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    QuestMark Partners

    Baltimore, Maryland, United StatesFounded 1998
    www.questm.comLinkedIn
    Enterprise SoftwareSaaSFintechCybersecurityConsumer

    QuestMark Partners is an expansion-stage venture capital firm based in Baltimore, Maryland, providing growth capital of $5-15 million to exceptional management teams building market-leading or market-creating companies across the US.

    Average disclosed round size is $28.8M (across 29 rounds with reported amounts).

    Find people at QuestMark Partners on Goldilocks AI

    Portfolio

    23

    Fund Size

    —

    Top Stage

    Unknown

    Last 12 Mo

    0

    Team

    BS

    Ben Schapiro

    Chairman & CEO / Partner

    BM

    Brian Matthews

    Partner

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    32 investments
    CompanyRoundAmountDate
    Airship logoAirshipSeries F$25MJun 2018
    UUrban AirshipSeries F$25MJun 2018
    KeyMe logoKeyMeSeries D$25MSep 2017
    Xant logoXantGrowth—Jan 2017
    KeyMe logoKeyMeSeries C$15MSep 2016
    Vapotherm logoVapothermUnknown$30MJan 2016
    VVapothermIpo$56MJan 2016
    DDigabitSeries B$9MMay 2015
    VVapotherm, Inc.Series B$24.2MFeb 2014
    UuTest (Applause)Series E$43MJan 2014
    Guavus logoGuavusGrowth$20MJan 2014
    VVapothermUnknown$24MJan 2014
    Vapotherm logoVapothermUnknown$29MJan 2013
    VVapothermUnknown$29MJan 2013
    Vidyo logoVidyoSeries D$22.5MMay 2012
    Xirrus logoXirrusSeries E$23.5MJan 2012
    IntegenX logoIntegenXSeries C$40MDec 2011
    Vidyo logoVidyoSeries D$22.5MSep 2011
    Rhythm NewMedia logoRhythm NewMediaSeries C$10MNov 2010
    Xirrus logoXirrusUnknown$20MJan 2009
    GenVault logoGenVaultSeries C$13MJan 2008
    MMformationBridge—May 2007
    Courion logoCourionUnknown$9MJan 2000
    Venafi logoVenafiUnknown$100M—
    ADARA logoADARASeries C$23M—
    Page 1 of 2

    Top Co-Investors

    Morgenthaler Ventures8 shared
    Cross Creek8 shared
    August Capital6 shared
    Kaiser Permanente Ventures6 shared
    Intel Capital4 shared
    Battery Ventures3 shared
    Verizon Ventures3 shared
    True Ventures3 shared
    Adage Capital Management3 shared
    Gilde Healthcare3 shared
    Domain Associates3 shared
    White Star Capital2 shared
    Comcast Corporation2 shared
    The Goldman Sachs Group, Inc.2 shared
    Crestline Investors2 shared
    Perceptive Advisors2 shared
    Menlo Ventures2 shared
    Four Rivers Group2 shared
    Triangle Peak Partners2 shared
    Greenspring Associates2 shared

    Last updated: 9 September 2026