Horizon3.ai: Funding, Investors & Team (Oct 2026)
Horizon3.ai is a cybersecurity company specializing in autonomous penetration testing and vulnerability management. Its flagship platform, NodeZero™, enables organizations to continuously assess their attack surfaces by simulating real-world attack scenarios. NodeZero identifies exploitable vulnerabilities, misconfigurations, and weak credentials across on-premises, cloud, and hybrid environments, providing actionable insights for remediation. The platform operates without the need for persistent or credentialed agents, allowing safe deployment in production environments. It offers features such as NodeZero Kubernetes Pentesting for containerized workloads, NodeZero Tripwires™ for early threat detection, and NodeZero Insights for comprehensive risk analysis. Horizon3.ai collaborates with partners like Tech Mahindra and FedHIVE to extend its services to global enterprises and government agencies, supporting compliance with standards like FedRAMP High.
Horizon3.ai has raised $377M across 6 funding rounds on record, the most recent a Series E of $250M announced in Aug 2026.
That round is above the $6.0M median round size for Artificial Intelligence companies tracked on FundedIQ over the last two years.
Horizon3.ai Company Profile and Key Stats
Latest funding round on record: Aug 2026.
Horizon3.ai Funding Rounds
1 of 6 rounds was announced without a disclosed amount and is excluded from the total.
Horizon3.ai raised $5.0M in a Series A announced in Feb 2021.
4 months later, an undisclosed round of $8.5M was announced in Jun 2021.
2.2 years later, a Series C of $40.0M was announced in Aug 2023.
1.8 years later, an undisclosed round of $73.0M was announced in May 2025.
8 months later, an undisclosed round was announced in Jan 2026 with no disclosed amount.
7 months later, a Series E of $250M was announced in Aug 2026.
Horizon3.ai Investors
15 investors are recorded in total; the 5 named above are those the record identifies.
Horizon3.ai Founders and Leadership Team
Contact details for the Horizon3.ai team: 2 of 2 have an email address on file, 1 has a LinkedIn profile.
Start 14-day free trial →Horizon3.ai Funding Compared to Other Artificial Intelligence Startups
Horizon3.ai's latest round of $250M is above the median round in Artificial Intelligence. Medians cover the last 24 months of disclosed rounds.
Funded Startups Like Horizon3.ai in Artificial Intelligence and San Francisco
Companies Similar to Horizon3.ai
Biotia is a health tech company spun out of Cornell Tech leveraging next-generation sequencing and artificial…
The hardest unsolved problem in robotics isn't perception or locomotion, it's dexterity. Tangent Robotics…
Autopoiesis Sciences creates advanced AI models that aim to enable groundbreaking scientific advancements…
The EnCharge AI platform provides a reliable computing solution that enables the utilization of highly…
EliseAI offers AI-powered automation and conversational services tailored for housing and healthcare…
Reco is an innovative security software company that offers a platform to assist organizations in monitoring…
General Intuition is a frontier research lab focused on teaching machines to learn and adapt through play.
Dodge AI is an enterprise automation platform that specializes in ERP maintenance.
ARTDAI is the leader in unbiased, data-driven research and information on fine art transactions worldwide.…
SiMa.ai is a company that specializes in developing machine learning technology for embedded edge systems,…
Modulate’s voice skins will be available through select platforms via Modulate’s real-time software…
Quartermaster AI is a defense technology company that develops real-time distributed marine software via AI…
Horizon3.ai Funding FAQs
What does Horizon3.ai do?
Horizon3.ai is a cybersecurity company specializing in autonomous penetration testing and vulnerability management. Its flagship platform, NodeZero™, enables organizations to continuously assess their attack surfaces by simulating real-world attack scenarios. NodeZero identifies exploitable vulnerabilities, misconfigurations, and weak credentials across on-premises, cloud, and hybrid environments, providing actionable insights for remediation. The platform operates without the need for persistent or credentialed agents, allowing safe deployment in production environments. It offers features such as NodeZero Kubernetes Pentesting for containerized workloads, NodeZero Tripwires™ for early threat detection, and NodeZero Insights for comprehensive risk analysis. Horizon3.ai collaborates with partners like Tech Mahindra and FedHIVE to extend its services to global enterprises and government agencies, supporting compliance with standards like FedRAMP High.
How much funding has Horizon3.ai raised?
Horizon3.ai has raised $377M across 6 rounds on record. The most recent is a Series E of $250M announced in Aug 2026.
When did Horizon3.ai last raise funding?
Horizon3.ai's most recent funding round on record is a Series E of $250M, announced in Aug 2026.
Who has invested in Horizon3.ai?
Investors on record for Horizon3.ai include Craft Ventures, New Enterprise Associates, Sapphire Ventures, SignalFire, PSG Equity. FundedIQ records 15 investors in total.
Who founded Horizon3.ai?
FundedIQ lists Anthony Pillitiere (Founder) at Horizon3.ai.
Who is the CEO of Horizon3.ai?
Snehal Antani is listed as CEO at Horizon3.ai.
Where is Horizon3.ai headquartered?
Horizon3.ai is based in San Francisco, California, United States.
How many employees does Horizon3.ai have?
Horizon3.ai is in the 101-250 employee band.
When was Horizon3.ai founded?
Horizon3.ai was founded in 2019.
How does Horizon3.ai's funding compare to other Artificial Intelligence startups?
Horizon3.ai's latest round of $250M is above the $6.0M median round size for Artificial Intelligence companies on FundedIQ across 7,239 tracked companies over the last two years.
About FundedIQ's Horizon3.ai Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Horizon3.ai is left off this page rather than filled in.
Know who just raised. Then know who to reach.
Startup funding intelligence on every funded startup: the round, the investors and the founders, as a file in your inbox or searchable in the app.
Radar from $49/mo · Pro from $149/mo. Card required, nothing charged until day 15, and we email you 3 days before that. Need something specific? Custom plans from $499/mo.