An angel investor and operator angel based in Miami, Florida, United States, Ken Griffin has 8 known investments: X-energy, DayOne, Cohesion, Pacific Fusion, Medici, Ignite Reading, National Air and Space Museum and Forest Neurotech.
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Investment focus
- Focus
- Digital HealthIoT
Contacts
Ken Griffin portfolio companies (8)
- X-energy
- DayOne
- Cohesion
- Pacific Fusion
- Medici
- Ignite Reading
- National Air and Space Museum
- Forest Neurotech
Affiliated funds' portfolios
Founder at Citadel, whose known portfolio counts 11 companies
- Epic Games
- Nscale
- Flash Coffee
- Texas Stock Exchange
- Edgewise Therapeutics
- Arvinas
- Quant
- Rezolve
- Avianca Holdings
- Kijiji Hub
- Yellowbrick Data
Investor Profile
The known portfolio sits in sectors FinTech, Hardware, Healthcare and SaaS, and focus areas Digital Health and IoT.
Ken Griffin appears in Pre-Seed and Seed rounds across the known deals.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues at Citadel
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Sarah N.
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Frequently asked questions
Who is Ken Griffin?
Ken Griffin is an angel investor and operator angel based in Miami, Florida, United States with 8 known investments on file, among them X-energy, DayOne and Cohesion. The sections above list the sectors, stages and firms attached to that record.
What does Ken Griffin invest in?
Listed sectors include FinTech, Hardware, Healthcare and SaaS; listed focus areas include Digital Health and IoT. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Ken Griffin invest at?
The known deals of Ken Griffin include Pre-Seed and Seed rounds. 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 Ken Griffin listed at?
Ken Griffin is listed as Founder at Citadel. 9 other people in the database share a firm with Ken Griffin.
How do I contact Ken Griffin?
An email address, a phone number and a LinkedIn page are on file for Ken Griffin. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal