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    KCK Group

    New York, New York, United StatesFounded 2015
    kck-fs.comLinkedIn
    FintechHealthcareBiotech & Life SciencesClimate & Energy

    KCK Group is a multi-billion AUM single-family office based in New York, managing assets for the Kassar family. The firm operates through multiple investment vehicles — including KCK Financial Services (fintech/financial services) and KCK Medtech (medical devices) — investing across life sciences, energy, industrials, and financial services from early-stage to growth and public companies.

    52% of their portfolio is in Healthcare. Average disclosed round size is $59.9M (across 23 rounds with reported amounts).

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    Portfolio

    14

    Fund Size

    —

    Top Stage

    Series C

    Last 12 Mo

    0

    Team

    TE

    Tony Ettinger

    Senior Managing Director/

    TH

    Timothy Ho

    Managing Director/ Operating Partner/

    DD

    Dustin DeWitt

    Principal/

    GJ

    Grace Jiang

    Vice President/

    TS

    Terry Smith

    Financial Controller/

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    23 investments
    CompanyRoundAmountDate
    Chain Reaction logoChain ReactionSeries C$70MFeb 2023
    RefleXion Medical logoRefleXion MedicalSeries C$100MJan 2023
    Mainspring Energy, Inc. logoMainspring Energy, Inc.Series D$95MMay 2021
    Crusoe logoCrusoeSeries B$128MJan 2021
    Aerin Medical logoAerin MedicalGrowth$48MAug 2020
    NeuroPace logoNeuroPaceUnknown$67MJan 2020
    RefleXion logoRefleXionSeries A$100MJan 2020
    RefleXion Medical logoRefleXion MedicalSeries A$11.6MJan 2020
    Crusoe logoCrusoeGrowth$70MDec 2019
    Crusoe logoCrusoeSeries C$30MDec 2019
    Sight Sciences logoSight SciencesSeries D$31MSep 2019
    Wunder Mobility logoWunder MobilitySeries B$30MSep 2018
    RefleXion logoRefleXionSeries C$100MApr 2018
    EEtaGenSeries C$83MJan 2018
    Better Mortgage logoBetter MortgageSeries A$30MJun 2016
    RefleXion Medical logoRefleXion MedicalSeries B$46MApr 2016
    RefleXion logoRefleXionSeries B$46MApr 2016
    RefleXion Medical logoRefleXion MedicalGrowth$100MJan 2016
    Better Mortgage logoBetter MortgageSeries A$30MJan 2016
    Affirmed Networks logoAffirmed NetworksSeries C$51MJun 2013
    IAM Robotics logoIAM RoboticsSeries B$20M—
    RefleXion logoRefleXionSeries A$11.6M—
    RefleXion logoRefleXionUnknown$80M—

    Top Co-Investors

    Venrock9 shared
    Sofinnova Partners9 shared
    Pfizer Ventures9 shared
    T. Rowe Price6 shared
    Ally Bridge Group6 shared
    Johnson & Johnson Innovation4 shared
    Bain Capital Ventures3 shared
    Winklevoss Capital Management3 shared
    Polychain Capital3 shared
    Founders Fund3 shared
    Catalio Capital Management3 shared
    Bill Gates2 shared
    KCK2 shared
    Khosla Ventures2 shared
    Exor Ventures2 shared
    Upper902 shared
    The Goldman Sachs Group, Inc.2 shared
    Gaingels2 shared
    Pine Brook2 shared
    OrbiMed2 shared

    Last updated: 20 October 2026