William Lehmann
Solo GP · Boston, Massachusetts
Named as the only individual (Manager of the General Partner of the Issuer) on the Form D for Step Function Ventures Fund I LP, a $20M venture fund (Jun 2023).
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why William Lehmann holds a 76/100 confidence score
- Verified past startup investments on public record
- Target check sizes calibrated between $200K–$600K
- Cross-sector early stage track record
- Named as the only individual (Manager of the General Partner of the Issuer) on the Form D for Step Function Ventures Fund I LP, a $20M venture fund (Jun 2023).
Building in Technology & Software? See how well your pitch deck matches William Lehmann’s thesis.
Check My Startup FitVerified investment track record
Named as the only individual (Manager of the General Partner of the Issuer) on the Form D for Step Function Ventures Fund I LP, a $20M venture fund (Jun 2023).
Source: SEC Form D: Step Function Ventures Fund I LP (Jun 30, 2023)
- Stages
- Pre-seed, Seed
- Typical check (est.)
- $200K–$600K
- Verified deals
- 1 on file
- Latest activity
- Jun 2023
Is William Lehmann a fit for you?
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What sectors does William Lehmann back?
Sector focus not yet verifiedVerified investments & deal activity
1 deal trackedRecent startup investments, syndicate rounds, and public co-investments across the US and Europe.
- Jun 2023
Step Function Ventures Fund I LP
Invested through a fund
Public Verification Sources
- SEC Form D: Step Function Ventures Fund I LPJun 30, 2023
Data refreshed from SEC filings and public European announcements Oct 15, 2026. Is this you? Correct or remove this profile.
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