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Horizon3.ai

Horizon3.ai develops NodeZero which provides an autonomous penetration testing solution that helps customers find and fi
Horizon3.ai develops NodeZero which provides an autonomous penetration testing solution that helps customers find and fix attack vectors.
Network Management Software 📍 Dover, DE Founded 2019
Current Valuation
$660M
as of 2026-Q1
PRIVATE

QL Price

$2.4B
+18% vs last round
QuantLogix's current estimate for Horizon3.ai, published 2026-09-27 — above the last disclosed round of $2.0B (2026-08).
Confidence
medium
Basis
secondary led
What backs this price
Last disclosed round $2.0B 2026-08 weight 0.9
Secondary market print $2.9B 2026-06-27 weight 0.58
How this price has held up
No round has priced for Horizon3.ai since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-09-27 and will be graded against the next priced round. See the full accuracy record →
How to actually get exposure to Horizon3.ai →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, Horizon3.ai, 2026-09-27 (e6272f7910aa2caa). The id pins this exact claim, so a citation stays checkable after the price moves. Model estimate for research — not a quote, target price, or investment advice.

IPO Outlookprivate

Is Horizon3.ai going public?
No. Horizon3.ai is private and has not filed to go public. There is no S-1 on file.
What is Horizon3.ai's valuation in 2026?
Horizon3.ai is valued at $660M as of 2026-Q1, set by its Series D ($100M, Jan 2026). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Horizon3.ai filed an S-1?
No public S-1 is on file for Horizon3.ai.
How much has Horizon3.ai raised?
Horizon3.ai has raised $183.5M in total, most recently a Series D of $100M in Jan 2026.
Is Horizon3.ai publicly traded — can you buy Horizon3.ai stock?
No. Horizon3.ai is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Horizon3.ai on its Pre-IPO Access Desk.
How to actually get exposure to Horizon3.ai →
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.

Company Profile

Founded
2019
HQ
Dover, DE
Employees
387
Total Raised
$183.5M
Last Round
Series D — $100M (Jan 2026)
IPO Status
private

Fundraising Status

Series D · $100M · 8 mo ago
privateTotal raised $183.5M

Secondary Market

Implied price / share
$7
Last round price / share
$4.78
vs last round
+46.4%
Last round price vs secondary price
Last round vs current secondary price per share$4.78Last round$7.00Current
Secondary price return by period
Secondary market period returns3-month-1.7%6-month+2.5%1-year+40.0%All-time+40.0%
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →

Latest Funding Round

RoundAmountDateLead InvestorPost-Money
Series D$100MJan 2026—$660M

Talent Signal

Hiring trend
▲ Hiring uptrend
+40% vs 2026-08
Open roles
119
via ashby
Product-build share
25%
engineering, research, product, design
Trajectory
expanding
balanced build + GTM — 25% builders vs 75% go-to-market/G&A — scaling both sides.
No tracked executive churn; open roles trending up.
Open roles by month
Open roles by month85Aug '26119Sep '26
Open roles by function
Open roles by functionSales & GTM63Engineering19Other8Marketing7Ops & People5Legal & Policy4Security4Product3Finance & Strategy2
■ product-building   ■ go-to-market / G&A
Senior Back End EngineerStaff Product DesignerStaff Attack Engineer, AI/LLMManager, Security Engineering, Cloud & AppSecStaff Attack Engineer, OCIWebApp Offensive Security Software Engineer
Counted from Horizon3.ai's live job board as of 2026-09-16; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Enterprise SoftwareCyber SecurityNetwork SecurityMachine LearningArtificial Intelligence
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-Q1. Refreshed quarterly.