CISO Tribune

Vendor comparison · 2 companies

Critical Start vs Guardz

Critical Start sells managed detection and response (MDR) that combines AI-powered triage with human-led investigation. Guardz sells an MSP-ready security platform that brings identity, endpoint, email, data, awareness, and exposure protection together. 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
  • Guardz
Critical Start vs Guardz: Products, Customers and Funding Compared
Critical StartCritical Start sells managed detection and response (MDR) that combines AI-powered triage with human-led investigation.criticalstart.comGuardzGuardz sells an MSP-ready security platform that brings identity, endpoint, email, data, awareness, and exposure protection together.guardz.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.
  • Email Security[2][8]An API-based and AI-native engine to prevent credential theft, ransomware, and impersonation threats.
  • Security Awareness Training[2][4][10]Pre-scheduled security awareness training that alters behavior.
  • Phishing Simulation[14]AI-generated phishing attacks tailored by tone, industry, and language.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[4][5][6][7][8][9][10][11][12][13]
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]
  • November 2, 2026Guardz added browser protection from Palo Alto Networks' Prisma Browser for Business to its security platform for managed service providers serving small businesses.[17]
  • March 3, 2026Guardz announced a strategic partnership with FoxPointe Solutions, a cybersecurity advisory firm focused on governance, risk management and virtual CISO services.[18]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 3, 2026[13]
  • 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, Guardz sells mainly to MSPs, and describes its platform as built for them. Guardz says small businesses find it difficult to keep up with their external posture. Guardz says MSPs can use a prospecting tool to attract new clients by showing the extent of SMEs' exposure. Guardz says even non-security experts can respond to cyber events. Guardz says it gives clients visibility and control with configurable admin roles.
Last verified
September 27, 2026September 30, 2026

Where they overlap

  • MDR and managed SOC is the primary category of both Critical Start and Guardz.

Where they differ, field by field

  • Guardz is also filed under Identity threat detection and response, EDR and XDR and Email security.
  • Critical Start lists CORR Platform, Managed Detection and Response, Service Credits, Vulnerability Management Services and MobileSOC. Guardz lists Email Security, Security Awareness Training and Phishing Simulation.
  • Guardz is privately held.

How they differ

CISO Tribune files both Critical Start and Guardz under MDR and managed SOC as the primary category. Critical Start sells Managed Detection and Response that combines AI-powered triage with human-led investigation, backed by a contractual SLA on response times. Its CORR Platform connects to a security stack through native APIs, with no proprietary agents. Critical Start also sells Vulnerability Management Services, MobileSOC, and Service Credits that come with every managed service contract.

Guardz sells an MSP-ready security platform that brings identity, endpoint, email, data, awareness, and exposure protection together. CISO Tribune also files Guardz under identity threat detection and response, EDR and XDR, and email security. Its offerings include Email Security powered by Check Point Harmony, Security Awareness Training, and Phishing Simulation. Guardz offers AI-native EDR with SentinelOne embedded. The overlap is in managed detection and response, while Guardz adds email, awareness training and phishing simulation to its platform.

Critical Start says it protects financial services firms, healthcare systems, manufacturers and utilities, and its compliance reporting covers frameworks such as PCI DSS, HIPAA and NERC CIP. Guardz sells mainly to MSPs and builds its platform for them. Guardz is privately held. On July 22, 2026, Critical Start announced a new Chief Executive Officer, and on June 3, 2026 it released SOC AI, a multi-agent framework behind its AI-led managed detection and response service. On November 2, 2026, Guardz added browser protection from Palo Alto Networks' Prisma Browser for Business, and on March 3, 2026 it announced a partnership with FoxPointe Solutions.

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: Guardz

What Email Security does[2][8]
Guardz email protection uses an API-based and AI-native engine to prevent credential theft, ransomware, and impersonation threats. Check Point Harmony powers Guardz Email Security.
What Security Awareness Training does[2][4][10]
Guardz helps teams plan, launch and track automated training campaigns. Campaign frequency can be set monthly, bi-monthly, or quarterly.
What Phishing Simulation does[14]
Simulations can be generated in English, French, German, Hebrew, Spanish, Portuguese, Dutch, Italian. Failed simulations trigger an awareness issue.

Questions about Critical Start and Guardz

What do Critical Start and Guardz sell?
Critical Start sells CORR Platform, Managed Detection and Response, Service Credits, Vulnerability Management Services and MobileSOC. Guardz sells Email Security, Security Awareness Training and Phishing Simulation.
Are Critical Start and Guardz in the same category?
Yes. MDR and managed SOC is the primary category of both on CISO Tribune.
Who owns Critical Start and Guardz?
Guardz is privately held.
Who are Critical Start and Guardz 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, Guardz sells mainly to MSPs, and describes its platform as built for them.
What have Critical Start and Guardz announced recently?
July 22, 2026: Critical Start announced the appointment of Francine Geist as Chief Executive Officer, effective immediately. November 2, 2026: Guardz added browser protection from Palo Alto Networks' Prisma Browser for Business to its security platform for managed service providers serving small businesses.

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

Guardz full record

  1. [1]guardz.comGuardz · guardz.com · undated page, accessed September 30, 2026 · Tier A
  2. [2]Msp business plan the ultimate blueprint for growthGuardz · guardz.com · published June 12, 2026 · Tier A
  3. [3]About usGuardz · guardz.com · undated page, accessed September 30, 2026 · Tier A
  4. [4]AI-Native Security Platform Built for MSPs by GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  5. [5]Guardz: Unified Cybersecurity Platform Built for MSPGuardz · undated page, accessed October 31, 2026 · Tier A
  6. [6]AI-Native Security Platform Built for MSPs by GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  7. [7]AI-Native Security Platform Built for MSPs by GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  8. [8]AI-Native Security Platform Built for MSPs by GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  9. [9]AI-Native Security Platform Built for MSPs by GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  10. [10]Security Awareness Training for MSPs and EmployeesGuardz · undated page, accessed October 31, 2026 · Tier A
  11. [11]All-In-One Cloud App Security Solution | GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  12. [12]Protect Your Business from External Cyber Threats | GuardzGuardz · undated page, accessed October 31, 2026 · Tier A
  13. [13]Guardz Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 31, 2026 · Tier C
  14. [14]Adaptive Phishing Simulation Platform for MSP SecurityGuardz · undated page, accessed November 3, 2026 · Tier A
  15. [15]AI-Native Security Platform Built for MSPs by GuardzGuardz · undated page, accessed November 3, 2026 · Tier A
  16. [16]Cyber Risk Prospecting report - Thank-you | Guardz.comGuardz · undated page, accessed November 3, 2026 · Tier A
  17. [17]Exclusive: Guardz brings Palo Alto Networks browser protection to MSPs serving small businessesSiliconANGLE · published November 2, 2026 · Tier B
  18. [18]Guardz Partners with Foxpointe Solutions to Deliver Strategic, Scalable Cybersecurity for MSPs and Their ClientsGuardz · published March 3, 2026 · Tier A

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