Funding round

Horizon3.ai Series C
Horizon3.ai, which works in autonomous penetration testing services in Dover, raised $40M in a Series C round announced on 8 Aug 2023, led by Craft Ventures. 2 firms took part. It is Horizon3.ai's fourth venture round on record; the one before was a Series B in Nov 2021.
$40M
Amount raised
Not disclosed
Post-money valuation
2
Investors
1 lead
Valuation
What this round says about the price
Horizon3.ai did not disclose a valuation in this round; its last disclosed one was $50M at the Series A (Feb 2021). It came 21 months after Horizon3.ai's Series B. It is 9.3% of the $429M Horizon3.ai has raised in the venture rounds on record. Horizon3.ai raised again 22 months later: a Series D round of $100M in Jun 2025. Its next priced round, a Series E in Aug 2026, valued it at $2.00B.
Horizon3.ai's funding rounds
Horizon3.ai has 6 venture rounds on record. This one is highlighted.
- Seed 23 Jan 2020, led by SignalFire $3.5M
- Series A 1 Feb 2021, led by SignalFire $5.0M$50M post-money
- Series B 2 Nov 2021, led by SignalFire $30M
- Series C this round 8 Aug 2023, led by Craft Ventures $40M
- Series D 10 Jun 2025, led by New Enterprise Associates $100M
- Series E 3 Aug 2026, led by NightDragon and New Enterprise Associates $250M$2.00B post-money
Investors
Who put money in
Craft Ventures led the round with 1 other firm.
Lead investor
- Craft Ventures backs 197 venture-backed companies new investor
Also in the round
- backs 121 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, geographic expansion, sales and marketing, scaling operations, working capital, hiring and acquisitions.
- Product development
- Geographic expansion
- Sales and marketing
- Scaling operations
- Working capital
- Hiring
- Acquisitions
Comparable rounds
How it compares
218 Series C rounds in Tech Companies within a year either side disclosed an amount; the median was $48M, and this round was 84% of the median. The closest in time, other companies' Series C rounds in Tech Companies:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Tech Companies | 1 Aug 2023 | $175M | $775M | March Capital and Sanabil |
| CloudMinds Tech Companies | 31 Aug 2023 | $137M | not disclosed | not named |
| Tech Companies | 6 Aug 2023 | $75M | not disclosed | not named |
| Tech Companies | 16 Aug 2023 | $55M | not disclosed | Freeman Group |
| Tech Companies | 11 Aug 2023 | $50M | not disclosed | TPG |
| Tech Companies | 10 Aug 2023 | $35M | not disclosed | Inven Capital and Insight Partners |
| Tech Companies | 7 Aug 2023 | $30M | not disclosed | Lumos Capital Group and 360 ONE Asset (IIFL) |
| Tech Companies | 6 Sep 2023 | $100M | $500M | not named |
Sources
Where this comes from
Reported by 2 sources.
Questions
Frequently asked
How much did Horizon3.ai raise in its Series C round?
Horizon3.ai raised $40M in its Series C round, announced in Aug 2023.
Who led Horizon3.ai's Series C round?
Craft Ventures led it, with SignalFire.
What was Horizon3.ai's valuation at the Series C round?
It was not disclosed; its last disclosed one was $50M at the Series A (Feb 2021).
How does it compare with other Series C rounds in Tech Companies?
218 Series C rounds in Tech Companies within a year either side disclosed an amount; the median was $48M, and this round was 84% of the median.
Did Horizon3.ai raise again after this round?
Yes: a Series D round in Jun 2025 of $100M.