Company record · security vendor
Horizon3.ai
What the company sells
Horizon3.ai sells NodeZero, a system that autonomously tests an organization's defenses by attempting attacks, then prioritizes exploitable attack paths and verifies that fixes worked. The company is headquartered in San Francisco and was founded in 2019. It is privately held, having raised a Series E funding round in August 2026.
- Headquarters
- San Francisco, United States
- Founded
- 2019
- Ownership
- Privately held
- Website
- horizon3.ai
Products and services
NodeZero
An autonomous system that tests an organization's defenses by attempting attacks at machine speed, then prioritizes exploitable attack paths and verifies fixes.
Sources
- Horizon3.aiUndated page, accessed September 27, 2026 · Tier A: the company, a regulator or a filing
- Horizon3.aiPublished August 3, 2026 · Tier A: the company, a regulator or a filing
Recorded September 27, 2026 from the sources above. Descriptions are in our own words; we do not rank or recommend vendors, and no vendor pays to be listed or to change what we write. Disclosure: until the publisher confirms it has no business relationship with this company, treat one as possible (how the network works). Spot a factual error? Request a correction.
Security leadership
CISO Tribune has not yet recorded who holds the top security seat at Horizon3.ai. We add a seat only from a verified source; if you have one, send it to the desk.