Horizon3.ai

Horizon3.ai develops NodeZero, an autonomous penetration-testing platform that safely attacks production environments to reveal weaknesses that can actually be exploited. It maps attack paths across infrastructure, identity, cloud, and web applications, then helps teams prioritize remediation and confirm that fixes removed the risk.

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Funding Round
Funding Amount
Post-Money Valuation
Share Price
Series E3 Aug, 2026
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Series D22 May, 2025
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Series C8 Aug, 2023
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Series B29 Oct, 2021
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Series A2 Feb, 2021
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Seed24 Jan, 2020
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Horizon3.ai
Aug 3, 2026 •Show on chart

Horizon3 hits $2 billion valuation with $250M Series E as AI threats escalate

Matt Hartley, the company’s chief revenue officer, said that its NodeZero platform has two core strengths ...

https://techcrunch.com/2026/08/03/horizon3-hits-2-billion-valuation-with-250m-series-e-as-ai-threats-escalate/

Investors2

Craft VenturesCraft Ventures
Sapphire VenturesSapphire Ventures