eSentire MDR

eSentire is a managed detection and response service from eSentire for organisations that want 24-hour human-staffed threat detection and response rather than running their own security operations centre. It covers endpoint, network, log, cloud and identity signals, and bundles digital forensics and incident response into the service rather than selling it as a separate line item; eSentire states its incident response is unlimited, with a threat suppression guarantee and no cap on the number or size of incidents handled, and no charge for unused IR hours. The service suits MSPs and MSSPs that want to add MDR to their own security offering through eSentire's channel partner programme, as well as mid-market and enterprise organisations buying directly, and it suits buyers who already run an endpoint tool such as CrowdStrike, SentinelOne, Microsoft Defender or Palo Alto Networks, since eSentire is built to layer on top of over 300 existing security technologies rather than replace them.

eSentire sells three packages, Atlas Essentials, Atlas Advanced and Atlas Complete, that differ by coverage depth and whether a named Cyber Risk Advisor is included, but does not publish prices for any of them (checked September 2026). Buyers request a quote, and third parties that track SaaS contract values report typical eSentire MDR spend in the tens of thousands to low hundreds of thousands of dollars a year depending on endpoint count and log volume, though these are third-party estimates rather than figures eSentire publishes. eSentire does not advertise a free trial or a free tier for this service. The company is a CrowdStrike elite Powered Service Provider and a Microsoft Security Solutions Partner, and also integrates with SentinelOne and Palo Alto Networks endpoint platforms. eSentire was founded in 2001 and is headquartered in Waterloo, Ontario, Canada, and is majority-owned by Warburg Pincus. Anyone evaluating eSentire should ask for a written quote covering endpoint count, log sources and any professional services fees for onboarding, and confirm exactly what the threat suppression guarantee covers before signing, since guarantee terms vary by package.

eSentire suits an MSP or mid-market buyer that wants a single MDR vendor to own detection, response and the incident response work that follows a breach, rather than stitching an EDR tool to a separate IR retainer. The unlimited incident response claim is unusual among MDR vendors and worth pressing on specifics for, since most rivals such as Arctic Wolf and Sophos MDR cap IR hours or sell it separately. Because eSentire does not publish prices, get a written quote broken down by endpoint count, log ingestion and any onboarding fee before comparing it against a rival, and ask exactly what the threat suppression guarantee pays out and under what conditions.