Horizon3.ai · Aug 2026
Horizon3 announced a $20 million commitment to channel leadership, enablement, alliances, transaction infrastructure, and partner go-to-market programs. It reported that about 90% of business flows through partners.
Public company, workplace, funding, and market signals
Updated Aug 16, 2026
Horizon3.ai is a cybersecurity company that develops autonomous offensive-security technology. Its NodeZero platform continuously and safely simulates real-world attacks, identifies exploitable attack paths, verifies remediation, and helps organizations demonstrate cyber resilience.
Primary product
NodeZero Proactive Security Platform: autonomous penetration testing and security validation across networks, cloud, Kubernetes, Active Directory, endpoints, web applications, and related attack surfaces.
Founded
2019
Headquarters
San Francisco, California, United States
Team size
300-400
Work style
Hybrid
Industry
Cybersecurity
Sub-industry
Offensive security, autonomous penetration testing, exposure management, and security validation
Offices
Business model
Stage
Series E
Total raised
$428.5M
Latest round
Series E · Aug 2026
Latest amount
$250M
Aug 2026 · NightDragon and New Enterprise Associates
Jun 2025 · New Enterprise Associates
Aug 2023 · Craft Ventures
Oct 2021 · SignalFire
Jun 2021
Jan 2020
Leadership
Co-Founder and Chief Executive Officer
Co-Founder
Ilya Kirnos
Co-Founder and Director; executive title not publicly confirmed
Chief People Officer
Vice President of Engineering
Vice President, Revenue Operations
Andres Botero
Chief Marketing Officer
Gareth Cox
Vice President of Sales, APJ
Public recruiting language emphasizes “learn-it-alls,” mission-driven cybersecurity work, rapid growth, collaboration with offensive-security practitioners, and a channel- and customer-focused operating model. Available employee-review signals are strongly positive, but they should be treated as directional rather than independently audited.
Work style
Hybrid
Compensation
Public evidence indicates favorable employee ratings for compensation, but no reliable company-wide salary bands or equity details were identified. Individual job postings may disclose role- and location-specific compensation.
Benefits
Pricing
Quote-based enterprise SaaS; public materials describe NodeZero as a self-service SaaS product, but no public list pricing was found. Partners can package NodeZero with remediation, incident response, vCISO, threat-hunting, and advisory services.
Differentiators
Technology
Customers
Competitors
Estimated revenue
$30M-$40M annual revenue estimate; separate company-indexed data reported approximately $35.5M annual revenue. The company has publicly emphasized ARR rather than audited revenue.
Estimated monthly visits
123.6K
Traffic estimate as of Jun 2026
Horizon3.ai · Aug 2026
Horizon3 announced a $20 million commitment to channel leadership, enablement, alliances, transaction infrastructure, and partner go-to-market programs. It reported that about 90% of business flows through partners.
TechCrunch · Aug 2026
Horizon3 announced a $250 million Series E at a valuation above $2 billion. TechCrunch reported approximately 7,200-7,300 customers, roughly $100 million in ARR in the prior year, international expansion, and backing from returning investors NightDragon and NEA.
Horizon3.ai · Aug 2026
The company’s primary announcement says the round was co-led by NightDragon and NEA, with seven new investors and five returning backers. It cites more than 7,000 customer organizations, 120% year-over-year ARR growth, and more than 310,000 production-safe autonomous tests.
Horizon3.ai · Jun 2026
Horizon3 announced Amsterdam as its EMEA headquarters and reported 283% EMEA team growth over the prior 12 months, with additional hiring planned.
Horizon3.ai · Mar 2026
Horizon3 reported 102% year-over-year ARR growth for FY2026, more than 5,200 organizations using NodeZero, 125% net dollar retention, 94% gross dollar retention, and 32% of Q4 bookings originating through channel partners.
118 jobs at Horizon3.ai