Charles B. Katz
Syndicate lead · Palo Alto, California
Named as the only individual (promoter) on the Form D for Madison Scientific, a Series of PAA Master Fund, LLC, a $170K venture SPV (Apr 2025).
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why Charles B. Katz holds a 79/100 confidence score
- Verified past startup investments on public record
- Target check sizes calibrated between $170K
- Clear domain thesis in Healthcare
- Named as the only individual (promoter) on the Form D for Madison Scientific, a Series of PAA Master Fund, LLC, a $170K venture SPV (Apr 2025).
Building in Healthcare? See how well your pitch deck matches Charles B. Katz’s thesis.
Check My Startup FitVerified investment track record
Named as the only individual (promoter) on the Form D for Madison Scientific, a Series of PAA Master Fund, LLC, a $170K venture SPV (Apr 2025).
Source: SEC Form D: Madison Scientific, a Series of PAA Master Fund, LLC (Apr 3, 2025)
- Stages
- Series A
- Typical check (est.)
- $170K
- Verified deals
- 1 on file
- Latest activity
- Apr 2025
Is Charles B. Katz a fit for you?
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What sectors does Charles B. Katz back?
HealthcareVerified investments & deal activity
1 deal trackedRecent startup investments, syndicate rounds, and public co-investments across the US and Europe.
- Apr 2025
Madison Scientific
Through an SPV syndicate · IL
Public Verification Sources
Data refreshed from SEC filings and public European announcements Oct 15, 2026. Is this you? Correct or remove this profile.
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