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    TS

    The Slack Fund

    San Francisco, California, United StatesFounded 2015
    Enterprise SoftwareAIHR & TalentDeveloper ToolsSocial & CommunityFintechSaaSData & Analytics

    The Slack Fund invests in early-stage companies that are building the "Future of Work," with a focus on enterprise software, collaboration, productivity, and workplace technology startups. The firm takes a hands-on approach, partnering with founders from seed to early rounds to support innovation in a digital-first world.

    Average disclosed round size is $44.8M (across 51 rounds with reported amounts).

    Find people at The Slack Fund on Goldilocks AI

    Portfolio

    52

    Fund Size

    $100M

    Top Stage

    Series A

    Last 12 Mo

    1

    Team

    JS

    Jason Spinell

    Director or Managing Director

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    52 investments
    CompanyRoundAmountDate
    SSwarmiaSeries A$10MJun 2025
    Henry AI logoHenry AISeed$4MFeb 2025
    Opal Camera Inc. logoOpal Camera Inc.Series A$17MOct 2023
    Super.com logoSuper.comGrowth$60MApr 2023
    Videowise logoVideowiseSeed$3MMar 2023
    Riot logoRiotSeries A$12MFeb 2023
    Humaans logoHumaansSeries A$15MOct 2022
    Courier logoCourierSeries B$35MJun 2022
    Tango logoTangoSeries A$14MJun 2022
    FFive to NineSeed$4.3MJun 2022
    Glean logoGleanSeries C$100MMay 2022
    Oyster logoOysterSeries C$150MApr 2022
    Grain logoGrainSeries A$16MApr 2022
    Standard Metrics logoStandard MetricsSeries A$23.7MFeb 2022
    1Password logo1PasswordSeries C$620MJan 2022
    Electric logoElectricSeries D$90MOct 2021
    MindLabs logoMindLabsSeed$3.5MOct 2021
    Oyster logoOysterSeries B$50MJun 2021
    Nylas logoNylasSeries C$120MJun 2021
    PPipeGrowth$250MMay 2021
    PPipeGrowth$150MMar 2021
    Linktree logoLinktreeSeries B$45MMar 2021
    PPipeGrowth$50MMar 2021
    Hightouch logoHightouchSeed$2.1MDec 2020
    Donut logoDonutSeries A$12MOct 2020
    Page 1 of 3

    Top Co-Investors

    Okta5 shared
    Y Combinator5 shared
    Accel5 shared
    Shopify4 shared
    MSD Partners4 shared
    Founder Collective4 shared
    Felicis Ventures4 shared
    Tiger Global Management4 shared
    Salesforce4 shared
    FirstMark Capital4 shared
    Emergence Capital4 shared
    Greenspring Associates3 shared
    Hubspot Ventures3 shared
    Seven Seven Six3 shared
    Sequoia Capital3 shared
    Kleiner Perkins3 shared
    First Round Capital3 shared
    Susa Ventures3 shared
    SV Angel3 shared
    Gradient Ventures2 shared

    Last updated: 15 April 2026