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    JAM Fund

    Los Angeles, California, United StatesFounded 2020
    jamfund.com
    ConsumerFintechHealthcareMobility & TransportationDefense & SpaceAIClimate & EnergyBiotech & Life SciencesEnterprise SoftwareRobotics & AutomationManufacturing

    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 investment in the last 12 months. Average disclosed round size is $29.6M (across 42 rounds with reported amounts).

    Find people at JAM Fund on Goldilocks AI

    Portfolio

    39

    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

    46 investments
    CompanyRoundAmountDate
    Last Energy logoLast EnergySeries C$100MDec 2025
    Curative logoCurativeSeries B$150MJan 2025
    Last Energy logoLast EnergySeries C$100MJan 2025
    Conta Simples logoConta SimplesSeries B$41.5MJan 2024
    Regent Craft logoRegent CraftSeries A$60MOct 2023
    Heading Health logoHeading HealthSeries A$4.5MJun 2023
    Usage AI logoUsage AISeed$9MJan 2023
    Heading Health logoHeading HealthSeries A$4.5MJan 2023
    Fondue logoFondueSeed$10.5MSep 2022
    PriceOye logoPriceOyeSeed—Aug 2022
    Quicklly logoQuickllySeed$4MJul 2022
    Yummy logoYummyUnknown$47MJun 2022
    clicOH logoclicOHSeries A$25MMay 2022
    Volopay logoVolopaySeries A$29MFeb 2022
    PayMongo logoPayMongoSeries B$31MFeb 2022
    Calii logoCaliiSeries A$22.5MJan 2022
    mPharma logomPharmaSeries D$35MJan 2022
    Tushop logoTushopPre-Seed$3MJan 2022
    Volopay logoVolopaySeries A$29MJan 2022
    Wasoko logoWasokoSeries B$125MJan 2022
    mPharma logomPharmaSeries A$6.6MJan 2022
    Udhaar Book logoUdhaar BookSeed—Nov 2021
    Breadfast logoBreadfastSeries A$26MNov 2021
    Yummy logoYummySeries A$18MOct 2021
    Pide Directo logoPide DirectoSeries A$5.3MOct 2021
    Page 1 of 2

    Top Co-Investors

    Y Combinator13 shared
    British International Investment5 shared
    Soma Capital4 shared
    Gaingels4 shared
    4DX Ventures4 shared
    Thiel Capital4 shared
    Flexport3 shared
    TO Ventures3 shared
    Fatima Gobi Ventures3 shared
    Base10 Partners3 shared
    Western Technology Investment3 shared
    Gigafund3 shared
    Golden Palm Investments3 shared
    Winklevoss Capital Management3 shared
    VentureSouq3 shared
    Tiger Global Management, LLC2 shared
    Novastar Ventures2 shared
    Northstar Group2 shared
    Social Capital2 shared
    Lux Capital2 shared

    Last updated: 7 October 2026