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Justin Mateen

Individual

Founder of JAM Fund, a $200M+ solo GP venture fund. Co-Founder and former CMO of Tinder. Ranked #1 on Business Insider's top 100 US Seed Investors list in 2021 and 2022.

Justin Mateen is headquartered in Los Angeles, United States, has 10 recorded investments, and includes 7 companies in its recorded portfolio.

Pre-Seed
Early Stage
Fintech
Healthcare
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Headquarters
Los Angeles, United States
Website
jamfund.com
Portfolio Companies
7
Total Investments
10
Last Investment
Nov 2022
Geographic Focus
Global, United States

Indexed holds 7 portfolio companies and 10 funding rounds for this investor. The full record is or through the API.

Investment Thesis

Back underestimated founders with domain expertise who have something to prove and are disrupting large markets. Mateen writes significant personal checks alongside fund capital to align his balance sheet with portfolio founders.

Justin Mateen is an Individual based in Los Angeles, United States. It has made 10 investments, including Varda, MadEats and Usage AI. Focus areas include Fintech and Healthcare.

Portfolio7

Co-investors24

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24 co-investors across 33 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×18 · Angel Investor ×2 · Corporate VC ×2 · 28 shared rounds

Investment History

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