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Adam Klotz

Solo GP · San Francisco, CA

Verified active in the last 12 months

Adam Klotz is a solo GP based in San Francisco, CA focused on Deep Tech, investing at pre-seed, seed stage. Adam Klotz's most recent fund with a disclosed size, 18 West Fund I, L.P., filed a $50M offering with the SEC in Jan 2026. Adam Klotz has 6 funds and deal vehicles on SEC file, including 5 single-deal SPVs. Estimated typical check: $500K–$1.5M. Adam Klotz has dated investing activity in the last 12 months (latest Sep 2026).

Why Adam Klotz is listed

Named as one of two individuals (Managing Partner of the General Partner of the Issuer) on the Form D for 18W 2026 Opportunity Fund I, L.P., a $260K venture SPV (Sep 2026) (6 vehicles on file: 1 fund, 5 SPVs).

Source: SEC Form D: 18W 2026 Opportunity Fund I, L.P. (Sep 17, 2026) · 5 more sources

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Stages
Pre-seed, Seed
Typical check (est.)
$500K–$1.5M
Latest fund
$50M · Jan 2026
Latest dated activity
Sep 2026

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What does Adam Klotz invest in?

Deep Tech

What has Adam Klotz invested in recently?

  • 18 West Fund I, L.P.

    Invested through a fund

    Jan 2026

Funds and deal vehicles Adam Klotz filed with the SEC

  • 18W 2026 Opportunity Fund I, L.P.

    Deal vehicle · $260K offering

    Sep 2026

  • 18 West Alpha I, L.P.

    Deal vehicle · $780K offering

    Mar 2026

  • 18 West Fund I, L.P.

    Fund · $50M offering

    Jan 2026

  • 18W Quantum Opportunity Fund II, L.P.

    Deal vehicle · $515K offering

    Dec 2024

  • 18W Quantum Opportunity Fund I, L.P.

    Deal vehicle · $1.25M offering

    Mar 2024

  • 18W Green Opportunity Fund I, L.P.

    Deal vehicle · $710K offering

    Jan 2024

Sources

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