Horizon3.ai secures new funding to enhance AI-powered security operations

Horizon3.ai has recently announced that it is in the process of securing $100 million in funding, with a substantial $73 million already raised based on a recent SEC filing as reported by TechCrunch. This funding round is being led by NEA, a key player in the cybersecurity investment landscape this year. With this new investment, Horizon3.ai is poised to reach an impressive valuation of $750 million, indicating significant progress in the realm of threat detection and offensive security solutions.

The company, headquartered in San Francisco, has made a name for itself with its innovative autonomous penetration testing platform. This platform is specifically crafted to replicate real-world cyber attack scenarios, aiding organizations in identifying vulnerabilities before malicious actors have a chance to exploit them. Established in 2019, Horizon3.ai brings a wealth of security expertise to the table, leveraging cutting-edge automation to provide proactive defense mechanisms that cater to the escalating concerns surrounding AI-driven cyber threats.

The latest funding round serves as a follow-up to Horizon3.ai’s prior Series C funding round of $40 million in 2023. This earlier investment was primarily directed towards expanding the company’s research capabilities, bolstering its engineering talent pool, and enhancing its partner networks. Subsequent to this round, the company achieved the prestigious FedRAMP authorization, paving the way for lucrative federal contracts. Additionally, Horizon3.ai reported a remarkable triple-digit increase in year-on-year revenue in early 2025, culminating in an impressive $30 million in annual recurring revenue.

NEA’s decision to invest in Horizon3.ai follows closely on the heels of its recent financial backing of Veza, marking its second cybersecurity investment in a short span of time. This growing interest in companies offering autonomous security solutions heightened with AI capabilities underscores investors’ confidence in the sector, particularly in businesses that can extend their offerings across both commercial and governmental spheres. The upward trajectory of Horizon3.ai reflects a noticeable shift towards offensive security as a crucial element in contemporary cyber defense strategies.

As the cybersecurity landscape continues to evolve and threats become more sophisticated, the importance of constantly innovating and staying ahead of potential risks cannot be overstated. Companies like Horizon3.ai are at the forefront of developing advanced security solutions that address the evolving challenges posed by AI-powered cyber threats. With the infusion of fresh capital, Horizon3.ai is well-positioned to expand its reach, enhance its technological capabilities, and solidify its standing as a key player in the cybersecurity industry.