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    Marathon

    Athens, GreeceFounded 2017
    AIFintechCybersecurityData & AnalyticsConsumerBiotech & Life SciencesRobotics & AutomationHealthcareMobility & TransportationEducationManufacturing

    Marathon is a seed to Series C stage investment firm based in Athens, Greece. It has made 19 investments, with focus areas including AI, Fintech, Cybersecurity, Data & Analytics, Consumer, Biotech & Life Sciences, Robotics & Automation, Healthcare, Mobility & Transportation, Education, Manufacturing. Deal activity decreased year-over-year (2 deals in the last 12 months vs 5 prior). Average disclosed round size is $56.4M (across 19 rounds with reported amounts).

    Find people at Marathon on Goldilocks AI

    Portfolio

    19

    Fund Size

    $175M

    Top Stage

    Series A

    Last 12 Mo

    2

    Team

    GR

    Gokul Rajaram

    Founding Partner and Company Helper

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    19 investments
    CompanyRoundAmountDate
    PPolyModels HubSeries A$7.9MNov 2025
    Niural logoNiuralSeries A$31MJun 2025
    Mercury logoMercurySeries C$300MMar 2025
    boon AI logoboon AISeries A$20.5MDec 2024
    Boon logoBoonSeries A$20.5MDec 2024
    Prima logoPrimaUnknown$23MDec 2024
    PPolyModels HubSeed$1.4MJul 2024
    Causaly logoCausalySeries B$60MJul 2023
    VVelos RotorsSeed$2MApr 2023
    HHack The BoxSeries C$55MJan 2023
    CCube RMSeries A$8MDec 2021
    SShanghai MediTrust Health Technology Co., Ltd.Series C$308MAug 2021
    Avenger Flight Group LLC logoAvenger Flight Group LLCUnknown$155MJul 2021
    Addi logoAddiSeries B$35MMay 2021
    HHack The BoxSeries A$10.6MApr 2021
    Augmenta logoAugmentaSeed$2.3MOct 2019
    Netdata logoNetdataSeries A$17MSep 2019
    LearnWorlds logoLearnWorldsSeed$1.1MJul 2019
    DDelian Alliance IndustriesUnknown$14M—

    Top Co-Investors

    Paladin Capital Group2 shared
    Osage University Partners2 shared
    Brighteye Ventures2 shared
    Endeavor Catalyst2 shared
    Andreessen Horowitz2 shared
    Quona2 shared
    Redpoint Ventures2 shared
    Boyu Capital1 shared
    Alliance Ventures1 shared
    Lilly Asia Ventures1 shared
    Bank of China Group Investment1 shared
    Sinovation1 shared
    The Carlyle Group1 shared
    Union Square Ventures1 shared
    8VC1 shared
    Citius1 shared
    GGV Capital1 shared
    Foundation Capital1 shared
    Monashees1 shared
    Runa Capital1 shared

    Last updated: 16 April 2026