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    Tamarack Global

    Greenwich, Connecticut, United StatesFounded 2018
    www.tamarackglobal.comLinkedIn
    AIDefense & SpaceManufacturingClimate & EnergyData & AnalyticsHardware & SemiconductorsInfrastructure & Cloud

    Tamarack Global is a Greenwich, Connecticut-based venture capital firm founded in 2018 that invests in early-stage deep-tech companies across defense, energy, AI, advanced manufacturing, and space sectors.

    Average disclosed round size is $151.9M (across 29 rounds with reported amounts).

    Find people at Tamarack Global on Goldilocks AI

    Portfolio

    23

    Fund Size

    $72M

    Top Stage

    Series C

    Last 12 Mo

    6

    Team

    JL

    Jamie Lee

    Managing Partner

    JM

    John McCormick

    Founder & Managing Partner

    RE

    Rob Eloff

    Partner

    SC

    Shuo Cheng

    Partner

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    37 investments
    CompanyRoundAmountDate
    HHark LabsSeries A$700MMay 2026
    Rilian logoRilianSeed$17.5MApr 2026
    Blue Energy logoBlue EnergyUnknown$380MApr 2026
    Isembard logoIsembardSeries C—Mar 2026
    Impulse Space logoImpulse SpaceSeries D$150MJan 2026
    Hark logoHarkSeries A—Jan 2026
    Titan Dynamics logoTitan DynamicsSeed$9MJan 2026
    Blue Energy logoBlue EnergyUnknown$380MJan 2026
    Isembard logoIsembardSeries A$50MJan 2026
    Antithesis logoAntithesisSeries A$105MDec 2025
    PPoseidon AerospaceSeed—Nov 2025
    Figure logoFigureSeries C$1BSep 2025
    Figure AI logoFigure AISeries C—Sep 2025
    Isembard logoIsembardSeries A$9MApr 2025
    EARTH AI logoEARTH AISeries B$20MJan 2025
    Figure AI logoFigure AISeries C—Jan 2025
    Impulse Space logoImpulse SpaceSeries C$150MOct 2024
    Antithesis logoAntithesisSeed$47MFeb 2024
    Figure AI logoFigure AISeries A—Jan 2024
    Figure logoFigureSeries C$70MMay 2023
    Moxion Power logoMoxion PowerSeries B$100MSep 2022
    FreshCut logoFreshCutSeries A$15MMay 2022
    Venus Aerospace logoVenus AerospaceSeries A$20MApr 2022
    Genies logoGeniesSeries C$150MApr 2022
    Vest logoVestSeed$6MJan 2022
    Page 1 of 2

    Top Co-Investors

    Founders Fund7 shared
    FJ Labs7 shared
    Parkway Venture Capital7 shared
    Airbus Ventures6 shared
    DCVC6 shared
    Balerion Space Ventures6 shared
    Lux Capital6 shared
    Trousdale Ventures6 shared
    Intel Capital6 shared
    Overmatch Ventures5 shared
    Qualcomm Ventures5 shared
    Brookfield Corporation5 shared
    Alumni Ventures4 shared
    137 Ventures4 shared
    First In4 shared
    Salesforce Ventures4 shared
    LG Technology Ventures4 shared
    Gaingels4 shared
    Silver Lake4 shared
    BOND4 shared

    Last updated: 20 October 2026