Horizon3
Horizon3 funding: the Series E round announced on 3 August 2026, from the company’s own announcement.
- Amount
- $250 million
- Round
- Series E
- Announced
- Valuation (as stated)
- more than $2 billion
- Led by
- NightDragon, NEA (co-leads)
- Category
- Cybersecurity
Horizon3 announced a $250 million Series E on 3 August 2026, led by NightDragon, NEA (co-leads). Stated valuation: more than $2 billion.
Horizon3’s NodeZero platform autonomously and safely attacks an organization’s own production environment to find and verify fixes for exploitable weaknesses.
Questions
How much did Horizon3 raise?
$250 million in a Series E, announced on 3 August 2026.
Who led Horizon3’s round?
NightDragon, NEA (co-leads).
What is Horizon3 valued at?
more than $2 billion, as announced.
What does Horizon3 do?
Horizon3’s NodeZero platform autonomously and safely attacks an organization’s own production environment to find and verify fixes for exploitable weaknesses.
See every round in the tech funding tracker, and read what a funding round does not tell you.
- Company
- Horizon3
- Amount, USD million
- 250
- Other investors
- Seven new investors and five returning backers (not all named in excerpt)
- Announcement
- horizon3.ai
- Sources
Source Link Horizon3 announcement https://horizon3.ai/news/press-release/horizon3-raises-250m-series-e-at-2b-valuation-to-lead-the-ai-vs-ai-cybersecurity-era/