Matt DeLong is a Principal at Keystone Capital, whose known portfolio counts 20 companies.
Is Matt DeLong a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
Contacts
Affiliated funds' portfolios
Principal 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
Matt DeLong is listed against sectors AI, Climate, Commerce and Consumer, and focus areas Biotech, Clean and Renewable Energy, Cloud Infrastructure and Communications Infrastructure in the database.
Stage-wise, the deals at Keystone Capital cluster around Late-Stage, Pre-Seed and Seed rounds.
What the affiliated firm has backed is the closest available signal on whether Matt DeLong 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
Sean Lyons
Vice President
Chicago, United States
Kincy Gibson
Director
Chicago, United States
Frequently asked questions
Who is Matt DeLong?
Matt DeLong is a private equity investor based in Chicago, Illinois, United States, listed as Principal at Keystone Capital. The known portfolio of that firm counts 20 companies. That portfolio belongs to the firm, not to Matt DeLong personally.
What does Matt DeLong 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 Matt DeLong invest at?
Keystone Capital appears in Late-Stage, Pre-Seed and Seed rounds across its known deals, and Matt DeLong is listed there as Principal. 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 Matt DeLong listed at?
Matt DeLong is listed as Principal at Keystone Capital. 12 other people in the database share a firm with Matt DeLong.
How do I contact Matt DeLong?
A LinkedIn page is on file for Matt DeLong. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal