Funding round
Together AI Series B
Together AI, which works in AI cloud infrastructure services in San Francisco, raised $305M in a Series B round announced on 20 Feb 2025, led by General Catalyst and Prosperity7 Ventures, at a $3.30B post-money valuation. 17 firms took part. It is Together AI's fourth venture round on record; the one before was a Growth in Mar 2024.
$305M
Amount raised
$3.30B
Post-money valuation
17
Investors
2 leads
2.6x
Step-up from the Growth
$1.25B in Mar 2024
9.2%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Together AI at $3.30B after the new money, 2.6 times the $1.25B of its Growth (Mar 2024). The $305M bought investors about 9.2% of the company. It came 11 months after Together AI's Growth. It is 23% of the $1.33B Together AI has raised in the venture rounds on record. Together AI raised again 17 months later: a Series C round of $800M in Jul 2026, at $8.30B post-money.
Together AI's funding rounds
Together AI has 5 venture rounds on record. This one is highlighted.
- Seed 15 May 2023, led by Lux Capital $20M
- Series A 29 Nov 2023, led by Kleiner Perkins $102M
- Growth 13 Mar 2024, led by Salesforce Ventures $106M$1.25B post-money
- Series B this round 20 Feb 2025, led by General Catalyst and Prosperity7 Ventures $305M$3.30B post-money
- Series C 1 Jul 2026, led by Aramco Ventures $800M$8.30B post-money
Investors
Who put money in
General Catalyst and Prosperity7 Ventures led the round with 15 other firms.
Lead investors
- General Catalyst backs 574 venture-backed companies new investor
- backs 48 venture-backed companies new investor
Also in the round
- Salesforce Ventures backs 314 venture-backed companies new investor
- DAMAC Capital new investor
- NVIDIA new investor
- Kleiner Perkins backs 285 venture-backed companies new investor
- March Capital new investor
- backs 96 venture-backed companies new investor
- Lux Capital backs 194 venture-backed companies new investor
- backs 44 venture-backed companies new investor
- Greycroft backs 236 venture-backed companies new investor
- Coatue backs 229 venture-backed companies new investor
- Definition new investor
- backs 26 venture-backed companies new investor
- backs 70 venture-backed companies new investor
- backs 6 venture-backed companies new investor
- SK Telecom new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to scaling operations.
- Scaling operations
Comparable rounds
How it compares
675 Series B rounds in Tech Companies within a year either side disclosed an amount; the median was $31M, and this round was 9.8 times the median. The closest in time, other companies' Series B rounds in Tech Companies:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Tech Companies | 4 Feb 2025 | $235M | $2.50B | Ontario Teachers’ Pension Plan |
| Tech Companies | 17 Feb 2025 | $100M | $1.10B | Bain Capital Ventures |
| Tech Companies | 19 Feb 2025 | $65M | $500M | Quadrille Capital |
| Tech Companies | 12 Feb 2025 | $54M | not disclosed | Vertex Growth and Trident Growth Partners |
| Tech Companies | 27 Feb 2025 | $54M | not disclosed | Balderton Capital |
| Tech Companies | 18 Feb 2025 | $50M | not disclosed | Ribbit |
| Tech Companies | 12 Feb 2025 | $49M | not disclosed | Notable Capital and Andreessen Horowitz |
| Tech Companies | 11 Feb 2025 | $45M | not disclosed | Valor |
Sources
Where this comes from
Reported by 5 sources.
Questions
Frequently asked
How much did Together AI raise in its Series B round?
Together AI raised $305M in its Series B round, announced in Feb 2025.
Who led Together AI's Series B round?
General Catalyst and Prosperity7 Ventures led it, with Salesforce Ventures, DAMAC Capital, NVIDIA, Kleiner Perkins and March Capital and 10 more.
What was Together AI's valuation at the Series B round?
$3.30B post-money.
How does it compare with other Series B rounds in Tech Companies?
675 Series B rounds in Tech Companies within a year either side disclosed an amount; the median was $31M, and this round was 9.8 times the median.
Did Together AI raise again after this round?
Yes: a Series C round in Jul 2026 of $800M at $8.30B post-money.