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Horizon3.ai Tech Stack

Autonomous pentesting platform powered by AI to validate security posture

Computer and Network Security San Francisco, CA 201–500 employees Founded 2019 Privately Held

Horizon3.ai builds an AI-driven security validation platform (NodeZero) that autonomously tests organizational defenses against exploitable attack paths. The stack reveals a sales-heavy, data-centric engineering operation: Salesforce + revenue tools dominate, while the backend (Python, Rust, Go, PostgreSQL, Neo4j) handles graph-based attack-path analysis and the data pipeline (Snowflake, Redshift, Databricks, dbt, Airflow) powers continuous testing results. Active hiring is heavily skewed toward sales (38 roles) with light engineering (7), signaling a go-to-market phase focused on channel partnerships and mid-market expansion rather than platform breadth.

Tech Stack 57 technologies

Core StackSalesforce GraphQL Figma Rust Python AWS ZoomInfo Slack CrowdStrike SentinelOne Go Salesloft Redshift Snowflake Databricks BigQuery dbt Apache Airflow Dagster Fivetran Airbyte Pardot PostgreSQL Neo4j LinkedIn Sales Navigator Seamless.ai Outreach Microsoft Defender Carbon Black Burp Suite+27 more

What Horizon3.ai Is Building

Challenges

  • False positives alert fatigue
  • Long lead time hiring consultants
  • Ineffective security tools
  • Cybersecurity skills shortage
  • Blind spots
  • Checkbox security
  • Scaling commercial segment
  • Inefficient marketing tech stack
  • Manual workflow bottlenecks
  • Data accuracy inconsistencies

Active Projects

  • Build high-performing northeast region
  • Improving sales development process
  • Develop comprehensive mid-enterprise sales strategy
  • Compliance-driven executive dinners
  • Channel first go-to-market strategy
  • Developing team-wide best practices
  • Technical onboarding of nodezero
  • Multi-tenant management capabilities
  • Autonomous pentesting solutions
  • New product categories

Hiring Activity

Accelerating70 roles · 55 in 30d

Department

Sales
38
Engineering
7
Marketing
7
Support
5
Security
4
Product
3
HR
2
Legal
1

Seniority

Senior
29
Mid
14
Director
8
Manager
8
Junior
5
Staff
2
Principal
1
VP
1

Notable leadership hires: Director Engineering, Director Systems Operations

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About Horizon3.ai

Horizon3.ai delivers continuous autonomous pentesting, framed as an alternative to manual security assessments and checkbox compliance. The platform answers whether an organization can withstand compromise by running production-safe offensive tests at scale, identifying exploitable paths, and verifying remediation. The company serves Fortune 100s, federal agencies (NSA, CISA), and healthcare providers across security operations and governance teams. With 201–500 employees, headquarters in San Francisco, and hiring across eight countries (US, Canada, Australia, Singapore, Netherlands, France, Germany, Peru), Horizon3.ai operates as a distributed, sales-driven organization pursuing enterprise and mid-market segments.

HeadquartersSan Francisco, CA
Company Size201–500 employees
Founded2019
Hiring MarketsSingapore, United States, Canada, Australia, Netherlands, Peru, France, Germany

Frequently Asked Questions

What is NodeZero and what does it do?

NodeZero is Horizon3.ai's autonomous pentesting engine that safely tests organizational defenses, identifies exploitable attack paths, and verifies security fixes without human intervention. It has completed over 225,000 production tests.

What tech stack does Horizon3.ai use?

Backend: Python, Rust, Go, PostgreSQL, Neo4j. Data: Snowflake, Redshift, Databricks, dbt, Apache Airflow, Dagster, Fivetran, Airbyte, BigQuery. Sales: Salesforce, Outreach, Salesloft, LinkedIn Sales Navigator, ZoomSeam, Pardot. Security tools: CrowdStrike, SentinelOne, Microsoft Defender, Carbon Black.

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How this profile is built

Horizon3.ai's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.