eSentire is a managed detection and response cybersecurity provider that helps organizations anticipate, withstand, and recover from cyberattacks. Founded in 2001, it combines 24/7 human-led security operations with the Atlas Platform to identify, investigate, contain, and remediate threats across hybrid environments.
The company has expanded beyond core MDR into Continuous Threat Exposure Management and Digital Forensics and Incident Response, giving customers support before, during, and after security incidents. eSentire serves more than 2,000 organizations across 80+ countries and is focused on reducing business disruption, improving attack surface visibility, and strengthening cyber resilience over time.
Offerings, Capabilities, and Integrations
eSentire delivers managed security operations that combine continuous monitoring, threat hunting, investigation, containment, and remediation across endpoint, network, log, cloud, identity, asset, and vulnerability signals. Its operating model is built around taking action on behalf of customers rather than simply escalating alerts, blending automated disruption with expert human validation and response.
The Atlas Platform is designed to work with existing environments, with 300+ technology integrations across security tools and SaaS platforms. eSentire also layers exposure management, advisory support, threat intelligence, executive reporting, and mobile access into the customer experience so teams can monitor posture, investigate incidents, and guide longer-term risk reduction.
Products and Services
- All-in-One eSentire MDR: 24/7 multi-signal managed detection and response service that correlates endpoint, network, log, cloud, identity, asset, and vulnerability telemetry and combines automated disruption with human-led investigation and containment.
- MDR for Microsoft: Managed detection, response, and remediation service for Microsoft environments, covering Microsoft Sentinel and Microsoft Defender for Endpoint, Identity, Office 365, and Cloud Apps.
- MDR for AWS: Managed detection and response service for AWS environments that combines cloud, network, and endpoint monitoring with vulnerability management and AWS-focused security operations.
- Digital Forensics and Incident Response: Digital forensics and incident response portfolio spanning incident response readiness, incident response retainer, and emergency incident response services with remote threat suppression and forensic investigation support.
- Continuous Threat Exposure Management Services: Exposure management and advisory services that help customers identify, prioritize, and mitigate security gaps through continuous assessment, testing, and risk reduction planning.
- Atlas Platform: Open security operations platform that connects to customer telemetry across existing tools and powers AI-assisted detection, investigation, and response workflows.
- Atlas Operations Center: Customer-facing operations portal and mobile experience that provides real-time dashboards, investigation visibility, asset and risk views, reporting, and collaboration with eSentire.
- Managed Vulnerability Service: Managed vulnerability management service that continuously scans on-premises and cloud assets, prioritizes exposures and attack paths, and provides expert remediation guidance.
- CISO and Advisory Services: Advisory services that support security program maturity, policy and architecture review, incident response planning, and broader cyber risk strategy.
- Managed Phishing and Security Awareness Training: Managed phishing simulation and security awareness program designed to measure user resilience, reduce social engineering risk, and support compliance and behavioral change.
- Atlas Nexus Network: Partner-focused offering that enables managed service providers and systems integrators to license and operate a dedicated instance of the Atlas XDR platform to build differentiated security services.
Target Customers
eSentire primarily serves mid-market and enterprise organizations that need 24/7 detection and response without building a full in-house security operations function. Its services are well aligned to companies with hybrid or multi-cloud environments, lean internal security teams, high compliance requirements, or elevated business interruption risk.
The company has strong relevance in highly targeted and regulated sectors including financial services, healthcare, legal, manufacturing, retail, construction, private equity, government and education, and food supply. It also appeals to organizations standardizing on Microsoft security technologies, running significant AWS workloads, or seeking a tighter connection between exposure management, MDR, and incident response.
Beyond end-user organizations, eSentire also addresses channel and service-provider buyers through partner-led offerings built on its Atlas technology.
Cloud Integrations and Marketplace
- AWS Marketplace: eSentire maintains an AWS Marketplace seller presence with listings tied to its AWS security and adjacent offerings, including threat intelligence, managed vulnerability, cloud workload protection, MDR for network use cases on AWS, and log monitoring services.
- Microsoft Azure Marketplace: eSentire has Microsoft Azure Marketplace listings for its Microsoft-focused managed detection and response offerings, including services built around Microsoft Defender for Endpoint and Microsoft Sentinel.
Key People
- James C. Foster: Chief Executive Officer
- Dustin Rigg Hillard: Chief Product and Technology Officer
- Matt Neisler: Chief Financial Officer
- Matt Vitale: Chief Revenue Officer
- Leslie Marinaro: Chief Customer Officer
- Tim O’Rourke: Chief Marketing Officer
- Mark Gillett: Chief Product Officer
- Ilan Mindel: Chief Cyber Officer
- Rob Watson: SVP, Security Services
- Dani Averill: Chief of Staff
Key Facts
- Headquarters: Waterloo, Ontario, Canada
- Employees: Approximately 600
- Annual Revenue: $150M-$200M
- Parent Company: Warburg Pincus
- Subsidiaries: None
- Publicly Listed: No – privately held
Analyst Recognitions
- Gartner: Included in Gartner Market Guide for Managed Detection and Response (2025).
- Forrester: Strong Performer in The Forrester Wave™: Managed Detection and Response Services, Q1 2025. Leader in The Forrester Wave™: Managed Detection and Response Services in Europe, Q3 2025. Customer Favourite in The Forrester Wave™: Managed Detection and Response Services in Europe, Q3 2025.
- IDC: Leader in IDC MarketScape Worldwide Managed Detection and Response 2024 Vendor Assessment. Top scores among Leaders for Security Strategy in IDC MarketScape Worldwide Managed Detection and Response 2024 Vendor Assessment.
