GreyLion is a private equity firm. Based in New York City, United States. Among the 12 companies in the known portfolio are The RealReal, Slip.stream, TickPick, 360training, Alloy Die Casting and Hyphen Solutions.
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Investment focus
- Stage
- GrowthLate-Stage
Who to pitch at GreyLion
GreyLion portfolio companies (12)
- The RealReal
- Slip.stream
- TickPick
- 360training
- Alloy Die Casting
- Hyphen Solutions
- Quick Med Claims
- Slipstream IT
- Birdseye Security Solutions
- Norwood Portable Sawmills
- Torginol
- Webconnex
Co-investors
Funds that share portfolio companies with GreyLion.
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About GreyLion
The firm's listing covers sectors Consumer, FinTech, Hardware and Healthcare, and focus areas Enterprise SaaS, Healthcare Operations, Lower Middle Market and Marketplaces; known deals cluster at Growth and Late-Stage.
Austin Buzzell (Associate) and David Siegel (Advisor) are listed as the contacts to pitch at GreyLion.
Across the known portfolio, 10 co-investors appear alongside GreyLion, including Growth Capital Management, InterWest Partners and Denali Growth Partners.
Frequently asked questions
What is GreyLion?
GreyLion is a private equity firm based in New York City, United States, with a known portfolio of 12 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 GreyLion invest in?
Listed sectors include Consumer, FinTech, Hardware and Healthcare; listed focus areas include Enterprise SaaS, Healthcare Operations, Lower Middle Market and Marketplaces. 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 GreyLion invest at?
The known deals of GreyLion include Growth and Late-Stage 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 GreyLion?
Both people on file at GreyLion are listed as contacts for the firm, each with their own profile page.
How do I contact GreyLion?
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