Funding round
Arena AI Series A
Arena AI, a tech company in London, raised $150M in a Series A round announced on 1 Jan 2026, led by Felicis and UC Investments, at a $1.70B post-money valuation. 8 firms took part. It is Arena AI's second venture round on record; the one before was a Seed in May 2025.
$150M
Amount raised
$1.70B
Post-money valuation
$1.55B pre-money
8
Investors
2 leads
2.8x
Step-up from the Seed
$600M in May 2025
8.8%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Arena AI at $1.70B after the new money, 2.8 times the $600M of its Seed (May 2025). The $150M bought investors about 8.8% of the company. It came 8 months after Arena AI's Seed. It is 33% of the $450M Arena AI has raised in the venture rounds on record. Arena AI raised again 9 months later: a Series B round of $200M in Oct 2026, at $3.10B post-money.
Arena AI's funding rounds
Arena AI has 3 venture rounds on record. This one is highlighted.
Investors
Who put money in
Felicis and UC Investments led the round with 6 other firms.
Lead investors
- Felicis backs 237 venture-backed companies new investor
- UC Investments new investor
Also in the round
- Andreessen Horowitz backs 722 venture-backed companies new investor
- backs 36 venture-backed companies new investor
- LDVP new investor
- Kleiner Perkins backs 285 venture-backed companies new investor
- Lightspeed Venture Partners backs 454 venture-backed companies new investor
- Laude Ventures new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to hiring, product development, scaling operations and working capital.
- Hiring
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
1,213 Series A rounds in Tech Companies within a year either side disclosed an amount; the median was $15M, and this round was 10 times the median. The closest in time, other companies' Series A rounds in Tech Companies:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Tech Companies | 21 Jan 2026 | $200M | $1.00B | Tiger Global and Premji Invest |
| Tech Companies | 22 Jan 2026 | $63M | not disclosed | Growth Equity at Goldman Sachs Alternatives |
| Tech Companies | 8 Jan 2026 | $54M | not disclosed | Friends & Family Capital |
| Tech Companies | 14 Jan 2026 | $40M | not disclosed | Accel |
| Tech Companies | 5 Jan 2026 | $35M | not disclosed | Abico Group |
| Tech Companies | 27 Jan 2026 | $35M | $185M | Notable Capital |
| Tech Companies | 22 Jan 2026 | $31M | not disclosed | Northern Gritstone |
| Tech Companies | 15 Jan 2026 | $30M | not disclosed | Arcadia Gaming Partners and Andreessen Horowitz |
Sources
Where this comes from
Reported by 8 sources.
Questions
Frequently asked
How much did Arena AI raise in its Series A round?
Arena AI raised $150M in its Series A round, announced in Jan 2026.
Who led Arena AI's Series A round?
Felicis and UC Investments led it, with Andreessen Horowitz, The House Fund, LDVP, Kleiner Perkins and Lightspeed Venture Partners and 1 more.
What was Arena AI's valuation at the Series A round?
$1.70B post-money ($1.55B pre-money).
How does it compare with other Series A rounds in Tech Companies?
1,213 Series A rounds in Tech Companies within a year either side disclosed an amount; the median was $15M, and this round was 10 times the median.
Did Arena AI raise again after this round?
Yes: a Series B round in Oct 2026 of $200M at $3.10B post-money.