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    SquareOne (formerly Paua Ventures) logo

    SquareOne (formerly Paua Ventures)

    Berlin, GermanyFounded 2010

    SquareOne (formerly Paua Ventures) is a Berlin-based venture capital firm focused on pre-seed and seed investments in European B2B technology companies. The firm typically acts as the first institutional investor on the cap table, backing entrepreneurs solving complex problems in large markets.

    Deal activity decreased year-over-year (1 deals in the last 12 months vs 5 prior). Average disclosed round size is $15.9M (across 11 rounds with reported amounts).

    Find people at SquareOne (formerly Paua Ventures) on Goldilocks AI

    Portfolio

    19

    Fund Size

    $107M

    Top Stage

    Series A

    Last 12 Mo

    1

    Team

    Christian Buchenau

    Christian Buchenau

    Partner

    GS

    Georg Stockinger

    Partner

    CB

    Charlotte Baumhauer

    Principal

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    21 investments
    CompanyRoundAmountDate
    Ultralytics logoUltralyticsSeries A$30MSep 2025
    goodcarbon logogoodcarbonSeries BMar 2025
    PHASE logoPHASEUnknown$13MFeb 2025
    Partscloud logoPartscloudSeedFeb 2025
    GGraph TherapeuticsPre-SeedJan 2025
    GraphTX logoGraphTXUnknown$3.1MJan 2025
    MagicX Hero logoMagicX HeroSeries A$12.2MJun 2024
    Atmio logoAtmioSeed$5.5MJun 2024
    Coboworx logoCoboworxSeries AJun 2024
    Retorio logoRetorioSeries ANov 2023
    Nexu logoNexuSeries B$20MOct 2023
    Alokai logoAlokaiSeries A$20MMar 2023
    VVue StorefrontSeries A$20MJan 2023
    Alokai logoAlokaiSeries A$20MJan 2023
    Hero logoHeroUnknownJan 2022
    Semron logoSemronUnknown$10.8M
    Flinn logoFlinnPre-Seed
    Flinn logoFlinnSeries A$20M
    Flinn logoFlinnSeed
    CC1 Green ChemicalsGrowth
    FFlinnPre-Seed

    Top Co-Investors

    Last updated: 8 September 2026