

Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Manufacturing

GoSecure is a Montreal-based MSSP and MDR pioneer founded in 2014, recognized in Gartner's Market Guide for MDR and delivering Identity MDR and advanced threat...

Montreal, Quebec, Canada200-500 employees15 minutes SLA
Managed Detection & Response (MDR)Endpoint Detection & Response (EDR)Threat IntelligenceIncident Response+2 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
View provider

Gradient Cyber

Best for: SMB to Mid-Market orgs, Technology, Manufacturing

Gradient Cyber delivers managed extended detection and response (MXDR) services purpose-built for mid-market organizations, combining a human-led SOC with AI-dr...

US51-200 employeesNot disclosed SLA
Managed Detection & Response (MDR)Extended Detection & Response (XDR)Security Operations Center as a Service (SOCaaS)Threat Intelligence+4 more
Serves: SMB (51-200), Mid-Market (201-1000)
View provider

Grant Thornton Cybersecurity

Best for: Mid-Market to Enterprise orgs, Manufacturing, Technology

Grant Thornton provides managed security operations, incident response, and cybersecurity advisory as a leading mid-tier professional services firm.

Chicago, IL1000+ employeesNot disclosed SLA
Managed Detection & Response (MDR)Incident ResponseCompliance ManagementVulnerability Management+1 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
View provider

Group-IB

Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Telecommunications

Group-IB provides managed detection and response, threat intelligence, and digital forensics services, with globally recognized expertise in investigating and d...

Singapore500-1000 employeesNot disclosed SLA
Managed Detection & Response (MDR)Threat IntelligenceIncident ResponsePenetration Testing
Serves: Mid-Market (201-1000), Enterprise (1000+)
View provider

GTT Communications

Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Manufacturing

GTT Communications provides managed security services alongside global network connectivity, delivering managed firewall, DDoS protection, and SD-WAN security f...

McLean, VA1000+ employeesNot disclosed SLA
Firewall ManagementNetwork Security MonitoringEndpoint ProtectionCloud Security
Serves: Mid-Market (201-1000), Enterprise (1000+)
View provider
GuidePoint Security logo

GuidePoint Security

Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Technology

GuidePoint Security is a cybersecurity solutions and services firm founded in 2011 in Reston, VA with 1,200+ security experts, delivering managed security, prof...

Reston, VA1000+ employees30 minutes SLA
Managed Detection & Response (MDR)SIEM ManagementThreat IntelligencePenetration Testing+4 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
View provider

HCLTech

Best for: Enterprise orgs, Manufacturing, Technology

HCLTech is a global technology company with a large-scale MSSP practice, offering AI-powered managed security operations from five global Cyber Defense Centers...

Noida, India1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Cloud SecurityIdentity & Access Management (IAM)+4 more
Serves: Enterprise (1000+)
View provider
Huntress logo

Huntress

Best for: Startups to Mid-Market orgs, Legal, Education

Huntress provides managed security specifically for small and mid-size businesses and the MSPs that serve them, combining automated threat detection with human-...

Baltimore, MD500-1000 employees1 hour SLA
Managed Detection & Response (MDR)Endpoint ProtectionIncident ResponseThreat Intelligence+2 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)
View provider
Hurricane Labs logo

Hurricane Labs

Best for: SMB to Enterprise orgs, Technology, Manufacturing

Hurricane Labs specializes in managed Splunk SIEM services, providing 24/7 SOC monitoring, Splunk administration, and threat detection for organizations that re...

Cleveland, OH51-200 employeesNot disclosed SLA
SIEM ManagementSecurity Operations Center as a Service (SOCaaS)Threat IntelligenceIncident Response
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
View provider

i-Tracing Cybersecurity

Best for: Mid-Market to Enterprise orgs, Energy & Utilities, Retail & E-Commerce

i-Tracing is a Franco-Canadian cybersecurity consultancy and MSSP providing SOC operations, incident response, and security architecture services across Europe...

Montreal, Canada200-500 employees30 minutes SLA
Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Incident ResponsePenetration Testing+3 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
View provider
IBM Security logo

IBM Security

Best for: Enterprise orgs, Retail & E-Commerce, Manufacturing

IBM Security provides enterprise-grade managed security services backed by the X-Force threat intelligence team and a global network of security operations cent...

Armonk, NY1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementVulnerability Management+8 more
Serves: Enterprise (1000+)
View provider

Infosys

Best for: Enterprise orgs, Manufacturing, Retail & E-Commerce

Infosys is a global IT services leader with a comprehensive cybersecurity MSSP practice, operating Security Command Centers worldwide and serving Fortune 500 cl...

Bengaluru, India1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Identity & Access Management (IAM)Cloud Security+4 more
Serves: Enterprise (1000+)
View provider