CISO Tribune

Vendor comparison · 2 companies

Horizon3.ai vs SafeBreach

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. SafeBreach sells the SafeBreach Exposure Validation Platform, which combines the SafeBreach Validate breach and attack simulation product with the attack path validation capabilities of SafeBreach Propagate. 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.

Change the companies

Up to four companies side by side.

  • Horizon3.ai
  • SafeBreach
Horizon3.ai vs SafeBreach: 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.aiSafeBreachSafeBreach sells the SafeBreach Exposure Validation Platform, which combines the SafeBreach Validate breach and attack simulation product with the attack path validation capabilities of SafeBreach Propagate.safebreach.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.
  • SafeBreach Validate[9]A breach and attack simulation product that tests deployed security controls against real-world threats.
  • SafeBreach PropagateAttack path validation capabilities that assess the impact and blast radius of a successful breach.
  • SafeBreach CTEM PlatformA CTEM platform designed to move organizations from reactive security to a closed-loop risk management program.
  • SafeBreach Helm[1]The AI infrastructure layer of the SafeBreach CTEM Platform.
Categories
Headquarters
San Francisco, United States[1][11]Sunnyvale, United States[3]
Founded
2019[1][11]2014[2]
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: listed, seen November 4, 2026[4]
  • 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.From its own pages, SafeBreach sells mainly to enterprise security teams that want to test deployed security controls. Its customer examples include a law firm, a healthcare organization, and a drug and device development company. SafeBreach says its CTEM Platform is designed to work with an existing security stack, including vulnerability management, threat intelligence, SOAR, and ticketing tools. SafeBreach says its customers face the challenge of extending security beyond the enterprise network to support a remote workforce.
Last verified
September 27, 2026November 2, 2026

Where they overlap

  • Breach simulation and automated pen-testing is the primary category of both Horizon3.ai and SafeBreach.
  • Both are headquartered in the United States.

Where they differ, field by field

  • Horizon3.ai lists NodeZero and Endpoint Security Effectiveness. SafeBreach lists SafeBreach Validate, SafeBreach Propagate, SafeBreach CTEM Platform and SafeBreach Helm.
  • Horizon3.ai is headquartered in San Francisco, United States. SafeBreach is headquartered in Sunnyvale, United States.
  • Horizon3.ai was founded in 2019. SafeBreach was founded in 2014.
  • Horizon3.ai is privately held.

How they differ

CISO Tribune files both Horizon3.ai and SafeBreach under Breach simulation and automated pen-testing, as their primary category. Horizon3.ai sells NodeZero, a platform that executes real attack techniques in production environments, delivered via multi-tenant SaaS. Horizon3.ai also sells Endpoint Security Effectiveness, which labels each action mapped to a MITRE ATT&CK TTP as blocked or permitted, and pentesting for compliance delivered by OSCP pentesters with NodeZero. SafeBreach sells SafeBreach Validate, a breach and attack simulation product, and SafeBreach Propagate, which provides attack path validation. SafeBreach also sells a CTEM Platform, which uses SafeBreach Helm and three AI agents. SafeBreach says its simulations are executed only against SafeBreach simulators and never use real production data.

Both companies map results to MITRE ATT&CK, though they do so in different ways: Horizon3.ai tags executed techniques, while SafeBreach maps simulation results. Horizon3.ai is headquartered in San Francisco, United States, was founded in 2019, and is privately held. SafeBreach is headquartered in Sunnyvale, United States, and was founded in 2014.

Horizon3.ai names banks, healthcare systems, energy providers, manufacturers, governments and defense contractors as organizations that rely on NodeZero. SafeBreach's customer examples include the Husch Blackwell law firm, a Fortune 500 healthcare organization, and a Fortune 500 drug and device development company. On November 5, 2026, Horizon3.ai appointed regional sales and marketing leads for Australia, New Zealand, Asia Pacific and Japan. On July 29, 2026, Horizon3.ai announced an expansion of NodeZero to include AI-powered web application pentesting capabilities. On July 15, 2026, Horizon3.ai announced it is taking part in Anthropic's Project Glasswing.

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: SafeBreach

What SafeBreach Validate does[9]
SafeBreach Validate is a breach and attack simulation (BAS) product. SafeBreach says its breach and attack simulation tool helps enterprise security teams test the ability of deployed security controls to detect, prevent, and mitigate real-world attacks. SafeBreach says the BAS tool helps validate custom detections and incident response processes at scale.
What SafeBreach Propagate does
SafeBreach Propagate provides attack path validation capabilities. SafeBreach describes a CART tool designed to assess the potential impact and blast radius of a successful breach. SafeBreach says the CART tool helps uncover high-risk paths to critical organizational assets and crown jewels.
What SafeBreach CTEM Platform does
The SafeBreach Continuous Threat Exposure Management (CTEM) Platform is designed to help organizations move from reactive security to a proactive, closed-loop risk management program. The SafeBreach CTEM Platform uses SafeBreach Helm and three AI agents to operationalize the five-phased CTEM framework. SafeBreach says the SafeBreach CTEM Platform includes integrations with vulnerability management platforms, external attack surface management solutions, threat intelligence feeds, SOAR platforms, and ticketing and workflow management tools.
What SafeBreach Helm does[1]
SafeBreach Helm is the AI infrastructure layer of the SafeBreach CTEM Platform. Helm orchestrates three purpose-built AI agents, the Analyst Agent, Validation Agent, and SecOps Agent, through a single natural-language interface to operationalize the full CTEM lifecycle. Helm moves organizations from siloed security activities toward a closed-loop CTEM program that continuously identifies, prioritizes, and remediates cyber risk at scale.

Questions about Horizon3.ai and SafeBreach

What do Horizon3.ai and SafeBreach sell?
Horizon3.ai sells NodeZero and Endpoint Security Effectiveness. SafeBreach sells SafeBreach Validate, SafeBreach Propagate, SafeBreach CTEM Platform and SafeBreach Helm.
Are Horizon3.ai and SafeBreach in the same category?
Yes. Breach simulation and automated pen-testing is the primary category of both on CISO Tribune.
Where are Horizon3.ai and SafeBreach headquartered?
Horizon3.ai is headquartered in San Francisco, United States. SafeBreach is headquartered in Sunnyvale, United States.
When were Horizon3.ai and SafeBreach founded?
Horizon3.ai was founded in 2019. SafeBreach was founded in 2014.
Who owns Horizon3.ai and SafeBreach?
Horizon3.ai is privately held.
Who are Horizon3.ai and SafeBreach sold to?
From its own pages, Horizon3.ai sells mainly to security teams that want to test their defenses with real attacks in production. From its own pages, SafeBreach sells mainly to enterprise security teams that want to test deployed security controls.
What have Horizon3.ai and SafeBreach 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

SafeBreach full record

  1. [1]safebreach.comSafeBreach · safebreach.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Safebreach closes 53 5 million series d new funding to fuel momentumSafeBreach · safebreach.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Contact usSafeBreach · safebreach.com · undated page, accessed September 27, 2026 · Tier A
  4. [4]SafeBreach Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 28, 2026 · Tier C
  5. [5]SafeBreach | Exposure Validation PlatformSafeBreach · undated page, accessed November 4, 2026 · Tier A
  6. [6]SafeBreach Validate | Breach & Attack SimulationSafeBreach · undated page, accessed November 4, 2026 · Tier A
  7. [7]Exposure Validation with Enterprise Chops | SafeBreachSafeBreach · undated page, accessed November 4, 2026 · Tier A
  8. [8]The AI-Powered CTEM Solution | SafeBreachSafeBreach · undated page, accessed November 4, 2026 · Tier A
  9. [9]Security Control Validation | SafeBreachSafeBreach · undated page, accessed November 4, 2026 · Tier A
  10. [10]Use MITRE ATT&CKTM for Stronger Security - SafeBreachSafeBreach · undated page, accessed November 4, 2026 · Tier A
  11. [11]Remote Workforce Security Validation Service by SafeBreach (Prospect) - SafeBreachSafeBreach · undated page, accessed November 4, 2026 · Tier A
  12. [12]HiBob Vulnerability - Exposing Customer Data | SafeBreachSafeBreach · undated page, accessed November 4, 2026 · Tier A

Spot a factual error? Request a correction.