Microsoft Sentinel MSSP Providers

Microsoft Sentinel, previously branded as Azure Sentinel, is a cloud-native SIEM and SOAR platform built on Azure that provides intelligent security analytics across an organization's entire environment. Sentinel collects data from users, devices, applications, and infrastructure, both on-premises and across multiple clouds. It applies analytics rules, machine learning, and Microsoft threat intelligence to detect threats, and it supports automated response through integration with Logic Apps playbooks.

MSSPs use Microsoft Sentinel as a managed SIEM platform for organizations that prefer cloud-native log management and threat detection without on-premises SIEM infrastructure. Sentinel's native integration with Azure, Microsoft 365, and the Defender product family makes it particularly effective for organizations within the Microsoft ecosystem. MSSPs provide detection engineering, log source onboarding, incident triage, threat hunting, and playbook development as managed services.

How to Evaluate an MSSP for Microsoft Sentinel

  • Built-in Sentinel detection templates are a starting point, not a finished product. The provider should build and maintain custom analytics rules tuned to your environment, not just enable defaults.
  • Azure log ingestion charges can escalate without careful workspace and data collection rule design. The MSSP should have a clear cost management strategy for your Sentinel deployment.
  • Automated response through Logic Apps playbooks is where Sentinel delivers operational efficiency. Confirm whether the MSSP develops custom playbooks or handles all response actions manually.
  • If your environment includes non-Microsoft security tools, press on the provider's experience integrating those data sources into Sentinel, since connector quality varies widely.
  • If you switch MSSPs later, confirm who owns the custom analytics rules, playbooks, and workbook dashboards built in your Sentinel workspace.

Managed Sentinel vs. Building Your Own SOC

Running Microsoft Sentinel in-house requires ongoing detection engineering, log source management, playbook development, and cost optimization across Azure workspaces. Most organizations underestimate the staffing needed: a well-run Sentinel deployment typically requires at least two to three dedicated engineers plus analysts.

An MSSP that manages Sentinel handles this operational burden while you retain ownership of the workspace and data. The key question is whether the MSSP builds detection and response capability on top of your Sentinel instance or treats it as just another alert source to forward. The best providers do the former, actively tuning analytics rules and building playbooks specific to your environment.

Microsoft Sentinel Adoption

35% of MSSPs in our dataset (139 of 401) support Microsoft Sentinel.

Top Microsoft Sentinel MSSP Providers

139 providers supporting Microsoft Sentinel, compared by integration depth, module coverage, response model, and service scope.

MSSPProviders.io is a curated directory of managed security providers. Listings are informational and do not imply ranking or endorsement.

Featured
CrowdStrike logo

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+)
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Featured
eSentire logo

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+)
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Featured
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)
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Sophos

Verified

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+)
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Accenture Security logo

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+)
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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+)
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Advens logo

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+)
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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+)
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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+)
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apecore

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

apecore is a Belgian cybersecurity company providing managed security services and compliance consulting across Belgium and Europe.

Mechelen, Belgium51-200 employees30 minutes SLA
Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Vulnerability ManagementCompliance Management+1 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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Arctiq logo

Arctiq

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

Arctiq provides managed security and IT infrastructure services specializing in identity security, cloud security, and zero trust implementations for enterprise...

Irvine, CA51-200 employees1 hour SLA
Identity & Access Management (IAM)Cloud SecurityManaged Detection & Response (MDR)
Serves: Mid-Market (201-1000), Enterprise (1000+)
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Armor Defense logo

Armor Defense

Best for: SMB to Enterprise orgs, Government & Public Sector, Technology

Armor Defense is a cloud-native MSSP founded in 2009 in Plano, TX, delivering managed security for cloud workloads with a strong focus on compliance, healthcare...

Plano, TX200-500 employees15 minutes SLA
Managed Detection & Response (MDR)Compliance ManagementVulnerability ManagementIncident Response+3 more
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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Ascend Technologies

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

Ascend Technologies provides managed cybersecurity, cloud services, and IT infrastructure management for mid-market organizations across the United States.

Chicago, IL200-500 employeesNot disclosed SLA
Security Operations Center as a Service (SOCaaS)Endpoint ProtectionVulnerability ManagementCloud Security
Serves: SMB (51-200), Mid-Market (201-1000)
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AT&T Cybersecurity logo

AT&T Cybersecurity

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

AT&T Cybersecurity, building on the AlienVault acquisition, delivers managed threat detection and response services powered by the USM Anywhere platform and AT&...

San Antonio, TX1000+ employees30 minutes SLA
Managed Detection & Response (MDR)SIEM ManagementVulnerability ManagementEndpoint Protection+5 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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Atos Cybersecurity logo

Atos Cybersecurity

Best for: Enterprise orgs, Government & Public Sector, Defense & Aerospace

Atos is a European IT services leader and one of the largest global MSSPs, operating 17 Security Operations Centers and serving 2,000+ enterprise clients with 2...

Bezons, France1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Threat IntelligenceIncident Response+4 more
Serves: Enterprise (1000+)
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Avertium logo

Avertium

Best for: SMB to Enterprise orgs, Manufacturing, Government & Public Sector

Avertium provides managed security services, threat detection, and cyber advisory, formed from the merger of several established regional MSSPs to create a nati...

Phoenix, AZ200-500 employees30 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+)
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Barracuda Networks

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

Barracuda Networks delivers managed XDR, email security, and network protection services, with a strong focus on enabling MSPs and MSSPs through its partner-cen...

Campbell, CA1000+ employeesNot disclosed SLA
Managed Detection & Response (MDR)Email SecurityEndpoint ProtectionNetwork Security Monitoring+2 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)
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Bitdefender logo

Bitdefender

Best for: SMB to Enterprise orgs, Technology, Education

Bitdefender provides MDR through its GravityZone platform, offering 24/7 security monitoring, threat hunting, and incident response for organizations of all siz...

Bucharest, Romania1000+ employeesNot disclosed SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityThreat Intelligence+2 more
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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Blueshift Cybersecurity

Best for: SMB to Enterprise orgs, Government & Public Sector, Education

Blueshift Cybersecurity delivers AI-powered XDR-as-a-service with a 24/7 US-based SOC, managed SIEM, and network detection and response tailored for SMB and ent...

US51-200 employeesNot disclosed SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Extended Detection & Response (XDR)SIEM Management+6 more
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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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.

New York, NY500-1000 employees15 minutes SLA
Managed Detection & Response (MDR)Cloud SecurityIncident ResponseThreat Intelligence+1 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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Blumira logo

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...

Ann Arbor, MI51-200 employees1 hour SLA
SIEM ManagementManaged Detection & Response (MDR)Cloud SecurityCompliance Management+2 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)
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Bridewell logo

Bridewell

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

Bridewell is a UK-based MSSP founded in 2010 specializing in 24/7 managed security for critical national infrastructure, including civil aviation, energy, finan...

Reading, UK200-500 employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Cloud SecurityVulnerability Management+3 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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BT Security logo

BT Security

Best for: Enterprise orgs, Government & Public Sector, Telecommunications

BT Security is the cybersecurity division of British Telecom, one of the world's largest telecom operators, delivering managed security services to 6,400+ enter...

London, UK1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementNetwork Security Monitoring+5 more
Serves: Enterprise (1000+)
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Byte Tek Solutions logo

Byte Tek Solutions

Best for: SMB to Mid-Market orgs, Manufacturing

Byte Tek Solutions provides managed IT and cybersecurity services to businesses in Tennessee.

Knoxville, TN51-200 employees1 hour SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityVulnerability Management+1 more
Serves: SMB (51-200), Mid-Market (201-1000)
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