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Ben Horowitz

Solo GP · Menlo Park, CA

Verified active in the last 12 months

Ben Horowitz is a solo GP based in Menlo Park, CA focused on AI & ML, Biotech & Pharma, Crypto & Web3, investing at pre-seed to growth stage. Ben Horowitz's most recent fund with a disclosed size, RESW1, L.P., filed a $7.4M offering with the SEC in Mar 2023. Ben Horowitz has 28 funds and deal vehicles on SEC file, including 3 single-deal SPVs. Estimated typical check: $75K–$200K. Ben Horowitz has dated investing activity in the last 12 months (latest Sep 2026).

Why Ben Horowitz is listed

Named as one of two individuals (Ultimate managing member of the Issuer's GP) on the Form D for Ah AD 250, L.P., a venture fund (Sep 2026) (28 vehicles on file: 25 funds, 3 SPVs). Also a non-executive director at 2 startups that filed Form D.

Source: SEC Form D: Ah AD 250, L.P. (Sep 24, 2026) · 9 more sources

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Stages
Pre-seed to Growth
Typical check (est.)
$75K–$200K
Latest fund
$7.4M · Mar 2023
Latest dated activity
Sep 2026

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What does Ben Horowitz invest in?

AI & MLBiotech & PharmaCrypto & Web3Media, Gaming & Creator

What has Ben Horowitz invested in recently?

  • Ah AD 250, L.P.

    Invested through a fund

    Sep 2026

  • Atoah, L.P.

    Invested through a fund

    Sep 2026

  • CSS Solutions

    Board seat on the company's SEC filing (not by itself proof of an investment) · CA

    Aug 2026

  • DATAH, L.P.

    Invested through a fund

    Aug 2026

  • Carolah Opportunities I, L.P.

    Invested through a fund

    Aug 2026

  • AH AI Opportunities Fund, L.P.

    Invested through a fund

    Jul 2026

  • AH Crypto Fund V-B, L.P.

    Invested through a fund

    Jul 2026

  • AH American Dynamism Fund II-B, L.P.

    Invested through a fund

    Jul 2026

  • Curah II, L.P.

    Invested through a fund

    Apr 2026

  • AH Crypto Fund V, L.P.

    Invested through a fund

    Apr 2026

  • AH Crypto Feeder Fund V, L.P.

    Invested through a fund

    Apr 2026

  • TAP Investment Fund, L.P.

    Invested through a fund

    Jan 2026

  • AH American Dynamism Fund II, L.P.

    Invested through a fund

    Jan 2026

  • Curah, L.P.

    Invested through a fund

    Dec 2025

  • AH Bio Fund V-B, L.P.

    Invested through a fund

    Dec 2025

Funds and deal vehicles Ben Horowitz filed with the SEC

Sources

Data refreshed from public sources Oct 15, 2026. Is this you? Remove or correct this profile.