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    Union Labs

    San Mateo, California, United StatesFounded 2018
    unionlabs.comLinkedIn
    AIRobotics & AutomationClimate & EnergyManufacturingHealthcareCybersecurityHardware & Semiconductors

    Union Labs is a deep-tech venture capital firm based in San Mateo, California, investing in pre-seed and seed-stage founders applying advanced technologies to solve hard, real-world problems. The firm takes a hands-on approach, often co-creating companies and providing operational expertise alongside capital.

    Their most common stage is seed (41% of deals). Average disclosed round size is $44.5M (across 14 rounds with reported amounts).

    Find people at Union Labs on Goldilocks AI

    Portfolio

    17

    Fund Size

    —

    Top Stage

    Seed

    Last 12 Mo

    0

    Team

    Nate Williams

    Nate Williams

    Founder, Managing Partner Of Union Peak and Union Labs​

    Annie Le​

    Annie Le​

    Operations Partner Of Union Peak and Union Labs​

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    17 investments
    CompanyRoundAmountDate
    Xsight logoXsightUnknown$300MJan 2026
    Pico MES logoPico MESSeries A$12.3MJan 2023
    Antimatter logoAntimatterSeries A$12MMar 2022
    99 Counties logo99 CountiesPre-Seed$3.8MFeb 2022
    Addionics logoAddionicsSeries A$27MJan 2022
    Pico logoPicoSeries A$200MJan 2022
    Rendered.ai logoRendered.aiSeed$6MOct 2021
    BButlr TechnologiesSeed$7.9MJul 2021
    Butlr logoButlrSeed$7.9MJul 2021
    Rewind logoRewindSeries B—Jan 2021
    EnPowered logoEnPoweredSeed$10.3MJan 2020
    GGiganticUnknown$7MJan 2020
    Raise Robotics logoRaise RoboticsSeed——
    OpsLevel logoOpsLevelSeed$5M—
    Zerofy logoZerofyPre-Seed——
    Strella Biotechnology logoStrella BiotechnologySeed$3.3M—
    BButlr Technologies Inc.Series A$20M—

    Top Co-Investors

    Tectonic Ventures4 shared
    Congruent Ventures3 shared
    Hyperplane3 shared
    General Catalyst2 shared
    Inovia Capital2 shared
    Momenta2 shared
    Lemnos2 shared
    Counterpart Ventures2 shared
    SE Ventures2 shared
    GV2 shared
    SOSV2 shared
    E14 Fund2 shared
    Founder Collective2 shared
    VMware1 shared
    New Enterprise Associates1 shared
    Segment1 shared
    Okta Ventures1 shared
    Databricks Ventures1 shared
    Dropbox Ventures1 shared
    Space Capital1 shared

    Last updated: 7 October 2026