A
Arena
Open community platform to benchmark and compare AI models through side-by-side evaluations and user voting
At a glance
- Founded
- 2025
- Headquarters
- San Francisco, United States
- Sector
- AI
- Power Law
- Unicorn$1–10B valuation tierThoroughbred$100M+ revenue
Latest news
Press, funding announcements and product moves mentioning Arena.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed5 investors entered at this stage
Felicis- UIUC Investments
Kleiner Perkins
Lightspeed Venture Partners
Andreessen Horowitz
Series A3 investors entered at this stage
- LVLaude Ventures
- LPLDV Partners
- TFThe House Fund
Series B and later2 investors entered at this stage
- UCUniversity of California
- BEBerkeley
Ownership
Estimated cap table from Dealroom's shareholder data — share of equity by holder. Stakes as last recorded by Dealroom (Jan/2026). Percentages are indicative.
Some investors are hidden on this public profile. See the full cap table on Dealroom →
Source: Dealroom Talent Intelligence.
Global footprint
team presence
across markets
Patents
The legacy portfolio estimate is under review because its company mapping needs reconciliation.
Explore the patent portfolioPatent records, technology areas and peer comparisonsMarket sentiment
An AI-synthesised read of the highest-engagement posts about Arena on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Arena on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.