John Rex is an angel investor based in Wellesley Hills, Massachusetts, United States with 3 known investments: Adenium Biotech ApS, FDA and U.S. Department of Health and Human Services.
Is John Rex a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Sector
- Healthcare
Contacts
John Rex portfolio companies (3)
- Adenium Biotech ApS
- FDA
- U.S. Department of Health and Human Services
Affiliated funds' portfolios
Consultant and Operating Partner at Advent Life Sciences, whose known portfolio counts 9 companies
- Glycomine
- Moximed
- Beacon Therapeutics
- Epitopea
- Cyted
- Artax Biopharma
- Relief Cardiovascular
- Curve Therapeutics
- Arga Medtech
Investor Profile
The listing covers sector Healthcare, and focus areas Biotech, Clinical Trials, Drug Development and Drug Discovery. Startups operating in these areas may find John Rex relevant.
The portfolio and focus above give founders context on whether John Rex matches their raise.
Colleagues at Advent Life Sciences
Alain Huriez
Venture Partner
Paris, France
Kaasim Mahmood
General Partner
London, United Kingdom
Shahzad Malik
General Partner
London, United Kingdom
Alan Walts
Venture Partner
Suffolk County, United States
Don Drakeman
Venture Partner
Princeton, United States
Dominic Schmidt
General Partner
London, United Kingdom
Satish Jindal
General Partner
Cambridge, United States
Philomena Lip
Principal
United Kingdom
Similar investors
Showing 20 of 100
Roger Jeffs
angel investor and operator angel
Raleigh, United States
Rex Burgdorfer
Investment Committee
Chicago, United States
Chris Jackson
angel investor and operator angel
New York, United States
John Reed
angel investor
Virginia Beach, United States
John Evans
angel investor and operator angel
Cambridge, United States
Alan Parnham
angel investor and operator angel
Southport, Australia
Jeffrey Roh
angel investor and operator angel
Seattle, United States
John Roselli
operator angel
Winnetka, United States
Jack Kraeutler
operator angel
Cincinnati, United States
Frederick Jones
angel investor
Wayne, United States
Fred Khosravi
angel investor and operator angel
Campbell, United States
Keith Valentine
angel investor and operator angel
San Diego, United States
David Jin
angel investor
New York, United States
Barbara Lubash
angel investor
Orange County, United States
Anthony Lawrence
angel investor
Singapore
David Wiersma
angel investor
Tucson, United States
Andy Jane
angel investor and operator angel
Brisbane, Australia
Bernie Rudnick
Co-Founder
Newark, United States
Rajesh Adhikari
angel investor and operator angel
South Delhi, India
Yury Kukushkin
angel investor
Boston, United States
Frequently asked questions
Who is John Rex?
John Rex is an angel investor based in Wellesley Hills, Massachusetts, United States with 3 known investments on file, among them Adenium Biotech ApS, FDA and U.S. Department of Health and Human Services. The sections above list the sectors and firms attached to that record.
What does John Rex invest in?
Listed sectors include Healthcare; listed focus areas include Biotech, Clinical Trials, Drug Development and Drug Discovery. 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.
Which firm is John Rex listed at?
John Rex is listed as Consultant and Operating Partner at Advent Life Sciences. 8 other people in the database share a firm with John Rex.
How do I contact John Rex?
A LinkedIn page is on file for John Rex. 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