Arena - About the company
Arena is a series A company based in San Francisco (United States), founded in 2025 by Ion Stoica, Anastasios Angelopoulos and Wei-Lin Chiang. It operates as a Provider of a platform for benchmarking and comparing AI models. Arena has raised $250M in funding from investors like University Of California, Andreessen Horowitz and Felicis Ventures, with a current valuation of $1.7B. The company has 47 active competitors, including 3 that are funded. Its top competitors include companies like Vals AI, Design Arena and Clever AI.
Sectors and market segments that Arena operate in
Arena serves in the High Tech, Native AI market segments.The primary business model of Arena are:Company Details
Provider of a platform for benchmarking and comparing AI models. The platform allows users to evaluate and contrast different artificial intelligence models. It offers features such as a leaderboard, search functionality, and a battle mode for model comparisons.
- Website
- arena.ai
- Social
Key Metrics
Founded Year
2025
Location
San Francisco, United States
Stage
Series A
Total Funding
$250M in 2 rounds
Latest Funding Round
Post Money Valuation
$1.7B as on Jun 01, 2026
Investors
Ranked
1st among 47 active competitors
Employee Count
96 as on Aug 31, 2026
Sign up to download Arena's company profile
Arena's funding and investors
Arena has raised a total funding of $250M over 2 rounds. Its first funding round was on May 21, 2025. Its latest funding round was a Series A round on Jan 06, 2026 for $150M. 8 investors participated in its latest round. Arena has 9 institutional investors.
Here is the list of recent funding rounds of Arena:
Date of Funding | Funding Amount | Round Name | Post-Money Valuation | Revenue Multiple | Lead Investors | Other Investors |
|---|---|---|---|---|---|---|
Jan 06, 2026 | $150M | Series A | $1.7B | - | ||
May 21, 2025 | $100M | Seed | $600M | - |
Access funding benchmarks and valuations. Sign up today!View details of Arena's funding rounds and investors
Arena's founders and board of directors
Founder? Claim ProfileThe founders of Arena are Ion Stoica, Anastasios Angelopoulos and Wei-Lin Chiang. Anastasios Angelopoulos is the CEO of Arena.
Here are the details of Arena's key team members:
- Ion Stoica: Co-Founder of Arena. Contact Info: 1 email address
- Anastasios Angelopoulos: Co-Founder & CEO of Arena and founder of 1 other company. Contact Info: 2 email addresses
- Wei-Lin Chiang: Co-Founder & CTO of Arena and founder of 1 other company.
View details of Arena's Founder profiles and Board Members
Arena's employee count trend
Arena has 96 employees as of Aug 26. Here is Arena's employee count trend over the years:
Uncover Arena's growth story! Sign up today!
Access Tracxn on any website
Install Tracxn ExtensionOur Google Chrome extension lets you view company details while browsing their websites
Arena's Competitors and alternates
Top competitors of Arena include Vals AI, Design Arena and Clever AI. Here is the list of Top 10 competitors of Arena, ranked by Tracxn score:
Get insights and benchmarks for competitors of 2M+ companies! Sign up today!
Rank | Company Details | Short Description | Total Funding | Investors | Tracxn Score |
|---|---|---|---|---|---|
1st |  Arena 2025, San Francisco (United States), Series A | Provider of a platform for benchmarking and comparing AI models | $250M | 64/100 | |
2nd | Vals AI 2023, San Francisco (United States), Series A | AI powered legal workflow automation platform | $40M | 59/100 | |
3rd | Design Arena 2025, San Francisco (United States), Seed | AI tools for design creation and visualization | $7.9M | 39/100 | |
4th |  Clever AI Unfunded | Provider of software tools for accessing multiple artificial intelligence models | - | - | 38/100 |
5th | Open Athena 2024, United States, Unfunded | Provider of engineering and infrastructure to accelerate scientific foundation model development | - | - | 28/100 |
6th |  LayerLens 2024, Miami (United States), Unfunded | Provider of a platform for evaluating generative AI application performance | - | - | 27/100 |
7th |  BiasAI 2021, New York City (United States), Unfunded | Provider of a cloud and AI-enabled image annotation platform | - | - | 24/100 |
8th | Provider of enterprise artificial intelligence training deployment and vision services | - | - | 24/100 | |
9th |  GPUVault 2023, Unfunded | Provider of fully managed CloudGPU hosting for AI model building and deployment | - | - | 24/100 |
10th |  Countless 2022, New York (United States), Unfunded | - | - | - | 24/100 |
Get insights and benchmarks for competitors of 2M+ companies! Sign up today!Looking for more details on Arena's competitors? Click here to see the top ones
Arena's Investments and acquisitions
Arena has made no investments or acquisitions yet.
Reports related to Arena
Here is the latest report on Arena's sector:
News related to Arena
Media has covered Arena for a total of 6 events in the last 1 year, 3 of them have been about company updates and 1 about partnerships.
•
•
ARENA shortlists projects for Hydrogen Headstart Round 2 with slashed budgetRenewables Now•May 13, 2026•Arena
•
Arena Launches Academic Partnerships Program to Advance AI Evaluation ResearchPR Newswire•Feb 10, 2026•Arena
•
AI Evaluation Startup LMArena Secures $150M at $1.7B ValuationSiliconAngle•Jan 07, 2026•University of California, Felicis Ventures, University Of California, The House Fund and 6 others
•
•
A16z Leads $100M Seed Funding for AI Startup LM ArenaTech in Asia•May 22, 2025•Andreessen Horowitz, Lightspeed Venture Partners, Felicis Ventures, Kleiner Perkins and 1 other
Get curated news about company updates, funding rounds, M&A deals and others. Sign up today!Are you a Founder ?
FAQs about Arena
Explore our recently published companies
- WISEBEES ACADEMY - United Kingdom based, 2017 founded, Unfunded company
- AAA Sports Memorabilia - Liverpool based, 2017 founded, Unfunded company
- Ed- Your UK Home Education Magazine - United Kingdom based, 2023 founded, Unfunded company
- Infors HT - Bottmingen based, 1965 founded, Unfunded company
- Giulio Superti-Furga Lab - Austria based, Unfunded company
- Org-BOOST - Germany based, Unfunded company
