Horizon3.ai Closes $100M Funding Round
Horizon3.ai, a San Francisco-based cybersecurity startup, is in the process of raising $100 million in a new funding round led by New Enterprise Associates (NEA). According to a recent SEC filing, the company has already secured at least $73 million of this amount. This funding round is expected to value Horizon3.ai at over $750 million .nextunicorn.ventures
Pioneering Proactive Cybersecurity
Founded in 2019 by Snehal Antani, a former CTO at Splunk and U.S. military cyber operations leader, Horizon3.ai specializes in autonomous penetration testing. Their platform simulates real-world cyberattacks to identify vulnerabilities before malicious actors can exploit them. This proactive approach is increasingly vital as AI-driven cyber threats become more sophisticated .MSSP Alert
Rapid Growth and Federal Recognition
The company has demonstrated impressive growth, reporting a 101% year-over-year revenue increase and surpassing 150% of its Q4 sales pipeline targets. With an annual recurring revenue of approximately $30 million, Horizon3.ai has also achieved FedRAMP authorization, allowing it to offer services to U.S. federal agencies .nextunicorn.ventures
Strategic Investment for Expansion
This latest funding round follows a $40 million Series C in August 2023, led by Craft Ventures with participation from SignalFire. The new capital will support Horizon3.ai‘s efforts to expand its research and development, enhance its engineering team, and broaden its market reach .FoundersToday

What Horizon3.ai Does
Horizon3.ai helps organizations identify and fix security vulnerabilities before attackers can exploit them. Their flagship product, NodeZero, is an autonomous penetration testing platform. NodeZero continuously assesses an organization’s security posture, identifying weaknesses and providing actionable insights to improve defenses.
The Significance of the Funding
The $100 million funding round signifies strong investor confidence in Horizon3.ai‘s approach to cybersecurity. The company plans to use the funds to accelerate product development, expand its team, and increase its market presence.
Why Proactive Security Matters
In an era of ever-increasing cyber threats, organizations need to move beyond reactive security measures. Proactive security solutions, like those offered by Horizon3.ai, enable businesses to:
- Identify vulnerabilities before attackers do
- Prioritize remediation efforts based on real-world risk
- Continuously improve their security posture