CISO Tribune

Vendor comparison · 2 companies

Horizon3.ai vs Proficio

Horizon3.ai sells NodeZero, a platform that autonomously executes real attack techniques in production environments so organizations can find exploitable weaknesses, fix them and verify the fixes. Proficio sells managed detection and response (MDR) services. CISO Tribune files both under Breach simulation and automated pen-testing. 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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  • Horizon3.ai
  • Proficio
Horizon3.ai vs Proficio: Products, Customers and Funding Compared
Horizon3.aiHorizon3.ai sells NodeZero, a platform that autonomously executes real attack techniques in production environments so organizations can find exploitable weaknesses, fix them and verify the fixes.horizon3.aiProficioProficio sells managed detection and response (MDR) services.proficio.com
What it sells
  • NodeZero[2][3][5][6][7][8][9][10][14]An autonomous platform that executes real attack techniques in production.
  • Endpoint Security Effectiveness[3][7]Tests how endpoint protections respond to real attack behavior.
  • ProSOC MDR[1][4][6][7][8][9][14]24/7 monitoring and SOC-as-a-Service powered by the Proficio-hosted SIEM.
  • ProSOC MDR for Microsoft[1][9]Managed detection and response integrated with Microsoft Sentinel SIEM.
  • Active Defense Response[1][4][6]Response-as-a-service that uses SOAR capabilities to automate threat responses.
  • Cyber Exposure Monitoring[4][7]Continuous external threat monitoring for exposed data and Dark Web leaks.
  • Risk Based Vulnerability Management[1]Identifies and prioritizes vulnerabilities and offers a risk score.
Categories
Headquarters
San Francisco, United States[1][11]Not stated on its pages
Founded
2019[1][11]2010[2][3]
Ownership and funding
Privately held[2][3]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • November 5, 2026Horizon3 appointed Chris Wood as Director of Sales for Australia and New Zealand and Vivienne Horsfall as Growth Marketing Director for Asia Pacific and Japan.[13]
  • July 29, 2026Horizon3 announced an expansion of its NodeZero platform to include AI-powered web application pentesting capabilities.[14]
  • July 15, 2026Horizon3 announced it is taking part in Anthropic's Project Glasswing, an initiative focused on securing critical infrastructure.[12]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • 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, Horizon3.ai sells mainly to security teams that want to test their defenses with real attacks in production. It names banks, healthcare systems, energy providers, manufacturers, governments and defense contractors as organizations that rely on NodeZero. Its pages describe customers ranging from the Global 100 to a local hospital.Not written yet
Last verified
September 27, 2026November 6, 2026

Where they overlap

  • Horizon3.ai and Proficio are both filed under Breach simulation and automated pen-testing.

Where they differ, field by field

  • Horizon3.ai's primary category is Breach simulation and automated pen-testing; Proficio's is MDR and managed SOC.
  • Proficio is also filed under SIEM and Vulnerability management.
  • Horizon3.ai lists NodeZero and Endpoint Security Effectiveness. Proficio lists ProSOC MDR, ProSOC MDR for Microsoft, Active Defense Response, Cyber Exposure Monitoring and Risk Based Vulnerability Management.
  • Horizon3.ai is headquartered in San Francisco, United States.
  • Horizon3.ai was founded in 2019. Proficio was founded in 2010.
  • Horizon3.ai is privately held.

What it sells: Horizon3.ai

What NodeZero does[2][3][5][6][7][8][9][10][14]
NodeZero is described as an autonomous platform capable of executing self-directed actions to achieve an objective. Horizon3.ai says it executes real attack techniques without agents or disruption. It is delivered via multi-tenant SaaS.
What Endpoint Security Effectiveness does[3][7]
NodeZero checks for EDR presence on each host. It then executes techniques ranging from credential theft to privilege escalation and lateral movement. Every action is mapped to a MITRE ATT&CK TTP and labeled blocked or permitted.

What it sells: Proficio

What ProSOC MDR does[1][4][6][7][8][9][14]
ProSOC MDR offers continuous security monitoring, advanced threat detection, automated response-as-a-service, risk-based vulnerability management and Dark Web monitoring. The Proficio-hosted SIEM generates security alerts based on Proficio Content from client security logs and events. Proficio forwards valid threats or risks to the client with summarized guided remediation.
What ProSOC MDR for Microsoft does[1][9]
ProSOC MDR for Microsoft Sentinel offers 24/7 monitoring, automated threat response and managed SIEM services. ProSOC MDR provides expert configuration, access to 300+ threat detection use cases and the Threat Intelligence Profiler for Microsoft Sentinel deployment.
What Active Defense Response does[1][4][6]
Active Defense for Endpoint isolates devices from the network, blocks malicious processes and removes artifacts. Proficio offers the option of automating the response to high priority threats by adding Active Defense Response to a ProSOC MDR service.
What Risk Based Vulnerability Management does[1]
Proficio Risk-Based Vulnerability Management identifies vulnerabilities, prioritizes them for resolution and offers a risk score benchmarked against similar companies in the healthcare industry. Proficio Risk-Based Vulnerability Management helps fulfill PCI requirements by identifying vulnerabilities and applying patches based on risk ranking. ProSOC MDR with Risk-based Vulnerability Management prioritizes vulnerabilities based on exploit risk in hospitality, asset criticality and known activity.

Questions about Horizon3.ai and Proficio

What do Horizon3.ai and Proficio sell?
Horizon3.ai sells NodeZero and Endpoint Security Effectiveness. Proficio sells ProSOC MDR, ProSOC MDR for Microsoft, Active Defense Response, Cyber Exposure Monitoring and Risk Based Vulnerability Management.
Are Horizon3.ai and Proficio in the same category?
They share Breach simulation and automated pen-testing. Horizon3.ai's primary category is Breach simulation and automated pen-testing and Proficio's is MDR and managed SOC.
Where are Horizon3.ai and Proficio headquartered?
Horizon3.ai is headquartered in San Francisco, United States.
When were Horizon3.ai and Proficio founded?
Horizon3.ai was founded in 2019. Proficio was founded in 2010.
Who owns Horizon3.ai and Proficio?
Horizon3.ai is privately held.
Who are Horizon3.ai and Proficio sold to?
From its own pages, Horizon3.ai sells mainly to security teams that want to test their defenses with real attacks in production.
What have Horizon3.ai and Proficio announced recently?
November 5, 2026: Horizon3 appointed Chris Wood as Director of Sales for Australia and New Zealand and Vivienne Horsfall as Growth Marketing Director for Asia Pacific and Japan.

About Horizon3.ai

Horizon3.ai sells NodeZero, a platform that autonomously executes real attack techniques in production environments so organizations can find exploitable weaknesses, fix them and verify the fixes.

Horizon3.ai describes the problem as one of effectiveness. Its pages say that security teams do not have a tools problem, and that many siloed security tools are not designed to work together. The company says the seams between those tools are blind spots that attackers exploit. Horizon3.ai says knowing a vulnerability exists is not enough and that teams need to know whether it is actually exploitable.[5]

NodeZero is described as an autonomous platform capable of executing self-directed actions to achieve an objective. In pentesting, those objectives include becoming Domain Admin, compromising sensitive data and gaining access to critical systems. Horizon3.ai says NodeZero executes real attack techniques without agents or disruption. Horizon3.ai says its autonomous approach is delivered via multi-tenant SaaS.[5]

Horizon3.ai describes a loop of hack, fix, verify and repeat. Its pages say teams should re-test to confirm a threat is gone after a fix. The company also describes a one-click verify tool in NodeZero that starts a targeted retest.[6]

Endpoint Security Effectiveness shows how endpoint protections respond to real attack behavior, and NodeZero checks for EDR presence on each host. Horizon3.ai also sells pentesting for compliance, delivered by OSCP pentesters together with the NodeZero platform.[6][7]

The service delivers a Penetration Test Report and a Fix Action Report.[6]

Horizon3.ai says NodeZero serves customers from the Global 100 to a local hospital. Its pages also name banks, healthcare systems, energy providers, manufacturers, governments and defense contractors as organizations that rely on NodeZero.[5][9]

Horizon3.ai was founded in 2019 and is headquartered in San Francisco, CA. Snehal Antani is its Co-Founder and CEO. The company describes its team as a mix of US Special Operations, US National Security and cybersecurity industry veterans.[4][6][7][8][10]

Horizon3.ai on the record

Sources

Horizon3.ai full record

  1. [1]About usHorizon3.ai · horizon3.ai · undated page, accessed September 27, 2026 · Tier A
  2. [2]Horizon3 raises 250m series e at 2b valuation to lead the ai vs ai cybersecurity eraHorizon3.ai · horizon3.ai · published August 3, 2026 · Tier A
  3. [3]Home | Horizon3.aiHorizon3.ai · undated page, accessed October 25, 2026 · Tier A
  4. [4]Why Continuous Exposure Management Matters for Financial ServicesHorizon3.ai · undated page, accessed October 25, 2026 · Tier A
  5. [5]The Future of Security: Our Vision | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  6. [6]Compliance Solutions for Cybersecurity | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  7. [7]Endpoint Security Effectiveness | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  8. [8]Identity Security Validation | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  9. [9]Why Our Platform Wins | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  10. [10]HomeECB AI Cybersecurity Mandate | NodeZero® | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  11. [11]The Team | Horizon3Horizon3.ai · undated page, accessed November 5, 2026 · Tier A
  12. [12]Horizon3 Joins Anthropic’s Project Glasswing to Help Defend Critical Infrastructure with the Attacker’s PerspectiveHorizon3 · published July 15, 2026 · Tier A
  13. [13]Horizon3 Expands Australia and New Zealand Team, Strengthens APJ InvestmentHorizon3 · published November 5, 2026 · Tier A
  14. [14]Horizon3’s NodeZero® AI Hacker Extends Production-Safe Autonomous Pentesting to Web ApplicationsHorizon3 · published July 29, 2026 · Tier A

Proficio full record

  1. [1]proficio.comProficio · proficio.com · undated page, accessed November 6, 2026 · Tier A
  2. [2]About usProficio · proficio.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]Proficio named soc team of the yearProficio · proficio.com · published February 3, 2022 · Tier A
  4. [4]Next-Gen MDR & Agentic AI SOC Services | ProficioProficio · undated page, accessed November 10, 2026 · Tier A
  5. [5]Agentic AI SOC | Proficio – AI-Powered Managed Detection & ResponseProficio · undated page, accessed November 10, 2026 · Tier A
  6. [6]ProSOC XDR: SOC-as-a-Service powered by a fully-hosted SIEMProficio · undated page, accessed November 10, 2026 · Tier A
  7. [7]Safeguard Hospitality Data with ProSOC® MDRProficio · undated page, accessed November 10, 2026 · Tier A
  8. [8]ProSOC MDR: Proactive defense against cyber threats in the healthcare sectorProficio · undated page, accessed November 10, 2026 · Tier A
  9. [9]ProSOC® MDR for Microsoft Sentinel | 24/7 Threat Detection & ResponseProficio · undated page, accessed November 10, 2026 · Tier A
  10. [10]Resolve Endpoint Security Challenges with Proficio® ProSOC MDRProficio · undated page, accessed November 10, 2026 · Tier A
  11. [11]ProSOC MDR Services for Law Firms and Corporate Legal DepartmentsProficio · undated page, accessed November 10, 2026 · Tier A
  12. [12]ProSOC® MDR for Financial Services: Cybersecurity and Ransomware ProtectionProficio · undated page, accessed November 10, 2026 · Tier A
  13. [13]ProSOC® MDR Services: Cybersecurity for Manufacturing - Ransomware Protection & Active DefenseProficio · undated page, accessed November 10, 2026 · Tier A
  14. [14]Proficio Cybersecurity Solutions | Protecting Your Business from Cyber ThreatsProficio · undated page, accessed November 10, 2026 · Tier A
  15. [15]Strengthen Compliance Efforts with Expert MDR Services | ProficioProficio · undated page, accessed November 10, 2026 · Tier A

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