Sean Lyons works as a Vice President at Keystone Capital. The firm's known portfolio counts 20 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Vice President at Keystone Capital, whose known portfolio counts 20 companies
- Suiteness
- Vacayo
- Hollywood Stock Exchange
- Brightflow AI
- ClariPi
- Evofem Biosciences
- Adial Pharmaceuticals
- Anypoint Media
- Barkley
- Chartwell Financial Advisory
- Eranovum
- Vrestem
- and 8 more
Investor Profile
The listing covers sectors AI, Climate, Commerce and Consumer, and focus areas Biotech, Clean and Renewable Energy, Cloud Infrastructure and Communications Infrastructure. Startups operating in these areas may find Sean Lyons relevant.
Keystone Capital appears in Late-Stage, Pre-Seed and Seed rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Sean Lyons is worth approaching.
Colleagues at Keystone Capital
Scott Gwilliam
Managing Partner
Chicago, United States
Brian Prendergast
Vice President
Chicago, United States
David Greer
Managing Director
Chicago, United States
Kevin Overby
Principal
Chicago, United States
Bill Sommerschield
Managing Director
Chicago, United States
Jason Van Zant
Managing Director
Chicago, United States
Andrew Wehr
CFO Portfolio Accounting & Finance
Chicago, United States
Todd Lanscioni
Managing Director
Chicago, United States
Erik Gernant
Principal
Chicago, United States
Matt Blanks
Vice President
Chicago, United States
Kincy Gibson
Director
Chicago, United States
Matt DeLong
Principal
Chicago, United States
Frequently asked questions
Who is Sean Lyons?
Sean Lyons is a private equity investor based in Chicago, Illinois, United States, listed as Vice President at Keystone Capital. The known portfolio of that firm counts 20 companies. That portfolio belongs to the firm, not to Sean Lyons personally.
What does Sean Lyons invest in?
Listed sectors include AI, Climate, Commerce and Consumer; listed focus areas include Biotech, Clean and Renewable Energy, Cloud Infrastructure and Communications Infrastructure. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Sean Lyons invest at?
Keystone Capital appears in Late-Stage, Pre-Seed and Seed rounds across its known deals, and Sean Lyons is listed there as Vice President. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Sean Lyons listed at?
Sean Lyons is listed as Vice President at Keystone Capital. 12 other people in the database share a firm with Sean Lyons.
How do I contact Sean Lyons?
A LinkedIn page is on file for Sean Lyons. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal