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JAM Fund

JAM Fund

Los Angeles, Californiajamfund.com

Overview

JAM Fund, founded by Justin Mateen in 2020 and headquartered in Los Angeles, California, is a venture capital firm known for investing in visionary founders disrupting large markets. The firm focuses on early-stage investments, particularly in sectors such as fintech, e-commerce, SaaS, and consumer technology. JAM Fund often co-invests with other prominent venture capital firms like Y Combinator, Andreessen Horowitz, and Thiel Capital, enhancing their ability to support startups with substantial resources and networks. The firm leverages its founder's extensive network and experience to provide strategic guidance and operational support to its portfolio companies, helping them navigate growth and scale effectively. With a focus on high-potential early-stage companies, JAM Fund continues to make significant contributions to the startup ecosystem.

Year Founded

2020

Portfolio Companies

75

Investments

JAM Fund investments
CompanyDateStageLead
SubLinqMay 2026SeedCo-investor
SubquadraticMay 2026SeedCo-investor
Fun.xyzMay 2026Series ACo-investor
Liquid Ammonia Sustainable TechnologiesDec 2025Series CCo-investor
Last EnergyDec 2025Series CCo-investor

Key People

Justin Mateen

Founding Partner

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersLos Angeles, California
Year Founded2020

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