CISO Tribune

Vendor comparison · 2 companies

eSentire vs Stellar Cyber

eSentire sells MDR with multi-signal attack surface coverage and 24/7 Elite threat hunters working as one continuous security program across any vendor stack. eSentire offers 24/7 SOC-as-a-Service with unlimited threat hunting and incident handling. eSentire describes Multi-Signal MDR with 300+ technology integrations to support existing investments. Stellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities. CISO Tribune files both under MDR and managed SOC. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • eSentire
  • Stellar Cyber
eSentire vs Stellar Cyber: Products, Customers and Funding Compared
eSentireeSentire sells MDR with multi-signal attack surface coverage and 24/7 Elite threat hunters working as one continuous security program across any vendor stack. eSentire offers 24/7 SOC-as-a-Service with unlimited threat hunting and incident handling. eSentire describes Multi-Signal MDR with 300+ technology integrations to support existing investments.esentire.comStellar CyberStellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities.stellarcyber.ai
What it sells
  • Atlas Preempt[3][5]Deploys AI Operatives to continuously validate attack paths.
  • Atlas MDR[5]MDR sold in Professional, Enhanced and Elite packages.
  • 24/7 SOC-as-a-Service[5]24/7 SOC-as-a-Service with unlimited threat hunting and incident handling.
  • Stellar Cyber Open XDR PlatformA SecOps platform that unifies SIEM, network detection and response, identity threat detection and response, and behavior analytics with AI-driven detection, investigation and response.
Categories
Headquarters
Canada[2]Not stated on its pages
Founded
2001[2][5]Not stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[3][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • September 15, 2026eSentire announced it acquired a stealth-mode AI security startup and incorporated its product and technology into the Atlas Platform as Atlas AIDR.[6]
  • October 5, 2026Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.[16]
G2 and Gartner Peer Insights
  • G2: listed, seen November 3, 2026[4]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, the company sells mainly to organisations that want to extend their own team with a 24/7 Security Operations Center. Its industry pages speak of protecting insurance operations, defending financial services, defending patient data and clinical operations, protecting portfolio companies, and stopping threats before they disrupt production. The pages also say Atlas connects to any signal across your current security tools, which reads as a fit for teams that already run security tools. The security operations center entry names boards, regulators, and cyber insurers as parties that require a human accountability layer.Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs. Stellar Cyber designs its enterprise platform for security teams of any size or skill level. Stellar Cyber Open XDR can be deployed on-premises, from the cloud, or co-managed by an MSSP.
Last verified
November 2, 2026November 9, 2026

Where they overlap

  • eSentire and Stellar Cyber are both filed under MDR and managed SOC.

Where they differ, field by field

  • eSentire's primary category is MDR and managed SOC; Stellar Cyber's is SIEM.
  • eSentire is also filed under Incident response and forensics and Exposure prioritisation and CTEM. Stellar Cyber is also filed under AI SOC analysts.
  • eSentire lists Atlas Preempt, Atlas MDR and 24/7 SOC-as-a-Service. Stellar Cyber lists Stellar Cyber Open XDR Platform.
  • eSentire is headquartered in Canada.
  • eSentire was founded in 2001.
  • Stellar Cyber is privately held.

What it sells: eSentire

What Atlas MDR does[5]
Atlas MDR comes in three packages, Professional, Enhanced and Elite, so a customer can choose the level of 24/7 coverage, log retention, threat hunting and offensive testing. One package adds log detection, Atlas SIEM with 90-day retention, round-the-clock threat hunting, automated response, and quarterly offensive testing.

Questions about eSentire and Stellar Cyber

What do eSentire and Stellar Cyber sell?
eSentire sells Atlas Preempt, Atlas MDR and 24/7 SOC-as-a-Service. Stellar Cyber sells Stellar Cyber Open XDR Platform.
Are eSentire and Stellar Cyber in the same category?
They share MDR and managed SOC. eSentire's primary category is MDR and managed SOC and Stellar Cyber's is SIEM.
Where are eSentire and Stellar Cyber headquartered?
eSentire is headquartered in Canada.
When were eSentire and Stellar Cyber founded?
eSentire was founded in 2001.
Who owns eSentire and Stellar Cyber?
Stellar Cyber is privately held.
Who are eSentire and Stellar Cyber sold to?
From its own pages, the company sells mainly to organisations that want to extend their own team with a 24/7 Security Operations Center. Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs.
What have eSentire and Stellar Cyber announced recently?
September 15, 2026: eSentire announced it acquired a stealth-mode AI security startup and incorporated its product and technology into the Atlas Platform as Atlas AIDR. October 5, 2026: Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.

About eSentire

eSentire sells MDR with multi-signal attack surface coverage and 24/7 Elite threat hunters working as one continuous security program across any vendor stack. eSentire offers 24/7 SOC-as-a-Service with unlimited threat hunting and incident handling. eSentire describes Multi-Signal MDR with 300+ technology integrations to support existing investments.[1]

Atlas connects to any signal across any vendor stack and powers adaptive AI Operatives that expose, detect, and neutralize cyberattacks. Atlas connects to any signal across a customer's current security tools, and eSentire says that whatever a customer is running, eSentire is running with them. Atlas Preempt deploys AI Operatives to continuously validate attack paths exposing attacker targets of opportunity before they take advantage.

eSentire says its SOC extends a customer's team with immediate expertise, hands-on remediation, and the human accountability layer that boards, regulators, and cyber insurers require. eSentire says customers can see what its SOC sees, review investigations, and see how eSentire is protecting their business. Response and Remediation pairs machine-speed containment with human judgment, delivering full threat response that is policy-bounded, reversible, and explainable. eSentire offers unlimited Incident Response with a threat suppression guarantee, anytime, anywhere.

Atlas MDR comes in three packages, Professional, Enhanced and Elite, so a customer can choose the level of 24/7 coverage, log retention, threat hunting and offensive testing. In that package, eSentire analysts watch the customer's environment around the clock.

eSentire says it protects thousands of organizations across 35+ industries around the world. eSentire was founded in 2001, and its Controlled Autonomy SecOps operating model pairs agentic AI operatives with engineered human-judgment controls. eSentire provides cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). eSentire is the official cybersecurity partner of AVFC.

eSentire sets out to protect insurance operations from cyber attacks. eSentire sets out to defend financial services from cyber disruption. eSentire sets out to protect portfolio companies from cyber risk. eSentire sets out to defend patient data and clinical operations. eSentire sets out to secure dealership operations and customer data. eSentire sets out to protect public sector and education systems.

eSentire on the record

Sources

eSentire full record

  1. [1]Esentire managed detection and responseeSentire · esentire.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Security You Can Trust. Protecting Organizations Worldwide. | eSentireeSentire · undated page, accessed September 27, 2026 · Tier A
  3. [3]Company | eSentireeSentire · undated page, accessed October 24, 2026 · Tier A
  4. [4]eSentire Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed October 24, 2026 · Tier C
  5. [5]Managed Detection and Response Pricing and Packaging | eSentireeSentire · undated page, accessed November 3, 2026 · Tier A
  6. [6]eSentire Acquires Stealth-Mode AI Security Startup, Bringing New AI Observability and Control to the Atlas PlatformBusiness Wire · published September 15, 2026 · Tier A

Stellar Cyber full record

  1. [1]ProductStellar Cyber · stellarcyber.ai · published February 25, 2026 · Tier A
  2. [2]Stellar cyber announces agentic ai autonomous soc in 6 4 0 releaseStellar Cyber · stellarcyber.ai · published March 16, 2026 · Tier A
  3. [3]Stellar cyber named one of americas best startup employersStellar Cyber · stellarcyber.ai · published November 21, 2024 · Tier A
  4. [4]ISOC Platform with AI SIEM, NDR, Open XDR & Multi-Layer AIStellar Cyber · undated page, accessed October 29, 2026 · Tier A
  5. [5]Stellar Cyber Automation-driven SecOps PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Stellar Cyber vs Sumo Logic: Expert SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Stellar Cyber vs Splunk: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Integrated Security Operations Center (ISOC) PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]SC vs Microsoft Sentinel: Comprehensive SIEM SolutionStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]SC vs. CrowdStrike | Compare Leading Cybersecurity PlatformsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]EDR Software, Endpoint Detection & ResponseStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Stellar Cyber Autonomous SOC PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  13. [13]Stellar Cyber Multi-Layer AI™ | Advanced AI Platform for SecOpsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  14. [14]Stellar Cyber AI SIEM | AI-Driven SIEM PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  15. [15]Stellar Cyber vs AlienVault: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  16. [16]Stellar Cyber 7.0 Makes the Agentic SOC Measurable, Actionable and Operational at ScaleStellar Cyber · published October 5, 2026 · Tier A

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