Horizon3 Raises $250M Series E at $2B+ Valuation to Lead the “AI vs. AI” Cybersecurity Era
The company said its NodeZero platform has run 310,000 production tests with zero disruptions as enterprises seek more frequent vulnerability scanning.
- Cybersecurity startup Horizon3 raised $250 million in a Series E round, reaching a $2 billion valuation with backing from returning investors NightDragon and NEA.
- Founders Snehal Antani and Anthony Pelletier established Horizon3 after serving at the Joint Special Operations Command, creating AI Hackers to automate penetration testing.
- Matt Hartley, chief revenue officer, noted the NodeZero platform tests live systems continuously without disruption. Clients now demand monthly or weekly scans instead of sampling 5% of infrastructure annually.
- Strategic investors including EDBI, SAIC, and Qualcomm joined the funding round. Grand View Research projects the cybersecurity market will reach $663.2 billion by 2033.
- With the funding, Horizon3 is expanding internationally, opening offices in Amsterdam, Australia, and Singapore while building on $100 million in annual recurring revenue achieved last year.
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Horizon3 hits $2bn for AI that hacks your own network
A company whose product is an AI that hacks your network has just tripled in value. It did so in the same week that AI hacking stopped being hypothetical. Horizon3 has raised a $250m Series E at a valuation above $2bn, up from $650m a year ago. The timing is the story. Days earlier, OpenAI […] This story continues at The Next Web
The accelerating threat from artificial intelligence is driving companies to seek advanced security solutions, and Horizon3 is leading the way. Horizon3 achieves a $2 billion valuation with a $250 million Series E funding round. The cybersecurity startup Horizon3 successfully raised $250 million in a Series E funding round, more than tripling its valuation in 14 months. The San Francisco-based company received backing from returning investors su…
Horizon3 raises $250M Series E, valuation tops $2 billion
San Francisco-based cybersecurity company Horizon3 announced a $250 million Series E funding round on August 3, 2026, that values the company at more than $2 billion, according to the company's announcement. The round was co-led by NightDragon and NEA, both existing investors, and triples the $650 million valuation Horizon3 held after its Series D round in June 2025. The Series E was oversubscribed and drew participation from seven new investors…
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Horizon3 raises $250M at $2B+ valuation as AI cyberattacks fuel cybersecurity demand - Tech Startups
Horizon3 has raised $250 million in fresh funding at a valuation of more than $2 billion, more than tripling what the cybersecurity company was worth just over a year ago as businesses race to defend their networks against a new […] The post Horizon3 raises $250M at $2B+ valuation as AI cyberattacks fuel cybersecurity demand first appeared on Tech Startups.
Cybersecurity firm Horizon3 crosses $2 billion valuation in new funding round
Aug 3 (Reuters) - Cybersecurity company Horizon3 said on Monday it has raised $250 million in its latest funding round, more than tripling its valuation to over $2 billion in just about a year. The round comes amid growing demand for cybersecurity to...
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