Alexander Duff
Solo GP · Orinda, California
Named as one of two individuals (Manager of the General Partner of the Issuer) on the Form D for Fortius Ventures Fund II, LP, a venture fund (Nov 2025) (2 vehicles on file).
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why Alexander Duff holds a 86/100 confidence score
- Verified active check-writing activity within the last 12 months
- Target check sizes calibrated between $150K–$450K
- Cross-sector early stage track record
- Named as one of two individuals (Manager of the General Partner of the Issuer) on the Form D for Fortius Ventures Fund II, LP, a venture fund (Nov 2025) (2 vehicles on file).
Building in Technology & Software? See how well your pitch deck matches Alexander Duff’s thesis.
Check My Startup FitVerified investment track record
Named as one of two individuals (Manager of the General Partner of the Issuer) on the Form D for Fortius Ventures Fund II, LP, a venture fund (Nov 2025) (2 vehicles on file).
Source: SEC Form D: Fortius Ventures Fund II, LP (Nov 25, 2025) · 1 more source
- Stages
- Pre-seed, Seed
- Typical check (est.)
- $150K–$450K
- Verified deals
- 2 on file
- Latest activity
- Nov 2025
Is Alexander Duff a fit for you?
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What sectors does Alexander Duff back?
Sector focus not yet verifiedVerified investments & deal activity
2 deals trackedRecent startup investments, syndicate rounds, and public co-investments across the US and Europe.
Public Verification Sources
- SEC Form D: Fortius Ventures Fund II, LPNov 25, 2025
- SEC Form D: Fortius Ventures Fund I, LPSep 22, 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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