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US AI Agents startup funding
US AI Agents startups raised $8.9B across 179 funding rounds at 163 companies in the 12 months to Nov 14, 2026, against $4.3B across 179 rounds in the 12 months before (+109% in capital, 0% in rounds).
Companies headquartered in the United States, all funding stages, by announcement date. Data as of Nov 15, 2026; the last 12 months run Nov 15, 2025 – Nov 14, 2026. Capital counts disclosed amounts only (170 of 179 rounds in the last 12 months).
How much did US AI Agents startups raise in the last 12 months?
| Last 12 months | 12 months before | Change | |
|---|---|---|---|
| Capital raised (disclosed) | $8.9B | $4.3B | +109% |
| Rounds | 179 | 179 | 0% |
| Companies funded | 163 | 167 | -2% |
How much have US AI Agents startups raised in 2026?
In 2026 through Nov 14, 2026, US AI Agents startups raised $8.2B across 158 rounds, against $4B across 167 rounds in the same period of 2025.
Which US AI Agents startups raised the most?
Instinct raised the most in the last 12 months, 14% of the capital; the three largest companies together took 34%.
| Company | City | Capital raised | Rounds | Latest round |
|---|---|---|---|---|
| Instinct | — | $1.2B | 2 | Series C · Sep 2026 |
| Sierra | San Francisco | $950M | 1 | Stage not stated · May 2026 |
| Temporal Technologies | Bellevue | $850M | 2 | Series E · Sep 2026 |
| Genspark | Palo Alto | $375M | 3 | Series B · Jun 2026 |
| Exa | San Francisco | $250M | 1 | Series C · May 2026 |
| Decagon | San Francisco | $250M | 1 | Series D · Jan 2026 |
| Serval | San Francisco | $225M | 2 | Series C · Oct 2026 |
| Resolve.ai | San Francisco | $165M | 2 | Series A · Apr 2026 |
| Town | San Francisco | $163M | 2 | Series B · Oct 2026 |
| HappyRobot | San Francisco | $150M | 1 | Series C · Aug 2026 |
Which AI Agents sub-sectors are growing in the US?
Sales, marketing & GTM added the most companies: 29 raised in the 12 months before and 34 in the last 12 months.
| Sub-sector | Companies funded (year before → last 12 months) | Rounds | Capital raised |
|---|---|---|---|
| Sales, marketing & GTM | 29 → 34 | 36 | $966M |
| Agent platforms & builders | 23 → 24 | 25 | $1B |
| Agent infrastructure | 21 → 23 | 25 | $1.6B |
| Personal & computer-use assistants | 14 → 16 | 20 | $2.1B |
| Customer service & contact center | 23 → 14 | 15 | $1.6B |
| Finance & back office | 14 → 14 | 16 | $338M |
| IT, security & operations | 17 → 12 | 15 | $732M |
| Research & knowledge work | 8 → 11 | 12 | $196M |
| HR & recruiting | 6 → 5 | 5 | $172M |
| Data & analytics | 8 → 5 | 5 | $147M |
| Industry-specific agents | 2 → 2 | 2 | $10M |
3 companies are not yet tagged with a sub-sector (Other / unclear).
How large is a typical US AI Agents round?
In the last 12 months, the median disclosed Seed round was $6M, Series A round was $25M, Series B round was $60M.
| Stage | Rounds | With a disclosed amount | Median disclosed round |
|---|---|---|---|
| Pre-Seed | 13 | 12 | $1.9M |
| Seed | 74 | 68 | $6M |
| Pre-A | 2 | 2 | — |
| Series A | 42 | 42 | $25M |
| Series B | 29 | 27 | $60M |
| Series C | 9 | 9 | — |
| Series D | 4 | 4 | — |
| Series E | 2 | 2 | — |
| Growth | 1 | 1 | — |
| Stage not stated | 3 | 3 | — |
Medians are shown where at least 10 amounts are disclosed.
US AI Agents funding by quarter
| Quarter | Rounds | Capital raised |
|---|---|---|
| 2025 Q1 | 29 | $693M |
| 2025 Q2 | 55 | $1B |
| 2025 Q3 | 52 | $1.4B |
| 2025 Q4 | 52 | $1.6B |
| 2026 Q1 | 50 | $1.5B |
| 2026 Q2 | 42 | $2.9B |
| 2026 Q3 | 43 | $2.8B |
| 2026 Q4 (to date) | 23 | $949M |
Other US sectors: AI Models & Research · AI Infrastructure · Robotics & Physical AI · Industry AI · Defense & Public Safety AI · AI Hardware & Chips · Healthcare & Life Sciences · Fintech AI · Enterprise & Vertical AI · AI Developer Tools · Cybersecurity AI · Consumer & Media AI.
Definitions are in the methodology. Report a missing or misreported deal from the link in the footer.