Arena AI valuation, funding and investors
Arena AI is a tech companies company based in London, United Kingdom. Founded in 2015, it has about 48 employees.
VALUATION · TODAY
$3.16B +47% after Series B
Range $2.70B – $5.35B · Grade BTODAY
+12 MO
$2.00B
$4.00B
$6.00B
$8.00B
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
Seed $100M
Series A $150M
Series B $200M
ValuationBefore first round12-month outlook: where it points, how wide it fansHover the past: the outlook shows what was predicted then
HEADCOUNT · TODAY34 employees
+0%6m growth
+0%1y growth
−23%2y growth
50
100
150
Data from Jan 2021
Predicted in 1 yr $4.65B +47% vs today
Predicted next raise $558M if a round comes
Winding-down probability 0%
- Last round
- Series B · $200M · Oct 2026
- Valuation at last round
- $3.10B
- Headcount
- 34 · flat
- Grade
- B
- Founded
- 2015
Arena AI valuation today
VCMC values Arena AI at $3.2B today, with a range of $2.7B to $5.3B and a grade of B. The valuation starts from its last funding round, a Series B round in Oct 2026.
Valuation by date (146 rows)
Each point is what the model would have shown on that date, using only what was known then; before its first round, a company is valued as a startup because it later raised.
| Date | Valuation | Range | Predicted in 1 yr | Phase | Headcount | Trend | Grade | Winding-down probability |
|---|---|---|---|---|---|---|---|---|
| 1 Jan 2015 | $3.23M | $1.18M – $8.88M | $3.39M (+5%) | before first round | – | unknown | D | 0% |
| 1 Feb 2015 | $3.25M | $1.18M – $8.92M | $3.40M (+5%) | before first round | – | unknown | D | 0% |
| 1 Mar 2015 | $3.26M | $1.19M – $8.95M | $3.41M (+5%) | before first round | – | unknown | D | 0% |
| 1 Apr 2015 | $3.27M | $1.19M – $8.99M | $3.43M (+5%) | before first round | – | unknown | D | 0% |
| 1 May 2015 | $3.28M | $1.20M – $9.02M | $3.44M (+5%) | before first round | – | unknown | D | 0% |
| 1 Jun 2015 | $3.30M | $1.20M – $9.06M | $3.45M (+5%) | before first round | – | unknown | D | 0% |
| 1 Jul 2015 | $3.31M | $1.20M – $9.09M | $3.47M (+5%) | before first round | – | unknown | D | 0% |
| 1 Aug 2015 | $3.32M | $1.21M – $9.13M | $3.56M (+7%) | before first round | – | unknown | D | 0% |
| 1 Sep 2015 | $3.34M | $1.21M – $9.16M | $3.65M (+10%) | before first round | – | unknown | D | 0% |
| 1 Oct 2015 | $3.35M | $1.22M – $9.20M | $3.75M (+12%) | before first round | – | unknown | D | 0% |
| 1 Nov 2015 | $3.36M | $1.22M – $9.24M | $3.85M (+15%) | before first round | – | unknown | D | 0% |
| 1 Dec 2015 | $3.38M | $1.23M – $9.27M | $3.95M (+17%) | before first round | – | unknown | D | 0% |
| 1 Jan 2016 | $3.39M | $1.23M – $9.31M | $4.06M (+20%) | before first round | – | unknown | D | 0% |
| 1 Feb 2016 | $3.40M | $1.24M – $9.35M | $4.17M (+23%) | before first round | – | unknown | D | 0% |
| 1 Mar 2016 | $3.41M | $1.24M – $9.38M | $4.28M (+25%) | before first round | – | unknown | D | 0% |
| 1 Apr 2016 | $3.43M | $1.25M – $9.42M | $4.39M (+28%) | before first round | – | unknown | D | 0% |
| 1 May 2016 | $3.44M | $1.25M – $9.45M | $4.51M (+31%) | before first round | – | unknown | D | 0% |
| 1 Jun 2016 | $3.46M | $1.26M – $9.49M | $4.63M (+34%) | before first round | – | unknown | D | 0% |
| 1 Jul 2016 | $3.47M | $1.26M – $9.53M | $4.75M (+37%) | before first round | – | unknown | D | 0% |
| 1 Aug 2016 | $3.56M | $1.30M – $9.78M | $4.88M (+37%) | before first round | – | unknown | D | 0% |
| 1 Sep 2016 | $3.66M | $1.33M – $10.0M | $5.01M (+37%) | before first round | – | unknown | D | 0% |
| 1 Oct 2016 | $3.75M | $1.37M – $10.3M | $5.15M (+37%) | before first round | – | unknown | D | 0% |
| 1 Nov 2016 | $3.86M | $1.40M – $10.6M | $5.29M (+37%) | before first round | – | unknown | D | 0% |
| 1 Dec 2016 | $3.96M | $1.44M – $10.9M | $5.43M (+37%) | before first round | – | unknown | D | 0% |
| 1 Jan 2017 | $4.06M | $1.48M – $11.2M | $5.57M (+37%) | before first round | – | unknown | D | 0% |
| 1 Feb 2017 | $4.17M | $1.52M – $11.5M | $5.72M (+37%) | before first round | – | unknown | D | 0% |
| 1 Mar 2017 | $4.27M | $1.56M – $11.7M | $5.86M (+37%) | before first round | – | unknown | D | 0% |
| 1 Apr 2017 | $4.39M | $1.60M – $12.1M | $6.02M (+37%) | before first round | – | unknown | D | 0% |
| 1 May 2017 | $4.51M | $1.64M – $12.4M | $6.18M (+37%) | before first round | – | unknown | D | 0% |
| 1 Jun 2017 | $4.63M | $1.68M – $12.7M | $6.34M (+37%) | before first round | – | unknown | D | 0% |
| 1 Jul 2017 | $4.75M | $1.73M – $13.0M | $6.51M (+37%) | before first round | – | unknown | D | 0% |
| 1 Aug 2017 | $4.88M | $1.78M – $13.4M | $6.69M (+37%) | before first round | – | unknown | D | 0% |
| 1 Sep 2017 | $5.01M | $1.82M – $13.8M | $6.87M (+37%) | before first round | – | unknown | D | 0% |
| 1 Oct 2017 | $5.14M | $1.87M – $14.1M | $7.05M (+37%) | before first round | – | unknown | D | 0% |
| 1 Nov 2017 | $5.28M | $1.92M – $14.5M | $7.24M (+37%) | before first round | – | unknown | D | 0% |
| 1 Dec 2017 | $5.42M | $1.97M – $14.9M | $7.43M (+37%) | before first round | – | unknown | D | 0% |
| 1 Jan 2018 | $5.57M | $2.03M – $15.3M | $7.63M (+37%) | before first round | – | unknown | D | 0% |
| 1 Feb 2018 | $5.72M | $2.08M – $15.7M | $7.84M (+37%) | before first round | – | unknown | D | 0% |
| 1 Mar 2018 | $5.86M | $2.13M – $16.1M | $8.03M (+37%) | before first round | – | unknown | D | 0% |
| 1 Apr 2018 | $6.02M | $2.19M – $16.5M | $8.25M (+37%) | before first round | – | unknown | D | 0% |
| 1 May 2018 | $6.18M | $2.25M – $17.0M | $8.47M (+37%) | before first round | – | unknown | D | 0% |
| 1 Jun 2018 | $6.34M | $2.31M – $17.4M | $8.70M (+37%) | before first round | – | unknown | D | 0% |
| 1 Jul 2018 | $6.51M | $2.37M – $17.9M | $8.93M (+37%) | before first round | – | unknown | D | 0% |
| 1 Aug 2018 | $6.69M | $2.43M – $18.4M | $9.02M (+35%) | before first round | – | unknown | D | 0% |
| 1 Sep 2018 | $6.87M | $2.50M – $18.9M | $9.10M (+32%) | before first round | – | unknown | D | 0% |
| 1 Oct 2018 | $7.05M | $2.57M – $19.4M | $9.18M (+30%) | before first round | – | unknown | D | 0% |
| 1 Nov 2018 | $7.24M | $2.64M – $19.9M | $9.27M (+28%) | before first round | – | unknown | D | 0% |
| 1 Dec 2018 | $7.43M | $2.71M – $20.4M | $9.35M (+26%) | before first round | – | unknown | D | 0% |
| 1 Jan 2019 | $7.63M | $2.78M – $21.0M | $9.43M (+24%) | before first round | – | unknown | D | 0% |
| 1 Feb 2019 | $7.84M | $2.85M – $21.5M | $9.52M (+21%) | before first round | – | unknown | D | 0% |
| 1 Mar 2019 | $8.03M | $2.92M – $22.1M | $9.60M (+19%) | before first round | – | unknown | D | 0% |
| 1 Apr 2019 | $8.25M | $3.00M – $22.7M | $9.69M (+17%) | before first round | – | unknown | D | 0% |
| 1 May 2019 | $8.47M | $3.08M – $23.3M | $9.77M (+15%) | before first round | – | unknown | D | 0% |
| 1 Jun 2019 | $8.70M | $3.17M – $23.9M | $9.86M (+13%) | before first round | – | unknown | D | 0% |
| 1 Jul 2019 | $8.93M | $3.25M – $24.5M | $9.95M (+11%) | before first round | – | unknown | D | 0% |
| 1 Aug 2019 | $9.02M | $3.28M – $24.8M | $10.0M (+11%) | before first round | – | unknown | D | 0% |
| 1 Sep 2019 | $9.10M | $3.31M – $25.0M | $10.1M (+11%) | before first round | – | unknown | D | 0% |
| 1 Oct 2019 | $9.18M | $3.34M – $25.2M | $10.2M (+11%) | before first round | – | unknown | D | 0% |
| 1 Nov 2019 | $9.27M | $3.37M – $25.5M | $10.3M (+11%) | before first round | – | unknown | D | 0% |
| 1 Dec 2019 | $9.35M | $3.40M – $25.7M | $10.4M (+11%) | before first round | – | unknown | D | 0% |
| 1 Jan 2020 | $9.43M | $3.43M – $25.9M | $10.5M (+11%) | before first round | – | unknown | D | 0% |
| 1 Feb 2020 | $9.52M | $3.47M – $26.2M | $10.6M (+11%) | before first round | – | unknown | D | 0% |
| 1 Mar 2020 | $9.60M | $3.50M – $26.4M | $10.7M (+11%) | before first round | – | unknown | D | 0% |
| 1 Apr 2020 | $9.69M | $3.53M – $26.6M | $10.8M (+11%) | before first round | – | unknown | D | 0% |
| 1 May 2020 | $9.78M | $3.56M – $26.9M | $10.9M (+11%) | before first round | – | unknown | D | 0% |
| 1 Jun 2020 | $9.87M | $3.59M – $27.1M | $11.0M (+11%) | before first round | – | unknown | D | 0% |
| 1 Jul 2020 | $9.95M | $3.62M – $27.3M | $11.1M (+11%) | before first round | – | unknown | D | 0% |
| 1 Aug 2020 | $10.0M | $3.66M – $27.6M | $11.2M (+11%) | before first round | – | unknown | D | 0% |
| 1 Sep 2020 | $10.1M | $3.69M – $27.8M | $11.3M (+11%) | before first round | – | unknown | D | 0% |
| 1 Oct 2020 | $10.2M | $3.72M – $28.1M | $11.4M (+11%) | before first round | – | unknown | D | 0% |
| 1 Nov 2020 | $10.3M | $3.76M – $28.4M | $11.5M (+11%) | before first round | – | unknown | D | 0% |
| 1 Dec 2020 | $10.4M | $3.79M – $28.6M | $11.6M (+11%) | before first round | – | unknown | D | 0% |
| 1 Jan 2021 | $10.6M | $3.86M – $29.1M | $10.3M (-3%) | before first round | 17 | unknown | D | 0% |
| 1 Feb 2021 | $10.7M | $3.90M – $29.4M | $10.1M (-6%) | before first round | 17 | unknown | D | 0% |
| 1 Mar 2021 | $10.8M | $3.93M – $29.7M | $9.96M (-8%) | before first round | 17 | unknown | D | 0% |
| 1 Apr 2021 | $10.9M | $3.97M – $29.9M | $9.79M (-10%) | before first round | 17 | flat | D | 0% |
| 1 May 2021 | $11.0M | $4.00M – $30.2M | $9.63M (-12%) | before first round | 17 | flat | D | 0% |
| 1 Jun 2021 | $11.1M | $4.04M – $30.5M | $9.46M (-15%) | before first round | 17 | flat | D | 0% |
| 1 Jul 2021 | $11.2M | $4.07M – $30.7M | $9.30M (-17%) | before first round | 17 | flat | D | 0% |
| 1 Aug 2021 | $11.0M | $3.97M – $30.7M | $9.13M (-17%) | before first round | 17 | flat | D | 0% |
| 1 Sep 2021 | $10.9M | $3.87M – $30.7M | $8.97M (-18%) | before first round | 17 | flat | D | 0% |
| 1 Oct 2021 | $10.7M | $3.77M – $30.6M | $8.81M (-18%) | before first round | 17 | flat | D | 0% |
| 1 Nov 2021 | $10.6M | $3.68M – $30.5M | $8.64M (-18%) | before first round | 17 | flat | D | 0% |
| 1 Dec 2021 | $10.4M | $3.58M – $30.5M | $8.49M (-19%) | before first round | 17 | flat | D | 0% |
| 1 Jan 2022 | $17.0M | $6.78M – $36.3M | $15.4M (-9%) | before first round | 36 | growing | C | 0% |
| 1 Feb 2022 | $16.9M | $6.65M – $36.5M | $15.3M (-9%) | before first round | 36 | growing | C | 0% |
| 1 Mar 2022 | $16.8M | $6.53M – $36.7M | $15.2M (-10%) | before first round | 36 | growing | C | 0% |
| 1 Apr 2022 | $16.7M | $6.41M – $36.8M | $15.0M (-10%) | before first round | 36 | growing | C | 0% |
| 1 May 2022 | $16.5M | $6.28M – $37.0M | $14.9M (-10%) | before first round | 36 | growing | C | 0% |
| 1 Jun 2022 | $16.4M | $6.16M – $37.2M | $14.7M (-10%) | before first round | 36 | growing | C | 0% |
| 1 Jul 2022 | $16.3M | $6.04M – $37.3M | $14.5M (-11%) | before first round | 36 | growing | C | 0% |
| 1 Aug 2022 | $16.1M | $5.92M – $37.5M | $14.5M (-10%) | before first round | 36 | growing | C | 0% |
| 1 Sep 2022 | $16.0M | $5.80M – $37.6M | $14.5M (-10%) | before first round | 36 | growing | C | 0% |
| 1 Oct 2022 | $15.9M | $5.68M – $37.7M | $14.4M (-9%) | before first round | 36 | growing | C | 0% |
| 1 Nov 2022 | $11.4M | $3.42M – $37.8M | $10.4M (-8%) | before first round | 36 | unknown | D | 0% |
| 1 Dec 2022 | $11.3M | $3.35M – $38.0M | $10.4M (-8%) | before first round | 36 | unknown | D | 0% |
| 1 Jan 2023 | $23.9M | $8.25M – $58.9M | $25.1M (+5%) | before first round | 110 | growing | C | 0% |
| 1 Feb 2023 | $24.0M | $8.19M – $60.0M | $25.2M (+5%) | before first round | 110 | growing | C | 0% |
| 1 Mar 2023 | $24.1M | $8.14M – $60.9M | $25.3M (+5%) | before first round | 110 | growing | D | 0% |
| 1 Apr 2023 | $24.2M | $8.08M – $61.9M | $25.4M (+5%) | before first round | 110 | growing | D | 0% |
| 1 May 2023 | $24.3M | $8.01M – $62.9M | $25.4M (+5%) | before first round | 110 | growing | D | 0% |
| 1 Jun 2023 | $24.4M | $7.95M – $63.9M | $25.5M (+4%) | before first round | 110 | growing | D | 0% |
| 1 Jul 2023 | $24.5M | $7.88M – $64.9M | $25.6M (+4%) | before first round | 110 | growing | D | 0% |
| 1 Aug 2023 | $17.8M | $4.84M – $65.5M | $18.5M (+4%) | before first round | 110 | unknown | D | 0% |
| 1 Sep 2023 | $17.9M | $4.83M – $66.2M | $18.5M (+3%) | before first round | 110 | unknown | D | 0% |
| 1 Oct 2023 | $8.23M | $3.06M – $26.0M | $7.94M (-4%) | before first round | 43 | shrinking | D | 97% |
| 1 Nov 2023 | $8.22M | $3.04M – $26.1M | $7.88M (-4%) | before first round | 43 | shrinking | D | 97% |
| 1 Dec 2023 | $8.20M | $3.02M – $26.2M | $7.83M (-5%) | before first round | 43 | shrinking | D | 97% |
| 1 Jan 2024 | $8.19M | $3.00M – $26.3M | $7.78M (-5%) | before first round | 43 | shrinking | D | 97% |
| 1 Feb 2024 | $8.82M | $3.21M – $28.5M | $8.43M (-4%) | before first round | 50 | shrinking | D | 97% |
| 1 Mar 2024 | $8.82M | $3.19M – $28.6M | $8.39M (-5%) | before first round | 50 | shrinking | D | 97% |
| 1 Apr 2024 | $8.81M | $3.17M – $28.8M | $8.34M (-5%) | before first round | 50 | shrinking | D | 97% |
| 1 May 2024 | $8.79M | $3.15M – $28.9M | $8.30M (-6%) | before first round | 50 | shrinking | D | 97% |
| 1 Jun 2024 | $8.78M | $3.13M – $29.0M | $8.25M (-6%) | before first round | 50 | shrinking | D | 97% |
| 1 Jul 2024 | $8.77M | $3.11M – $29.1M | $8.20M (-6%) | before first round | 50 | shrinking | D | 97% |
| 1 Aug 2024 | $11.3M | $2.87M – $44.2M | $10.5M (-7%) | before first round | 44 | flat | D | 0% |
| 1 Sep 2024 | $11.2M | $2.83M – $44.1M | $10.4M (-7%) | before first round | 44 | flat | D | 0% |
| 1 Oct 2024 | $11.1M | $2.80M – $44.1M | $10.4M (-7%) | before first round | 44 | flat | D | 0% |
| 1 Nov 2024 | $11.0M | $2.77M – $44.0M | $10.3M (-6%) | before first round | 44 | flat | D | 0% |
| 1 Dec 2024 | $11.0M | $2.74M – $44.0M | $10.3M (-6%) | before first round | 44 | flat | D | 0% |
| 1 Jan 2025 | $10.9M | $2.71M – $43.9M | $10.3M (-6%) | before first round | 44 | flat | D | 0% |
| 1 Feb 2025 | $10.8M | $2.67M – $43.9M | $10.2M (-6%) | before first round | 44 | flat | D | 0% |
| 1 Mar 2025 | $10.8M | $2.65M – $43.9M | $10.2M (-5%) | before first round | 44 | flat | D | 0% |
| 1 Apr 2025 | $10.7M | $2.62M – $43.8M | $10.2M (-5%) | before first round | 44 | flat | D | 0% |
| 1 May 2025 | $8.69M | $2.59M – $39.6M | $8.26M (-5%) | before first round | 44 | down | D | 68% |
| 22 May 2025 | $600M | $522M – $861M | $748M (+25%) | after a round | 44 | down | A | 68% |
| 1 Jun 2025 | $604M | $522M – $861M | $743M (+23%) | after a round | 44 | down | A | 68% |
| 1 Jul 2025 | $615M | $522M – $861M | $730M (+19%) | after a round | 44 | down | A | 68% |
| 1 Aug 2025 | $627M | $522M – $861M | $716M (+14%) | after a round | 44 | down | A | 68% |
| 1 Sep 2025 | $604M | $522M – $705M | $536M (-11%) | after a round | 34 | shrinking | A | 97% |
| 1 Oct 2025 | $605M | $522M – $705M | $546M (-10%) | after a round | 34 | down | A | 97% |
| 1 Nov 2025 | $605M | $522M – $704M | $489M (-19%) | after a round | 30 | shrinking | A | 97% |
| 1 Dec 2025 | $606M | $522M – $704M | $470M (-23%) | after a round | 30 | shrinking | A | 97% |
| 1 Jan 2026 | $1.7B | $1.5B – $2.0B | $1.7B (+2%) | after a round | 34 | down | A | 97% |
| 2 Jan 2026 | $1.7B | $1.5B – $2.0B | $1.7B (+2%) | after a round | 34 | down | A | 97% |
| 1 Feb 2026 | $1.7B | $1.5B – $2.0B | $1.7B (0%) | after a round | 34 | down | A | 97% |
| 1 Mar 2026 | $1.7B | $1.5B – $2.1B | $1.8B (+2%) | after a round | 34 | flat | A | 89% |
| 1 Apr 2026 | $1.7B | $1.5B – $2.2B | $1.8B (+3%) | after a round | 34 | flat | A | 82% |
| 1 May 2026 | $1.8B | $1.5B – $2.3B | $1.9B (+4%) | after a round | 34 | flat | A | 76% |
| 1 Jun 2026 | $1.8B | $1.5B – $2.3B | $1.9B (+4%) | after a round | 34 | flat | A | 70% |
| 1 Jul 2026 | $1.9B | $1.5B – $2.4B | $2.0B (+4%) | after a round | 34 | flat | A | 64% |
| 1 Aug 2026 | $2.0B | $1.5B – $2.5B | $2.0B (+3%) | after a round | 34 | flat | A | 59% |
| 1 Sep 2026 | $2.0B | $1.5B – $2.6B | $2.1B (+1%) | after a round | 34 | flat | A | 54% |
| 1 Oct 2026 | $2.1B | $1.5B – $2.6B | $2.1B (-1%) | after a round | 34 | flat | A | 50% |
| 9 Oct 2026 | $3.1B | $2.7B – $5.3B | $4.7B (+50%) | after a round | 34 | flat | B | 0% |
| 24 Oct 2026 | $3.2B | $2.7B – $5.3B | $4.7B (+47%) | after a round | 34 | flat | B | 0% |
Key facts about Arena AI
- Founded
- 2015
- Headquarters
- London, United Kingdom
- Employees
- about 48
- Total raised
- $450M
- Funding rounds
- 3
- Last round
- Series B Oct 2026
Arena AI was founded in 2015 by Anastasios Angelopoulos, Ion Stoica and Wei-Lin Chiang.
Arena AI funding history
Arena AI has 3 funding rounds on record, from May 2025 to Oct 2026, $450M in total. The latest disclosed valuation is $3.10B post-money (Series B, Oct 2026).
Series B 8 Oct 2026
Led by Lightspeed Venture Partners, Khosla Ventures; with Salesforce Ventures, 01A, Dell Technologies Capital, Endeavor, Andreessen Horowitz, Felicis, AMP PBC, QuantumLight, The House Fund, Acrew Capital. Individuals: Panos Madamopoulos.
Sources: finsmes.com, eneralabs.com, ground.news and 2 more
$200M
$3.10B post-money
Series A 1 Jan 2026
Led by Felicis, UC Investments; with Andreessen Horowitz, The House Fund, LDVP, Kleiner Perkins, Lightspeed Venture Partners, Laude Ventures.
Sources: aiweekly.co, arena.ai, prnewswire.com and 5 more
$150M
$1.70B post-money
Seed 21 May 2025
Led by Andreessen Horowitz, UC Investments; with Lightspeed Venture Partners, Laude Ventures, Felicis, Kleiner Perkins, The House Fund.
Sources: prnewswire.com, siliconangle.com
$100M
$600M post-money
Arena AI investors
16 investors have backed Arena AI; Andreessen Horowitz, Felicis and Lightspeed Venture Partners and 2 more led at least one round.
- Andreessen Horowitz lead, 3 rounds
- Felicis lead, 3 rounds
- Lightspeed Venture Partners lead, 3 rounds
- UC Investments lead, 2 rounds
- Khosla Ventures lead
- Kleiner Perkins 2 rounds
- Laude Ventures 2 rounds
- 01A
- AMP PBC
- Endeavor
- LDVP
- Salesforce Ventures
What Arena AI does
Arena AI is classified under tech companies. No offerings or markets are recorded yet.
Arena AI is a platform that operates as a leaderboard and benchmark for AI models, including large language models, image, and code models. The platform facilitates real-world evaluation of AI models through community-driven comparison and voting, and supports AI research and development by processing inputs from third-party AI providers. Arena AI also provides real-time granular simulation for professional and media clients, enabling sports analytics and supporting clubs, leagues, federations, broadcasters, and publications in areas such as efficiency, revenue, and production time.
Description from Veridion's company data.
Industry codes (NAICS)
- 541512 Computer Systems Design Services 100% match
Questions about Arena AI
What is Arena AI worth?
Valuation $3.2B (range $2.7B to $5.3B), as of 24 Oct 2026. The last disclosed valuation was $3.10B (Series B, Oct 2026).
Has Arena AI raised money?
Arena AI has 3 funding rounds on record, from May 2025 to Oct 2026, $450M in total. The latest disclosed valuation is $3.10B post-money (Series B, Oct 2026).
Who has invested in Arena AI?
Andreessen Horowitz, Felicis, Lightspeed Venture Partners, UC Investments, Khosla Ventures and The House Fund, and 10 more. Lead investors include Andreessen Horowitz, Felicis, Lightspeed Venture Partners and UC Investments.
How many people work at Arena AI?
About 48. Headcount rose from 17 in Jan 2021 to 110 in Jan 2023, then fell to 34 in Jan 2026.
When was Arena AI founded, and where is it based?
Arena AI was founded in 2015 and is based in London, United Kingdom. It has about 48 employees.