Funding round
AI21 Series D
AI21, which works in enterprise AI system development in Tel Aviv, raised $300M in a Series D round announced on 10 May 2025. 2 firms took part. It is AI21's fifth venture round on record; the one before was a Series C in Nov 2023.
$300M
Amount raised
Not disclosed
Post-money valuation
2
Investors
no lead named
Valuation
What this round says about the price
AI21 did not disclose a valuation in this round; its last disclosed one was $1.40B at the Series C (Nov 2023). It came 18 months after AI21's Series C. It is 49% of the $607M AI21 has raised in the venture rounds on record. No later venture round is on record for AI21.
Investors
Who put money in
2 firms took part; no lead investor was named.
Investors
- Google LLC new investor
- Nvidia Corp. new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development and scaling operations.
- Product development
- Scaling operations
Comparable rounds
How it compares
6 Series D rounds in Software Development Services within a year either side disclosed an amount; the median was $95M, and this round was 3.2 times the median. The closest in time, other companies' Series D rounds in Software Development Services:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Snorkel AI Software Development Services | 29 May 2025 | $100M | $1.30B | Addition |
| Software Development Services | 26 Jun 2025 | $60M | not disclosed | Align Private Capital |
| Baseten Software Development Services | 5 Sep 2025 | $150M | $2.15B | BOND |
| Software Development Services | 15 Dec 2025 | $86M | $750M | Georgian and Hedosophia |
| Decagon Software Development Services | 27 Jan 2026 | $250M | $4.50B | Coatue and Index Ventures |
| Software Development Services | 17 Sep 2024 | $90M | not disclosed | not named |
Sources
Where this comes from
Reported by 2 sources.
Questions
Frequently asked
How much did AI21 raise in its Series D round?
AI21 raised $300M in its Series D round, announced in May 2025.
Which investors took part in AI21's Series D round?
Google LLC and Nvidia Corp..
What was AI21's valuation at the Series D round?
It was not disclosed; its last disclosed one was $1.40B at the Series C (Nov 2023).
How does it compare with other Series D rounds in Software Development Services?
6 Series D rounds in Software Development Services within a year either side disclosed an amount; the median was $95M, and this round was 3.2 times the median.