Ghost Tree Partners is a private equity firm and venture debt provider. Team members are concentrated in Darien, Connecticut, United States. Among the 6 companies in the known portfolio are Embr Labs, Anonos, ConTIPI Medical, Job.com, Position Imaging and Blue Spark Technologies.
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Investment focus
- Stage
- Late-StageSeed
Who to pitch at Ghost Tree Partners
Ghost Tree Partners portfolio companies (6)
- Embr Labs
- Anonos
- ConTIPI Medical
- Job.com
- Position Imaging
- Blue Spark Technologies
Co-investors
Funds that share portfolio companies with Ghost Tree Partners.
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About Ghost Tree Partners
The firm's listing covers focus areas Direct Lending and Private Credit; known deals cluster at Late-Stage and Seed.
Jeff Willardson (Managing Partner) and Mark Fox (Investor) are listed as the contacts to pitch at Ghost Tree Partners.
Across the known portfolio, 6 co-investors appear alongside Ghost Tree Partners, including Aon, IP Investment Partners and Wealthing VC Club.
Frequently asked questions
What is Ghost Tree Partners?
Ghost Tree Partners is a private equity firm and venture debt provider whose team is concentrated in Darien, Connecticut, United States, with a known portfolio of 6 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Ghost Tree Partners invest in?
Listed focus areas include Direct Lending and Private Credit. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Ghost Tree Partners invest at?
The known deals of Ghost Tree Partners include Late-Stage and Seed rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Ghost Tree Partners?
Both people on file at Ghost Tree Partners are listed as contacts for the firm, each with their own profile page.
How do I contact Ghost Tree Partners?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 2 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal