CISO Tribune

Vendor comparison · 2 companies

Critical Start vs SentinelOne

Critical Start sells managed detection and response (MDR) that combines AI-powered triage with human-led investigation. SentinelOne sells an AI-native platform with unified protection across endpoint, identity, AI, and cloud. 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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  • Critical Start
  • SentinelOne
Critical Start vs SentinelOne: Products, Customers and Funding Compared
Critical StartCritical Start sells managed detection and response (MDR) that combines AI-powered triage with human-led investigation.criticalstart.comSentinelOneSentinelOne sells an AI-native platform with unified protection across endpoint, identity, AI, and cloud.sentinelone.com
What it sells
  • CORR Platform[4]The MDR platform that gives a security operations team visibility into every alert, investigation and response action.
  • Managed Detection and Response[3][10][11]MDR that combines AI-powered triage with human-led investigation.
  • Service Credits[7]A prepaid, flexible currency included in every managed service contract.
  • Vulnerability Management Services[3]Vulnerability management delivered under the same tier structure as MDR.
  • MobileSOC[12]A native iOS and Android application for real-time security operations management.
  • Purple AI[3][4][5]AI that handles triage, correlation, and routine response alongside agentic workflows.
  • Wayfinder IRR[5]On-demand breach readiness, compromise assessments, and incident response.
  • Wayfinder Emergency Response[5]On-demand access to incident response with no commitment required.
Categories
Headquarters
Not stated on its pagesMountain View, CA, USA[2]
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • July 22, 2026Critical Start announced the appointment of Francine Geist as Chief Executive Officer, effective immediately.[9]
  • June 3, 2026Critical Start released SOC AI, a multi-agent framework that powers its AI-led managed detection and response service.[11]
  • June 2, 2026Critical Start released SOC AI, a multi-agent framework that powers its AI-led managed detection and response service.[10]
  • October 29, 2026SentinelOne announced the upcoming addition of Anthropic's Claude Mythos 5.1 to its Wayfinder Frontier AI Services offering.[7]
  • March 3, 2026SentinelOne announced the appointment of Sonalee Parekh as Chief Financial Officer, effective March 24, 2026.[8]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[9]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Critical Start sells mainly to organizations that need accountability from a managed security provider, with contractual SLA commitments as the central offer. The company says it protects financial services firms, healthcare systems, manufacturers and utilities. For financial institutions, it describes ransomware, wire fraud and insider threats as the threats its MDR addresses. Its compliance reporting covers frameworks such as PCI DSS, HIPAA and NERC CIP, which points to regulated buyers. Critical Start MDR works with the customer's existing tools, so it suits teams that want to keep the security products they already run.From its own pages, SentinelOne sells to organizations ranging from global enterprises to fast-moving teams. SentinelOne offers solutions tailored to the regulatory, operational, and threat realities of specific sectors. For analysts, Purple AI and agentic workflows handle triage, correlation, and routine response. Organizations that need expert incident response right now, without a prior commitment, can use an on-demand DFIR block.
Last verified
September 27, 2026November 5, 2026

Where they overlap

  • Critical Start and SentinelOne are both filed under MDR and managed SOC.

Where they differ, field by field

  • Critical Start's primary category is MDR and managed SOC; SentinelOne's is EDR and XDR.
  • SentinelOne is also filed under Cloud-native application protection (CNAPP) and Identity threat detection and response.
  • Critical Start lists CORR Platform, Managed Detection and Response, Service Credits, Vulnerability Management Services and MobileSOC. SentinelOne lists Purple AI, Wayfinder IRR and Wayfinder Emergency Response.
  • SentinelOne is headquartered in Mountain View, CA, USA.

What it sells: Critical Start

What CORR Platform does[4]
CORR connects to a security stack through native APIs, with no proprietary agents and no forced replacements. It works through API-based integrations, with no agents to deploy and no additional infrastructure to manage.
What Managed Detection and Response does[3][10][11]
Critical Start MDR combines AI-powered triage with human-led investigation and backs every response time with a contractual SLA. Analysts contain threats directly in the customer's tools through 30+ advanced integrations.
What Service Credits does[7]
Every managed service contract includes service credits that can be spent across 30+ services. MDR for Endpoint, MDR for SIEM and VMS each include credits. Credits stack into a single bank when a customer has more than one.

What it sells: SentinelOne

What Purple AI does[3][4][5]
Purple AI and agentic workflows handle triage, correlation, and routine response. Purple AI investigates what analysts cannot reach in time. Purple AI accelerates investigations, analysis, and forensic workflows in SentinelOne engagements.
What Wayfinder IRR does[5]
Wayfinder IRR provides on-demand breach readiness, expert-led compromise assessments, and incident response. DFIR specialists contain, investigate, and eradicate confirmed or suspected breaches. SentinelOne offers five assessment types: General, M&A, Post-Breach, Insider Threat, and Targeted. One retainer secures a renewable pool of expert hours used across readiness, assessments, and response.
What Wayfinder Emergency Response does[5]
Wayfinder Emergency Response delivers on-demand access with no commitment required. SentinelOne offers an immediate 40-hour on-demand DFIR block that requires no retainer.

Questions about Critical Start and SentinelOne

What do Critical Start and SentinelOne sell?
Critical Start sells CORR Platform, Managed Detection and Response, Service Credits, Vulnerability Management Services and MobileSOC. SentinelOne sells Purple AI, Wayfinder IRR and Wayfinder Emergency Response.
Are Critical Start and SentinelOne in the same category?
They share MDR and managed SOC. Critical Start's primary category is MDR and managed SOC and SentinelOne's is EDR and XDR.
Where are Critical Start and SentinelOne headquartered?
SentinelOne is headquartered in Mountain View, CA, USA.
Who are Critical Start and SentinelOne sold to?
From its own pages, Critical Start sells mainly to organizations that need accountability from a managed security provider, with contractual SLA commitments as the central offer. From its own pages, SentinelOne sells to organizations ranging from global enterprises to fast-moving teams.
What have Critical Start and SentinelOne announced recently?
July 22, 2026: Critical Start announced the appointment of Francine Geist as Chief Executive Officer, effective immediately. October 29, 2026: SentinelOne announced the upcoming addition of Anthropic's Claude Mythos 5.1 to its Wayfinder Frontier AI Services offering.

About Critical Start

Critical Start sells managed detection and response (MDR) that combines AI-powered triage with human-led investigation. The company says tools produce thousands of alerts every day, and that Critical Start MDR works to resolve every one and backs every response time with a contractual SLA.[2][6]

CORR is the MDR platform that Critical Start uses to give a security operations team visibility into every alert, every investigation and every response action. CORR connects to a security stack through native APIs, with no proprietary agents and no forced replacements. Critical Start says CORR connects to an existing stack through API-based integrations, with no agents to deploy, no network architecture changes and no additional infrastructure to manage.[1][4][5]

More than 30 of these are advanced integrations where Critical Start analysts contain threats directly in the customer's tools. Inside the platform, AI agents analyze enriched case data, including URL analysis, suggested verdicts and investigation summaries. A certified SOC analyst validates every finding, with two-person verification on critical alerts. The Trusted Behavior Registry uses deterministic behavioral validation to auto-resolve 99.83% of known-good behaviors before a human analyst sees them.[5]

Critical Start also offers MobileSOC, a native iOS and Android application for real-time security operations management. CORR supports compliance reporting for SOC 2, ISO 27001, PCI DSS, HIPAA, GLBA, CMMC and NERC CIP.

Every managed service follows an Essentials, Enterprise and Signature packaging model. That tier structure applies across MDR for Endpoint, MDR for SIEM and Vulnerability Management Services (VMS).

Every Critical Start managed service contract includes service credits, a prepaid, flexible currency that can be spent across 30+ services. Essentials includes 5 credits, Enterprise includes 10 credits and Signature includes 20 credits per subscription. MDR for Endpoint, MDR for SIEM and VMS each include credits, and credits stack into a single bank when a customer holds more than one.[7]

Critical Start says that in 2012 three security experts who had led incident response and threat hunting at Fortune 500 companies recognized a gap in the market. The company says it protects financial services firms, healthcare systems, manufacturers and utilities across 7 continents. For financial institutions, Critical Start delivers MDR with contractual SLAs and audit-grade investigation documentation.[4][5][6][8]

Critical Start on the record

Sources

Critical Start full record

  1. [1]PlatformCritical Start · criticalstart.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Critical Start | Managed Detection and Response (MDR)Critical Start · undated page, accessed October 24, 2026 · Tier A
  3. [3]Managed Security Services | Critical StartCritical Start · undated page, accessed October 24, 2026 · Tier A
  4. [4]Security Integrations | Critical StartCritical Start · undated page, accessed October 24, 2026 · Tier A
  5. [5]Security Solutions by Environment | Critical StartCritical Start · undated page, accessed October 24, 2026 · Tier A
  6. [6]About Critical Start | Cybersecurity CompanyCritical Start · undated page, accessed October 24, 2026 · Tier A
  7. [7]Service Credits: Flexible Security Currency | Critical StartCritical Start · undated page, accessed October 24, 2026 · Tier A
  8. [8]MDR for Finance: PCI, SOX, SOC 2 | Critical StartCritical Start · undated page, accessed October 24, 2026 · Tier A
  9. [9]Critical Start Appoints Francine Geist as Chief Executive OfficerCritical Start · published July 22, 2026 · Tier A
  10. [10]Critical Start Delivers SOC AI: A Production-Proven Agentic Architecture Built for Auditable, Human-Validated MDRBusiness Wire · published June 2, 2026 · Tier A
  11. [11]Critical Start expands MDR capabilities with multi-agent AI systemHelp Net Security · published June 3, 2026 · Tier B
  12. [12]CORR Platform: See Everything. Question Nothing. | Critical StartCritical Start · undated page, accessed November 5, 2026 · Tier A

SentinelOne full record

  1. [1]sentinelone.comSentinelOne · sentinelone.com · undated page, accessed November 5, 2026 · Tier A
  2. [2]CompanySentinelOne · sentinelone.com · undated page, accessed November 5, 2026 · Tier A
  3. [3]SentinelOne | AI-Powered Enterprise Cybersecurity PlatformSentinelOne · undated page, accessed November 10, 2026 · Tier A
  4. [4]Singularity™ Endpoint Security Platform | SentinelOneSentinelOne · undated page, accessed November 10, 2026 · Tier A
  5. [5]Wayfinder Incident Readiness & Response Services | SentinelOneSentinelOne · undated page, accessed November 10, 2026 · Tier A
  6. [6]LABScon24 Replay | Let Them Eat Cake: “Secure by Upgrade” Software is a National Security Threat | SentinelOneSentinelOne · published December 18, 2024 · Tier A
  7. [7]SentinelOne to Add Anthropic's Claude Mythos 5.1 to Wayfinder Frontier AI ServicesSentinelOne · published October 29, 2026 · Tier A
  8. [8]SentinelOne Appoints Sonalee Parekh as Chief Financial OfficerSentinelOne · published March 3, 2026 · Tier A
  9. [9]SentinelOne Singularity Cloud Security Reviews 2026G2 · undated page, accessed November 10, 2026 · Tier C

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