Aperture Sectors › Cybersecurity AI › AI & agent security
AI & agent security funding
AI & agent security
A sub-sector of Cybersecurity AI. Each company counts once, in its main sub-sector.
81 rounds, $1.9B raised by 60 companies, Jan 2, 2023 to Nov 14, 2026, 8% of Cybersecurity AI capital. Top three companies: Zenity 9%, HiddenLayer 8%, Onyx Security 8%.
| Company | HQ | Capital raised | Rounds | Exit |
|---|---|---|---|---|
| Zenity | Israel | $163M | 2 | — |
| HiddenLayer | United States | $150M | 2 | — |
| Onyx Security | Israel | $148M | 2 | — |
| Noma Security | Israel | $125M | 2 | — |
| Ent | United States | $100M | 1 | — |
| Protect AI | United States | $95M | 2 | Acquired |
| WitnessAI | United States | $86M | 2 | — |
| Obsidian Security | United States | $85M | 1 | — |
| Irregular | Israel | $80M | 1 | — |
| Neo Security | United States | $75M | 1 | — |
| Harmonic Security | United States | $68M | 2 | — |
| Straiker | United States | $64M | 1 | — |
| AIR | — | $50M | 1 | — |
| Pluto Security | Israel | $42M | 1 | — |
| Runlayer | United States | $41M | 2 | — |
| Mindgard | United States | $38M | 2 | — |
| Geordie AI | United Kingdom | $36M | 2 | — |
| Lasso Security | Israel | $36M | 2 | — |
| JetStream Security | United States | $34M | 1 | — |
| Virtue AI | United States | $30M | 1 | — |
| Aim Security | Israel | $28M | 2 | Acquired |
| Bold Security (and Onyx Security) | Israel | $28M | 1 | — |
| Cranium AI | United States | $25M | 2 | — |
| Prompt Security | Israel | $23M | 2 | — |
| Nudge Security | United States | $22M | 2 | — |
| Company | Amount | Stage | Announced |
|---|---|---|---|
| Zenity | $125M | Series C | Aug 3, 2026 |
| Onyx Security | $113M | Series B | Jul 29, 2026 |
| HiddenLayer | $100M | Series B | Sep 2, 2026 |
| Ent | $100M | Seed | Jun 16, 2026 |
| Noma Security | $100M | Series B | Jul 31, 2025 |
| Obsidian Security | $85M | Series D | Aug 4, 2026 |
| Irregular | $80M | Series A | Sep 17, 2025 |
| Neo Security | $75M | Series A | Jul 20, 2026 |
| Straiker | $64M | Series A | Jun 29, 2026 |
| Protect AI | $60M | Series B | Aug 1, 2024 |