MSSPProviders.io

Managed security services directory

Managed Security Service Providers

Managed security service providers help organizations monitor threats, operate security tools, respond to incidents, and maintain security coverage when internal teams cannot staff every function. Use this broad directory as the primary starting point for comparing MSSPs across service scope, technology experience, industry fit, and operating model.

Why organizations hire managed security providers

Security teams often have more alerts, tools, and compliance responsibilities than their available staff can manage. The right provider closes a defined operational gap, such as continuous monitoring or incident response, while fitting the buyer's existing stack and escalation process. A useful comparison therefore looks beyond brand recognition to the exact work the provider will own.

Compare managed security service providers

The providers below represent the directory's broad MSSP market. Compare their listed services, customer-size focus, industries, supported platforms, response commitments, and claimed profile status before building a focused shortlist.

Arctic Wolf

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

Arctic Wolf delivers security operations as a concierge service, combining its cloud-native platform with a dedicated team of security experts assigned to each...

Eden Prairie, MN1000+ employees15 minutes SLA

Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementVulnerability Management+4 more

Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)

CrowdStrike

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

CrowdStrike provides fully managed endpoint protection and detection services built on the Falcon platform, offering turnkey MDR with their own security experts...

Austin, TX1000+ employees15 minutes SLA

Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityIncident Response+3 more

Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)

eSentire

Best for: Mid-Market to Enterprise orgs, Legal, Insurance

eSentire is a global MDR leader founded in 2001, protecting 2,000+ organizations across 80+ countries with 24/7 threat detection, containment, and response.

Cambridge, Ontario, Canada500-1000 employees15 minutes SLA

Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Endpoint Detection & Response (EDR)Cloud Security+3 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

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)

Sophos

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

Sophos MDR delivers managed detection and response built on the Sophos security ecosystem, offering both Sophos-native and multi-vendor environment support for...

Abingdon, UK1000+ employees15 minutes SLA

Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityIncident Response+8 more

Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)

12 Points Technologies

Best for: SMB to Mid-Market orgs, Government & Public Sector, Legal

12 Points Technologies is a veteran-owned managed IT and cybersecurity provider in Omaha, Nebraska, offering a Secure by Design approach that integrates advance...

Omaha, NE51-200 employeesNot disclosed SLA

Managed Detection & Response (MDR)Vulnerability ManagementEndpoint ProtectionEmail Security+2 more

Serves: SMB (51-200), Mid-Market (201-1000)

360 SOC

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

360 SOC provides AI-driven SOC-as-a-Service, delivering 24/7 threat monitoring, detection, and response at accessible price points for SMBs and MSPs.

Phoenix, AZ51-200 employees15 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)SIEM ManagementThreat Intelligence+1 more

Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)

Abacus

Best for: SMB to Mid-Market orgs, Financial Services

Abacus Group provides managed IT and cybersecurity services specifically designed for alternative investment firms, hedge funds, and private equity organization...

New York, NY51-200 employees15 minutes SLA

Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityEmail Security+4 more

Serves: SMB (51-200), Mid-Market (201-1000)

ABPCyber

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

ABPCyber is a Singapore-based cybersecurity services provider delivering managed SOC operations, threat intelligence, and security consulting across Southeast A...

Singapore, Singapore51-200 employees30 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Threat IntelligenceVulnerability Management+3 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

Accent Consulting

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

Accent Consulting provides managed IT and cybersecurity services to businesses in Indiana, offering proactive security monitoring and compliance support.

Lafayette, IN51-200 employees1 hour SLA

Managed Detection & Response (MDR)Endpoint ProtectionVulnerability ManagementSecurity Awareness Training+2 more

Serves: SMB (51-200), Mid-Market (201-1000)

Accenture Security

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

Accenture Security provides managed security services as part of its global consulting and technology practice, serving large enterprises with complex, multi-na...

Dublin, Ireland1000+ employees15 minutes SLA

Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementVulnerability Management+6 more

Serves: Enterprise (1000+)

Access Systems

Best for: SMB to Mid-Market orgs, Manufacturing

Access Systems is a SOC 2 Type 1 certified managed IT provider in Iowa delivering layered cybersecurity protection through their Advanced Cybersecurity Protecti...

Waukee, IA51-200 employeesNot disclosed SLA

Managed Detection & Response (MDR)Endpoint ProtectionEmail SecurityNetwork Security Monitoring

Serves: SMB (51-200), Mid-Market (201-1000)

Access42

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

Access42 is a Dutch managed security services provider delivering SOC operations and cybersecurity consulting in the Netherlands.

Leusden, Netherlands51-200 employees15 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Vulnerability ManagementIncident Response+1 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

ActZero

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

ActZero provides AI-driven managed detection and response, using machine learning to deliver automated threat detection and response for SMB and mid-market orga...

Vancouver, BC, Canada51-200 employeesNot disclosed SLA

Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityIncident Response

Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)

ADEO Cyber

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

ADEO is Turkey's leading independent cybersecurity company providing managed SOC services, incident response, and penetration testing across Turkey and the Midd...

Istanbul, Turkey51-200 employees15 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Penetration TestingIncident Response+1 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

Adlumin

Best for: SMB to Mid-Market orgs, Education, Government & Public Sector

Adlumin provides a managed detection and response platform purpose-built for mid-market organizations, combining SIEM, UEBA, and automated response with 24/7 ma...

Washington, DC51-200 employeesNot disclosed SLA

Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementVulnerability Management+2 more

Serves: SMB (51-200), Mid-Market (201-1000)

Advens

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

Advens is one of France's leading independent cybersecurity companies, operating a sovereign SOC and providing managed detection, response, and consulting servi...

Paris, France200-500 employees30 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Threat IntelligenceIncident Response+3 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

AEGYS DATALYTICS

Best for: Mid-Market to Enterprise orgs, Manufacturing

AEGYS DATALYTICS is a German cybersecurity company providing managed security services, data analytics-driven threat detection, and compliance consulting for Eu...

Herrsching, Germany51-200 employees30 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Threat IntelligenceVulnerability Management+2 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

AgileBlue

Best for: SMB to Enterprise orgs, Manufacturing, Technology

AgileBlue provides AI-powered SOC-as-a-Service and managed extended detection and response (MXDR) through its autonomous security operations platform.

Cleveland, OH51-200 employees15 minutes SLA

Security Operations Center as a Service (SOCaaS)Extended Detection & Response (XDR)Managed Detection & Response (MDR)Cloud Security+3 more

Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)

Agio

Best for: SMB to Mid-Market orgs, Financial Services, Healthcare

Agio provides managed cybersecurity and IT services for financial services firms and healthcare organizations, with deep expertise in hedge fund, private equity...

New York, NY200-500 employeesNot disclosed SLA

Security Operations Center as a Service (SOCaaS)Endpoint ProtectionVulnerability ManagementCompliance Management+2 more

Serves: SMB (51-200), Mid-Market (201-1000)

AKATI Sekurity

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

AKATI Sekurity is a Malaysian-based cybersecurity firm providing managed security services, penetration testing, and digital forensics across Southeast Asia.

Kuala Lumpur, Malaysia51-200 employees30 minutes SLA

Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Penetration TestingIncident Response+3 more

Serves: Mid-Market (201-1000), Enterprise (1000+)

Alert Logic

Best for: SMB to Enterprise orgs, Retail & E-Commerce, Technology

Alert Logic, now part of Fortra, provides managed detection and response with an integrated technology platform that combines SIEM, IDS, vulnerability scanning,...

Houston, TX500-1000 employees15 minutes SLA

Managed Detection & Response (MDR)SIEM ManagementVulnerability ManagementCloud Security+3 more

Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)

Altel

Best for: SMB to Mid-Market orgs, Government & Public Sector, Telecommunications

Altel is an Ecuadorian cybersecurity company providing managed security services in Ecuador and the Andean region.

Quito, Ecuador51-200 employees30 minutes SLA

Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Vulnerability ManagementCompliance Management

Serves: SMB (51-200), Mid-Market (201-1000)

Alvarez Technology

Best for: SMB to Mid-Market orgs, Manufacturing

Alvarez Technology Group provides managed IT and cybersecurity services to businesses on California's Central Coast, offering security monitoring and compliance...

Salinas, CA51-200 employees1 hour SLA

Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityVulnerability Management+2 more

Serves: SMB (51-200), Mid-Market (201-1000)

How to compare managed security service providers

Criterion 1

Define the operating outcome

Decide whether you need alert monitoring, hands-on containment, tool administration, compliance evidence, or a fully outsourced security operations function.

Criterion 2

Confirm service boundaries

Ask which actions the provider performs directly, which require your approval, and which are excluded or billed as separate incident-response work.

Criterion 3

Validate technology experience

Prioritize teams that routinely operate the SIEM, endpoint, identity, cloud, and network platforms already deployed in your environment.

Criterion 4

Review escalation and response

Compare coverage hours, severity definitions, notification channels, response targets, containment authority, and access to senior responders.

Criterion 5

Test reporting and governance

Request sample operational and executive reports, then confirm meeting cadence, named ownership, evidence retention, and service-review practices.

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Frequently asked questions

What is a managed security service provider?

A managed security service provider, or MSSP, operates selected security functions for a customer. Common responsibilities include monitoring, SIEM administration, endpoint detection, vulnerability management, incident escalation, and compliance reporting.

How should I shortlist managed security service providers?

Start with the outcomes and systems the provider must own. Then compare relevant experience, response authority, staffing model, integrations, reporting, contract terms, references, and the responsibilities that remain with your team.

Is an MSSP the same as an MDR provider?

Not exactly. MSSP is a broad operating category that can cover many security services. MDR is a more focused detection-and-response service. Some MSSPs include MDR, while some MDR providers specialize mainly in threat detection and containment.