About JAM Fund
Sole general partner firm led by Tinder co‑entrepreneur Justin Mateen championing underserved entrepreneurs with something to prove, unusually active in Latin America and Africa and in space‑adjacent and consumer platform bets.

Sole general partner firm led by Tinder co‑entrepreneur Justin Mateen championing underserved entrepreneurs with something to prove, unusually active in Latin America and Africa and in space‑adjacent and consumer platform bets.
Zeros in on unsexy, antiquated markets (warehousing, real estate, adult incontinence), avoids crypto/VR/drones, and runs alumni-focused Company builders Programs (Palantir, Rippling, Amazon) plus a Quit-by-Christmas support program.
NY headquarters plus offices in Accra, Cairo alongside Nairobi combine global funding-space entry with local operator proximity. A key differentiator: ex-Bridgewater/Morgan Stanley venture leaders alongside repeat backer of Africa's B2B e-commerce leaders.
4F Ventures, a VC firm operating from Costa Mesa, California. The fund channels investment into formative-stage technology companies that are dedicated to scaling their businesses and achieving significant growth. 4F Ventures is geared toward both the US and international markets, and has experience working with companies in a variety of industries, including software, hardware, telecommunications, and consumer goods. Beyond this, 4F Ventures also presents additional services, such as mentorship and access to capital, to assistance the companies it funds achieve their goals.
Leads seed, doubles down at Series A, and incubates emerging ventures; an unusually operator-heavy founding team (Eventbrite founder, ex-Uber finance head, ex-Coatue investor) features hands-on operational, finance, and growth support. With a disciplined investment approach, the team drives value for both founders and investors.
Seed-stage fund founded by Ramtin Naimi whose boom-bust-resurgence background runs an institutionalized super-angel network that orchestrates targeted introductions to top multi-stage funds, boosting Series A graduation. Through targeted capital deployment, the fund plays an active role in the startup ecosystem.
Seed/early-phase AI-native business software investor making ~7 new investments yearly, originated the Diversity Rider to include underrepresented investors, and pursues fewer-bets, deeper relationships; 60% reach Series B/C. With a disciplined investment approach, the team drives value for both founders and investors.