The Side Letter LogoThe Side Letter

    The LP Edge in Private Markets

    Join our private intelligence network of leading LPs and allocators.

    The Side Letter is a research platform for LPs and allocators. We surface breakout funds, companies, and themes early by drawing insight from the people closest to the action.

    Allocators use The Side Letter for:

    Discovery

    • Who's in market, what they're investing in, and why it matters.

    Research & Workflows

    • Benchmarking, comparisons, and portfolio-level insights.
    • Memo creation, IC prep, and LP updates.

    Network-Driven Diligence

    • Access to insight from a trusted peer network.
    • Collaborative diligence that builds conviction.
    • Reference checks as a service.

    Enterprise Intelligence (coming)

    • Unified search across internal context and external research.
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    Go Beyond the Checklist

    Our research approach is driven by the questions that data rooms can't answer.

    We start with a simple premise: every fund is the result of a journey—a series of decisions that shaped the person, their taste, and strategy. With this as the foundation, we then dive into the insights, track record, and body of work that separate signal from noise.

    Read Our Framework
    Our philosophy →

    The Intelligence Behind What's Next

    Ground truth insights on the fund managers, portfolio companies, theses, and market inflections shaping the future of venture.

    Artificial Intelligence (AI)
    Women's Health
    Deeptech
    Accelerators
    Cybersecurity
    Solo GPs
    LATAM
    Climate Tech
    Fintech
    Mental Health
    Energy
    Impact Investments
    Marketplaces
    Consumer
    Spin-Out Funds
    Immigrant Founders
    Artificial Intelligence (AI)
    Women's Health
    Deeptech
    Accelerators
    Cybersecurity
    Solo GPs
    LATAM
    Climate Tech
    Fintech
    Mental Health
    Energy
    Impact Investments
    Marketplaces
    Consumer
    Spin-Out Funds
    Immigrant Founders
    Immigrant Founders
    Spin-Out Funds
    Consumer
    Marketplaces
    Impact Investments
    Energy
    Mental Health
    Fintech
    Climate Tech
    LATAM
    Solo GPs
    Cybersecurity
    Accelerators
    Deeptech
    Women's Health
    Artificial Intelligence (AI)
    Immigrant Founders
    Spin-Out Funds
    Consumer
    Marketplaces
    Impact Investments
    Energy
    Mental Health
    Fintech
    Climate Tech
    LATAM
    Solo GPs
    Cybersecurity
    Accelerators
    Deeptech
    Women's Health
    Artificial Intelligence (AI)