Aperture AI funding rounds by month › September 2025
AI funding rounds in September 2025
Aperture Tracker recorded 627 AI funding rounds announced in September 2025, with $30.4B in disclosed capital raised (478 rounds with a disclosed amount). As of Nov 15, 2026.
Counted by announcement date. Rounds found later for this month are added to it, so these figures can change.
- Rounds announced
- 627
- Disclosed capital raised
- $30.4B across 478 rounds with a disclosed amount
- Median disclosed round
- $7M
- Largest company's share of disclosed capital
- 42.8%
- Top three companies' share of disclosed capital
- 53.0%
- AI classification
- 524 AI-native, 103 AI-enabled
| Measure | September 2025 | August 2025 | Change |
|---|---|---|---|
| Rounds announced | 627 | 269 | +358 |
| Disclosed capital raised | $30.4B | $7.5B | +$22.9B |
| Rounds with a disclosed amount | 478 | 218 | +260 |
| Company | Stage | Amount | Region | Sector | Lead | Announced | Source |
|---|---|---|---|---|---|---|---|
| Anthropic | Series F+ | $13B | North America | AI Models & Research | ICONIQ, Fidelity Management & Research Company, Lightspeed Venture Par… | Sep 2, 2025 | source |
| Mistral AI | Series C | $2B | Europe | AI Models & Research | ASML | Sep 9, 2025 | source |
| Nscale | Series B | $1.1B | Europe | AI Infrastructure | Aker | Sep 25, 2025 | source |
| Cerebras Systems | Series F+ | $1.1B | North America | AI Hardware & Chips | Fidelity Management & Research Company, Atreides Management (co-led) | Sep 30, 2025 | source |
| Figure AI | Series C | $1B+ | North America | Robotics & Physical AI | Parkway Venture Capital | Sep 16, 2025 | source |
| Groq | Stage not stated | $750M | North America | AI Infrastructure | Disruptive | Sep 17, 2025 | source |
| Quantinuum | Stage not stated | ~$600M | North America | AI Hardware & Chips | — | Sep 4, 2025 | source |
| Cognition | Stage not stated | $400M+ | North America | AI Developer Tools | Founders Fund | Sep 8, 2025 | source |
| Sierra | Stage not stated | $350M | North America | AI Agents | Greenoaks Capital | Sep 5, 2025 | source |
| Periodic Labs | Seed | $300M | North America | Industry AI | Andreessen Horowitz, Felicis (co-led) | Sep 30, 2025 | source |
| Region | Rounds | With amount | Disclosed capital raised |
|---|---|---|---|
| North America | 300 | 256 | $24B |
| Europe | 126 | 109 | $4.3B |
| Israel | 20 | 18 | $564M |
| China | 64 | 16 | $493M |
| India | 30 | 25 | $115M |
| SEA | 5 | 3 | $64M |
| Japan & South Korea | 26 | 13 | $393M |
| Rest of World | 50 | 34 | $463M |
| Stage | Rounds | With amount | Disclosed capital raised |
|---|---|---|---|
| Pre-Seed | 31 | 24 | $59M |
| Seed | 324 | 249 | $1.8B |
| Pre-A | 20 | 7 | $37M |
| Series A | 141 | 108 | $2.6B |
| Series B | 58 | 47 | $3.3B |
| Series C | 13 | 11 | $4.1B |
| Stage not stated | 28 | 20 | $2.9B |
| Series D | 4 | 4 | $620M |
| Series F+ | 3 | 3 | $14.4B |
| Growth | 3 | 3 | $233M |
| Series E | 2 | 2 | $315M |
| Sector | Rounds | With amount | Disclosed capital raised |
|---|---|---|---|
| Enterprise & Vertical AI | 173 | 138 | $1.9B |
| Healthcare & Life Sciences | 76 | 59 | $1.4B |
| Robotics & Physical AI | 71 | 31 | $1.4B |
| Fintech AI | 69 | 56 | $735M |
| Industry AI | 47 | 37 | $1.1B |
| Consumer & Media AI | 40 | 28 | $439M |
| AI Agents | 35 | 33 | $1.1B |
| Cybersecurity AI | 28 | 26 | $434M |
| AI Developer Tools | 25 | 23 | $980M |
| AI Infrastructure | 21 | 14 | $2.7B |
| AI Hardware & Chips | 17 | 14 | $2.6B |
| Defense & Public Safety AI | 14 | 12 | $41M |
| AI Models & Research | 11 | 7 | $15.5B |
The full list of 627 rounds for September 2025 is in the round log. Rounds announced more than 90 days ago open with a free email sign-in.
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Definitions are in the methodology. Report a missing or misreported deal from the link in the footer.