Samuel Phineas Upham
Syndicate lead · Claremont, New Hampshire
Named as the only individual (Managing Member of Issuer's General Partner) on the Form D for Haymaker SPV Dyo, LP, a $5M venture SPV (Aug 2026).
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why Samuel Phineas Upham holds a 93/100 confidence score
- Verified active check-writing activity within the last 12 months
- Target check sizes calibrated between $5M
- Cross-sector early stage track record
- Named as the only individual (Managing Member of Issuer's General Partner) on the Form D for Haymaker SPV Dyo, LP, a $5M venture SPV (Aug 2026).
Building in Technology & Software? See how well your pitch deck matches Samuel Phineas Upham’s thesis.
Check My Startup FitVerified investment track record
Named as the only individual (Managing Member of Issuer's General Partner) on the Form D for Haymaker SPV Dyo, LP, a $5M venture SPV (Aug 2026).
Source: SEC Form D: Haymaker SPV Dyo, LP (Aug 20, 2026)
- Stages
- Pre-seed, Seed
- Typical check (est.)
- $5M
- Verified deals
- 1 on file
- Latest activity
- Aug 2026
Is Samuel Phineas Upham a fit for you?
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What sectors does Samuel Phineas Upham 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.
- Aug 2026
Dyo
Deal vehicle; company not disclosed
Public Verification Sources
- SEC Form D: Haymaker SPV Dyo, LPAug 20, 2026
Data refreshed from SEC filings and public European announcements Oct 15, 2026. Is this you? Correct or remove this profile.
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