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  • Sector: Enterprise Solutions
  • Location: Ontario, Canada
  • Date of Investment: 2013

eSentire, Inc. is the Authority in Managed Detection and Response, protecting the critical data and applications of 2000+ organizations in 80+ countries, representing 35 industries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events. Combining cutting-edge machine learning XDR technology, 24/7 Threat Hunting, and proven security operations leadership, eSentire mitigates business risk, and enables security at scale. The Team eSentire difference means enterprises are protected by the best in the business with a named Cyber Risk Advisor, 24/7 access to SOC Cyber Analysts, Elite Threat Hunters, and industry-leading threat intelligence research from eSentire’s Threat Response Unit (TRU). eSentire provides Managed Risk, Managed Detection and Response and Incident Response services. 

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Edison Team
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Lenard Marcus
Lenard Marcus General Partner

Did you know?
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eSentire's platform ingests threat signals, correlating indicators to detect, respond to, and automatically disrupt threats in minutes —
with a mean time to contain of 15 minutes.

Job opportunities
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Finance Business Partner

eSentire Ontario, Canada February 4, 2026

Manager, Procurement

eSentire Ontario, Canada January 27, 2026

Senior Threat Intelligence Researcher

eSentire United Kingdom January 27, 2026

Senior Threat Intelligence Researcher

eSentire Cork, Ireland January 27, 2026

Account Executive

eSentire Multiple locations January 22, 2026

Senior Digital Forensic Investigator

eSentire United Kingdom January 20, 2026