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JAM Fund is a solo-GP venture capital firm founded by Tinder co-founder Justin Mateen in 2020, headquartered in Los Angeles. The firm backs underestimated founders disrupting large markets, with notable investments in space, consumer platforms, and emerging markets across Latin America and Africa.
They made 1 investments in the last 12 months. Average disclosed round size is $25.2M (across 30 rounds with reported amounts).
Portfolio
30
Fund Size
$247.5M
Top Stage
Seed
Last 12 Mo
1
Team
JM
Justin Mateen
Founding Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
33 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Last Energy | Series C | $100M | Dec 2025 |
 Conta Simples | Series B | $41.5M | Jan 2024 |
 Regent | Series A | $60M | Oct 2023 |
 Usage AI | Seed | $9M | Jan 2023 |
 Fondue | Seed | $10.5M | Sep 2022 |
 Priceoye | Seed | — | Aug 2022 |
 Quicklly | Seed | $4M | Jul 2022 |
 Yummy | Unknown | $47M | Jun 2022 |
 Clicoh | Series A | $25M | May 2022 |
 PayMongo | Series B | $31M | Feb 2022 |
 Calii | Series A | $22.5M | Jan 2022 |
 mPharma | Series D | $35M | Jan 2022 |
 Tushop | Pre-Seed | $3M | Jan 2022 |
 Volopay | Series A | $29M | Jan 2022 |
 Udhaar Book | Seed | — | Nov 2021 |
 Breadfast | Series A | $26M | Nov 2021 |
| Yummy | Series A | $18M | Oct 2021 |
 Pide Directo | Series A | $5.3M | Oct 2021 |
 Orchata | Seed | $4M | Aug 2021 |
| YYELA | Seed | $2M | Aug 2021 |
 Bueno Finance | Seed | $3M | Jun 2021 |
| SShift One | Seed | $5.2M | Feb 2021 |
| UUdhaar | Seed | $6M | Jan 2021 |
 Laika | Series A | $12M | Sep 2020 |
 Krave Mart | Series A | — | — |
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Top Co-Investors
Y Combinator7 shared
Flexport3 shared
Soma Capital3 shared
Thiel Capital3 shared
VentureSouq3 shared
TO Ventures2 shared
Founders Fund2 shared
Integra Partners2 shared
Fatima Gobi Ventures2 shared
Rebel Fund2 shared
Base10 Partners2 shared
4DX Ventures2 shared
Anthos Capital2 shared
DFS Lab2 shared
Winklevoss Capital Management2 shared
Access Venture Partners2 shared
Antler2 shared
Jedar Capital2 shared
Next Billion Ventures2 shared
Future Africa2 shared
Last updated: 8 September 2026