William Barnes
Solo GP · Austin, TX
William Barnes is a solo GP based in Austin, TX focused on Space, investing at pre-seed, seed stage. William Barnes's most recent fund with a disclosed size, Karman Ventures Fund 1, LP, filed a $41.6M offering with the SEC in Jun 2025. William Barnes has 6 funds and deal vehicles on SEC file, including 4 single-deal SPVs. Estimated typical check: $425K–$1.25M. William Barnes's latest dated investing activity was in Jun 2025.
Why William Barnes is listed
Named as the only individual (Manager of the General Partner of the Issuer) on the Form D for Karman Ventures Fund 1, LP, a $41.6M venture fund (Jun 2025) (6 vehicles on file: 2 funds, 4 SPVs).
Source: SEC Form D: Karman Ventures Fund 1, LP (Jun 10, 2025) · 5 more sources
Is this you? Remove or correct this profile.
- Stages
- Pre-seed, Seed
- Typical check (est.)
- $425K–$1.25M
- Latest fund
- $41.6M · Jun 2025
- Latest dated activity
- Jun 2025
Is William Barnes a fit for you?
See your fit score and the reason, contact details, and any warm path from your network.
What does William Barnes invest in?
SpaceWhat has William Barnes invested in recently?
Funds and deal vehicles William Barnes filed with the SEC
- Jun 2025
Karman Ventures Fund 1, LP
Fund · $41.6M offering
- Feb 2024
Karman Ventures Rocket II, LP
Fund · $5.21M offering
- Feb 2024
Karman Ventures Rocket I, LP
Deal vehicle · $2.94M offering
- Oct 2023
Moving Capital Rocket III, LP
Deal vehicle · $2.01M offering
- Mar 2023
Moving Capital Rocket II, LP
Deal vehicle · $1.47M offering
- Mar 2023
Moving Capital Rocket, LP
Deal vehicle · $580K offering
Sources
- SEC Form D: Karman Ventures Fund 1, LPJun 10, 2025
- SEC Form D: Karman Ventures Rocket II, LPFeb 7, 2024
- SEC Form D: Karman Ventures Rocket I, LPFeb 2, 2024
- SEC Form D: Moving Capital Rocket III, LPOct 6, 2023
- SEC Form D: Moving Capital Rocket II, LPMar 30, 2023
- SEC Form D: Moving Capital Rocket, LPMar 16, 2023
Data refreshed from public sources Oct 15, 2026. Is this you? Remove or correct this profile.