Songyee Yoon
Solo GP · Menlo Park, California
Named as the only individual (Managing Member of the General Partner) on the Form D for Principal Venture Partners, L.P., a $100M venture fund (Feb 2026) (2 vehicles on file: 1 fund, 1 SPV).
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why Songyee Yoon holds a 82/100 confidence score
- Verified active check-writing activity within the last 12 months
- Target check sizes calibrated between $1M–$3M
- Clear domain thesis in AI & ML, Developer Tools
- Named as the only individual (Managing Member of the General Partner) on the Form D for Principal Venture Partners, L.P., a $100M venture fund (Feb 2026) (2 vehicles on file: 1 fund, 1 SPV).
Building in AI & ML, Developer Tools? See how well your pitch deck matches Songyee Yoon’s thesis.
Check My Startup FitVerified investment track record
Named as the only individual (Managing Member of the General Partner) on the Form D for Principal Venture Partners, L.P., a $100M venture fund (Feb 2026) (2 vehicles on file: 1 fund, 1 SPV).
Source: SEC Form D: Principal Venture Partners, L.P. (Feb 20, 2026) · 1 more source
- Stages
- Seed, Series A
- Typical check (est.)
- $1M–$3M
- Verified deals
- 1 on file
- Latest activity
- Feb 2026
Is Songyee Yoon a fit for you?
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What sectors does Songyee Yoon back?
AI & MLDeveloper ToolsVerified investments & deal activity
1 deal trackedRecent startup investments, syndicate rounds, and public co-investments across the US and Europe.
- Sep 2024
Principal Venture Partners, L.P.
Invested through a fund
Public Verification Sources
- SEC Form D: Principal Venture Partners, L.P.Feb 20, 2026
- SEC Form D: Principal-U LLCMay 1, 2024
Data refreshed from SEC filings and public European announcements Oct 15, 2026. Is this you? Correct or remove this profile.
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