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    First In

    Washington, District of Columbia, United StatesFounded 2020
    wearefirstin.comLinkedIn
    HealthcareCybersecurityAIBiotech & Life SciencesFood & AgricultureDefense & SpaceConsumerHardware & SemiconductorsInfrastructure & CloudSocial & CommunityTelecom

    The venture capital firm First In focuses on early-stage investments in security technology sectors, including cybersecurity, defense, and data intelligence. Their strategy involves backing entrepreneurs who develop advanced technological solutions to secure freedom, leveraging the firm's expertise as former operators and founders.

    Deal activity increased 150% year-over-year (5 deals in the last 12 months). Average disclosed round size is $60.9M (across 18 rounds with reported amounts).

    Find people at First In on Goldilocks AI

    Portfolio

    18

    Fund Size

    $17M

    Top Stage

    Series A

    Last 12 Mo

    5

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    18 investments
    CompanyRoundAmountDate
    Antithesis logoAntithesisSeries A$105MDec 2025
    OOnfireSeries A$20MOct 2025
    ViCentra logoViCentraSeries D$85MSep 2025
    Classiq logoClassiqSeries C$110MMay 2025
    Classiq Technologies LTD logoClassiq Technologies LTDSeries C$110MMay 2025
    ZeroTier logoZeroTierSeries A$13.5MJul 2024
    CConfettiSeries A$16MMar 2024
    Antithesis logoAntithesisSeed$47MFeb 2024
    Pluton Biosciences logoPluton BiosciencesSeries A$16.5MMay 2023
    Infarm logoInfarmSeries D$200MDec 2021
    Pluton Biosciences logoPluton BiosciencesSeed$6.6MOct 2021
    OOttopiaSeries A$9MApr 2021
    4baseCare logo4baseCareSeed$2MMar 2021
    Peer Medical logoPeer MedicalSeed$1.2MSep 2020
    Castelion logoCastelionSeries A$100M—
    Castelion logoCastelionSeed$14.2M—
    Bria logoBriaSeries B$40M—
    Infarm logoInfarmGrowth$200M—

    Top Co-Investors

    Wing3 shared
    Andreessen Horowitz2 shared
    Lavrock Ventures2 shared
    BlueYard Capital2 shared
    Norwest Venture Partners2 shared
    NightDragon2 shared
    Hamilton Lane2 shared
    Clal2 shared
    NEVA SGR2 shared
    Phoenix Capital Ventures2 shared
    Team82 shared
    HSBC2 shared
    Samsung Next2 shared
    Grantham Foundation2 shared
    Fall Line Capital2 shared
    Amplify Partners2 shared
    Tamarack Global2 shared
    Qatar Investment Authority2 shared
    Hanaco Ventures2 shared
    Atomico2 shared

    Last updated: 8 March 2026