Arbolus Intelligence

Horizon3.ai

horizon3.ai · San Jose, United States of America

Horizon3.ai is a cybersecurity company that provides autonomous penetration testing and attack surface management software to help organizations identify and remediate security vulnerabilities before they are exploited. Its flagship NodeZero platform continuously tests networks, applications, and cloud environments from an attacker’s perspective, delivering prioritized findings and remediation guidance. The company sells primarily to enterprises, government agencies, and service providers on a subscription basis.

  • Cybersecurity Services
  • Application & Code Security
  • Security Operations (SIEM/SOAR)
Listed in
Revenue
$35.0M
Employees
230
Founded
2019
Headquarters
San Jose, United States of America

What 38 Arbolus experts think of Horizon3.ai

NPS is consistently high, with a majority of scores between 8–10, indicating very strong advocacy. Renewal intent aligns with spend: most high spenders (>=$100K) plan to renew, while non-renewals relate to pricing or specific support needs. Stickiness is high for those with long-term implementations (>1 year), with a minority piloting or offboarding. Qualitative feedback highlights agentless deployment, actionable proof of exploit, and continuous validation as differentiators, though coverage and price are pain points for a minority.Overall Customer Sentiment: Positive

Who reviewed Horizon3.ai

Total customers 38 36 current · 2 former
Reviews growth +19 in six months
Seniority of respondents
  • C-Suite 68% (26)
  • Director 18% (7)
  • Manager 13% (5)
Engineering Leader Manager NPS 6 Submitted Jul 2026
Engineering Leader C-Suite NPS 9 Submitted Mar 2026
Legal Partner C-Suite NPS 6 Submitted Mar 2026

Employer names and spend open in the full report, along with the other 35 customers.

Everything 38 customers told us about Horizon3.ai.

Employer names, spend, renewal intent and every written answer behind the numbers on this page.

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Sentiment

36 Net Promoter Score, from 38 scored reviews
  • Promoters 18
  • Passives 16
  • Detractors 4

Cumulative NPS by month

+0 over 6 months
  • Apr 8
  • May 8
  • Jun 8
  • Jul 8
  • Aug 8
  • Sep 8

Net Promoter Score across 1 reviews, accumulated up to each month. Category median 36 across 1 companies.

Praised

  • Enhanced Integration
  • Deeper Cloud-Native and Application Layer Coverage
  • AI-Driven Remediation and Context
  • Proof-Based Attack Path Validation

Criticised

  • Competitors Closing Feature Gaps
  • Hyperscaler Platform Integration
  • Pricing and Switching Costs
  • Coverage Gaps for Application Layer

What customers say

Proof-Based Attack Path Validation
“I can quickly demonstrate risk reduction because findings come with real exploit proof, not just theoretical CVEs.”
Continuous, On-Demand Testing
“I use the tool to run unlimited, real-world penetration tests at any time, giving us assurance as our attack surface changes.”
Agentless, Safe Deployment
“We didn't need to deploy agents on endpoints, which avoided change management hassles and kept our operations team supportive.”

Renewal intent

Plan to renew 67%
  • Will renew 16
  • Undecided 6
  • Not renewing 2

Plan to renew, by seniority

  • C-Suite 67% 15 answers
  • Director 67% 6 answers
  • Manager 67% 3 answers
  • 8.6/10 Average score from customers who will renew
  • 7.3/10 Average score from undecided customers
  • 9/10 Average score from customers not renewing

Report

Customer Report - Oct 2026 Oct 2026 38 + 1

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