AI security startup
Appears in 1 story
Series B funded, July 2026
Horizon3.ai crossed a $2 billion valuation August 3 with a $250 million Series E, the first AI security company to reach that mark. The oversubscribed round, co-led by NightDragon and NEA, extended a run of large-check deals that began with Exaforce's $125 million Series B in May.
Updated 6 days ago
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