Soheil Sazesh
Solo GP · Berkeley, California
Named as the only individual (Managing Member of the General Partner of the Issuer) on the Form D for Substance I, LP, a $15M venture fund (Sep 2026).
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why Soheil Sazesh holds a 93/100 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 the only individual (Managing Member of the General Partner of the Issuer) on the Form D for Substance I, LP, a $15M venture fund (Sep 2026).
Building in Technology & Software? See how well your pitch deck matches Soheil Sazesh’s thesis.
Check My Startup FitVerified investment track record
Named as the only individual (Managing Member of the General Partner of the Issuer) on the Form D for Substance I, LP, a $15M venture fund (Sep 2026).
Source: SEC Form D: Substance I, LP (Sep 25, 2026)
- Stages
- Pre-seed, Seed
- Typical check (est.)
- $150K–$450K
- Verified deals
- 1 on file
- Latest activity
- Sep 2026
Is Soheil Sazesh a fit for you?
See your AI startup fit score, verified contact channels, and warm paths through your network.
What sectors does Soheil Sazesh 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.
- Sep 2026
Substance I, LP
Invested through a fund
Public Verification Sources
- SEC Form D: Substance I, LPSep 25, 2026
Data refreshed from SEC filings and public European announcements Oct 15, 2026. Is this you? Correct or remove this profile.
Active Angels Similar to Soheil Sazesh
Founders raising in early stage tech also reach out to these verified check-writers with similar portfolio focus and check sizes.
Individual angel · Paris, France
Solo GP · London, United Kingdom
Syndicate lead · US & Europe
Individual angel · London, United Kingdom
Individual angel · Stockholm, Sweden
Individual angel · Stockholm, Sweden
Raising pre-seed or seed for your startup?
Don’t pitch blindly. Our AI engine evaluates your startup against Soheil Sazesh and 100+ active US & European angels to deliver 3 perfect matches with tailored warm intros and pitch deck reviews.