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    Oak Investment Partners logo

    Oak Investment Partners

    Wilton, Connecticut, United StatesFounded 1978
    www.oakvc.comLinkedIn
    FintechHealthcareClimate & EnergyConsumerEnterprise Software

    Oak Investment Partners is a multi-stage venture capital firm founded in 1978, headquartered in Wilton, Connecticut. The firm invests across the entire venture capital spectrum—from early-stage through growth equity and PIPE investments—in sectors including Information Technology, Internet & Consumer, Financial Services Technology, Healthcare Information & Services, and Clean Energy.

    Average disclosed round size is $44.7M (across 94 rounds with reported amounts).

    Find people at Oak Investment Partners on Goldilocks AI

    Portfolio

    76

    Fund Size

    —

    Top Stage

    Unknown

    Last 12 Mo

    0

    Team

    Ann Lamont

    Ann Lamont

    Managing Partner

    Bandel Carano

    Bandel Carano

    Managing Partner

    Ed Glassmeyer

    Ed Glassmeyer

    Managing Partner

    Fred Harman

    Fred Harman

    Managing Partner

    Andrew Adams

    Andrew Adams

    General Partner

    Grace Ames

    Grace Ames

    General Partner & Chief Operating Officer

    Brian Dunefsky

    Brian Dunefsky

    Chief Compliance Officer

    Dana Tavella

    Dana Tavella

    Controller

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    100 investments
    CompanyRoundAmountDate
    Phononic, Inc. logoPhononic, Inc.Growth$50MJul 2021
    SmartDrive Systems, Inc. logoSmartDrive Systems, Inc.Unknown$90MSep 2019
    MobiTV, Inc. logoMobiTV, Inc.Growth$50MJul 2019
    Clarient logoClarientSeries A$14MJul 2018
    FreshBooks logoFreshBooksSeries B$43MJul 2017
    Brit + Co logoBrit + CoSeries C$15MMay 2017
    MobiTV, Inc. logoMobiTV, Inc.Growth$21MFeb 2017
    PPrecision Medicine GroupGrowth$275MJan 2017
    MMobitvGrowth$21MJan 2017
    Protean Electric logoProtean ElectricSeries E$40MJan 2016
    Attivio, Inc. logoAttivio, Inc.Series E$31MJan 2016
    NNowThisSeries D$16.2MDec 2015
    PulsePoint logoPulsePointUnknown$30MSep 2015
    GGiosisSeries A$82.1MJul 2015
    Cloud Technology Partners logoCloud Technology PartnersSeries B$3.5MJun 2015
    Brit + Co logoBrit + CoSeries B$20MJun 2015
    Photobucket Corporation logoPhotobucket CorporationSeed$3.6MMar 2015
    PPhotobucketUnknown$3.6MJan 2015
    DueDil logoDueDilSeries B$17MMar 2014
    RazorGator logoRazorGatorUnknown$60MJan 2014
    PPhotobucketSeries E—Jan 2014
    NanoH2O logoNanoH2OUnknown$200MJan 2014
    PPotbelly SandwichUnknown$105MOct 2013
    RRebelMouseSeries A$10.3MAug 2013
    DueDil logoDueDilSeries A$5MApr 2013
    Page 1 of 4

    Top Co-Investors

    Intel Capital6 shared
    Accel5 shared
    Venrock5 shared
    Benchmark3 shared
    Hercules Capital, Inc.3 shared
    Meritech Capital3 shared
    Domain Associates3 shared
    New Enterprise Associates3 shared
    Apax Partners3 shared
    Redpoint Ventures3 shared
    The Goldman Sachs Group, Inc.3 shared
    Menlo Ventures3 shared
    The New York Times3 shared
    Foundation Capital3 shared
    HealthCap3 shared
    Voyager Ventures2 shared
    Silicon Valley Bank2 shared
    SoftBank Vision Fund2 shared
    Notion Capital2 shared
    Passion Capital2 shared

    Last updated: 8 September 2026