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    Side Door Ventures logo

    Side Door Ventures

    San Francisco, California, United StatesFounded 2020
    www.sdv.vcLinkedIn
    Defense & SpaceCrypto & Web3

    Side Door Ventures is a global venture capital firm that invests in "audacious founders building tomorrow's life-changing companies" and "the future at the fringe," maintaining a sector-agnostic approach across diverse areas like software, life sciences, space, frontier tech, blockchain, gaming, and financial services. Their strategy involves multiple funds (Seed, Michigan, Digital Asset, and Opportunity Funds) to support companies from early-stage to Series A+ growth, often co-investing and providing strategic guidance and operational expertise.

    67% of their portfolio is in Defense & Space. Their most common stage is seed (67% of deals). Average disclosed round size is $11.7M (across 3 rounds with reported amounts).

    Find people at Side Door Ventures on Goldilocks AI

    Portfolio

    3

    Fund Size

    —

    Top Stage

    Seed

    Last 12 Mo

    0

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    3 investments
    CompanyRoundAmountDate
    K2 Space logoK2 SpaceSeed$8.5MOct 2023
    Varda Space Industries logoVarda Space IndustriesSeries B$25MMay 2023
    Stablecorp logoStablecorpSeed$1.5MApr 2022

    Top Co-Investors

    First Round Capital1 shared
    Republic1 shared
    Boost VC1 shared
    Pathbreaker Ventures1 shared
    Alpine Space Ventures1 shared
    Circle Ventures1 shared
    Genesis Investments1 shared
    Stellar Development Foundation1 shared
    Borderless Capital1 shared

    Last updated: 16 April 2026