Arena Overview

  • Year Founded
  • 2023

Year Founded

  • Status
  • Private

  • Employees
  • 110

Employees

  • Latest Deal Type
  • Series B

  • Latest Deal Amount
  • $200M

  • Investors
  • 26

Arena General Information

Description

Developer of an artificial intelligence evaluation platform designed to compare and benchmark frontier models through crowdsourced testing. The company's platform provides blind model comparisons, Elo-based rankings, community voting, and multimodal testing, enabling researchers, developers, and enterprises to evaluate AI models and select suitable models for specific use cases.

Contact Information

Website
www.arena.ai
Formerly Known As
Chatbot Arena, LMSYS, LMArena
Ownership Status
Privately Held (backing)
Financing Status
Venture Capital-Backed
Corporate Office
  • 2261 Market Street
  • Suite 85064
  • San Francisco, CA 94114
  • United States
Primary Industry
Software Development Applications
Other Industries
Media and Information Services (B2B)
Corporate Office
  • 2261 Market Street
  • Suite 85064
  • San Francisco, CA 94114
  • United States

Arena Timeline

202420252026
Financing RoundCaptured Employee CountEstimated Employee Growth

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Arena Valuation & Funding

Deal Type Date Amount Raised to Date Post-Val Status Stage
4. Early Stage VC (Series B) 08-Oct-2026 $200M Completed Generating Revenue
3. Early Stage VC (Series A) 06-Jan-2026 Completed Generating Revenue
2. Accelerator/Incubator 01-Jan-2026 $100M Completed Generating Revenue
1. Seed Round 21-May-2025 $100M $100M Completed Generating Revenue
To view Arena’s complete valuation and funding history, request access »

Arena Cap Table

Stock # of Shares
Authorized
Par Value Dividend Rate (%) Original
Issue Price
Liquidation Liquidation
Pref. Multiple
Conversion Price % Owned
Series B
Series A-4
Series A-3
Series A-1 1,845,680 $0.000017 8% $1.08 $1.08 1x $1.08 0.57%
Series A 23,485,700 $0.000017 8% $2.73 $2.73 1x $2.73 7.25%
To view Arena’s complete cap table history, request access »

VC Exit Predictor

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Opportunity Score

Calculated using Exit Type probabilities, the company’s stage, and PitchBook’s historical returns data.

Exit Type

Evaluates the likelihood of a successful exit for investors, and the most likely exit type.

Arena Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

Similarweb Unique Visitors

Majestic Referring Domains

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Arena Investors (26)

Investor Name Investor Type Holding Investor Since Participating Rounds
01 Advisors Venture Capital Minority
Acrew Capital Venture Capital Minority
AMP PBC Venture Capital Minority
Dell Technologies Capital Venture Capital Minority
Endeavor Catalyst Venture Capital Minority
You’re viewing 5 of 26 investors. Get the full list »

Arena FAQs

  • When was Arena founded?

    Arena was founded in 2023.

  • Where is Arena headquartered?

    Arena is headquartered in San Francisco, CA.

  • What is the size of Arena?

    Arena has 110 total employees.

  • What industry is Arena in?

    Arena’s primary industry is Software Development Applications.

  • Is Arena a private or public company?

    Arena is a Private company.

  • What is the current valuation of Arena?

    The current valuation of Arena is .

  • What is Arena’s current revenue?

    The current revenue for Arena is .

  • How much funding has Arena raised over time?

    Arena has raised $450M.

  • Who are Arena’s investors?

    01 Advisors, Acrew Capital, AMP PBC, Dell Technologies Capital, and Endeavor Catalyst are 5 of 26 investors who have invested in Arena.

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