JAM Fund
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.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Subquadratic | May 2026 | Seed | Co-investor |
| Fun.xyz | May 2026 | Series A | Co-investor |
| Last Energy | Dec 2025 | Series C | Co-investor |
| Curative | Dec 2025 | Series B | Co-investor |
| Estate Media | Nov 2025 | Seed | Co-investor |
Key People
Justin Mateen
Founding Partner
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.