COMPANY PROFILE · UPDATED 18 NOV 2025

Arena

Arena is a software firm that builds active learning systems and techniques like reinforcement learning.

arena-ai.com ↗

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Founded: 2019
Headcount: 33
Open roles: 0
Last raised: Series B · Sign in to view

LEADERSHIP

Founders & key people

OPEN ROLES

Hiring at Arena

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FUNDING

Capital raised

Total raised

$62,000,000

Investors

Founders Fund Initialized CapitalArpan PunyaniBrian RowenColin AndersonCristina CarlinoDavid PetraeusFifth Down CapitalFlexportFriends & Family CapitalGaruda VenturesGoldcrest CapitalJames RichardsJay SrinivasanMatt LongMichael SeibelPeter ThielQasar YounisRishi TapariaRyan SmithSean StenstromShield Capital

Funding rounds

Series B
Fifth Down Capital, Goldcrest Capital, Initialized Capital, Friends & Family Capital, Founders Fund, Shield Capital, Qasar Younis, Garuda Ventures, Michael Seibel
$30MApr 7, 2025
Series A
Goldcrest Capital, Initialized Capital, Flexport, Arpan Punyani, Michael Seibel, Rishi Taparia, Ryan Smith, Cristina Carlino, Matt Long, David Petraeus, James Richards, Qasar Younis, Fifth Down Capital, Brian Rowen, Colin Anderson, Jay Srinivasan, Sean Stenstrom, Peter Thiel, Founders Fund, Shield Capital
$32MAug 1, 2022

Funding data via Diffbot

Categorized in

Industry

AI & Machine Learning AI Infrastructure Foundation Models & LLMs

Investors

Founders Fund Initialized Capital

Industries

Software Companies Software As A Service Companies

Tech Stack

Next.js Typescript

LOCATIONS

Where they work

Arena Headquarters Location

New York, NY, 11217

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