Jason Lettmann is an angel investor and operator angel based in Boulder, Colorado, United States with 10 known investments: Cerevance, Atsena Therapeutics, EBR Systems, Carrick Therapeutics, Relievant Medsystems, Second Genome, Vapotherm, Promedior, Ra Pharmaceuticals and Tarsus Medical.
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Investment focus
- Sector
- Healthcare
- Focus
- BiotechClinical TrialsImmuno-OncologyMedTechOncologyPharmaceuticals
Contacts
Jason Lettmann portfolio companies (10)
- Cerevance
- Atsena Therapeutics
- EBR Systems
- Carrick Therapeutics
- Relievant Medsystems
- Second Genome
- Vapotherm
- Promedior
- Ra Pharmaceuticals
- Tarsus Medical
Affiliated funds' portfolios
General Partner at Morgenthaler, whose known portfolio counts 6 companies
- SetPoint Medical
- Moximed
- NuoDB
- Nuvaira
- Relievant Medsystems
- NexTag
Investor Profile
The known portfolio sits in sector Healthcare, and focus areas Biotech, Clinical Trials, Immuno-Oncology and MedTech.
The portfolio and focus above give founders context on whether Jason Lettmann matches their raise.
Colleagues at Morgenthaler
Bob Pavey
Partner
Cleveland, United States
Ralph Christoffersen
Partner & Life Science Team Leader
Boulder, United States
Gary J. Morgenthaler
Partner
Menlo Park, United States
Nassim Usman
Entrepreneur in Residence & Venture Partner
Palo Alto, United States
Gary Little
Partner
Atherton, United States
Robert Bellas
General Partner
Kailua, United States
Spencer Timm
Partner
West Chesterfield, United States
Hank Plain
Partner
Menlo Park, United States
David Morgenthaler
Founding Partner
Cleveland, United States
Paul Brentlinger
Partner
Cleveland, United States
Farrar Daniel
General Partner
Massachusetts, United States
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Frequently asked questions
Who is Jason Lettmann?
Jason Lettmann is an angel investor and operator angel based in Boulder, Colorado, United States with 10 known investments on file, among them Cerevance, Atsena Therapeutics and EBR Systems. The sections above list the sectors and firms attached to that record.
What does Jason Lettmann invest in?
Listed sectors include Healthcare; listed focus areas include Biotech, Clinical Trials, Immuno-Oncology and MedTech. 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 Jason Lettmann listed at?
Jason Lettmann is listed as General Partner at Morgenthaler. 11 other people in the database share a firm with Jason Lettmann.
How do I contact Jason Lettmann?
An email address, a phone number and a LinkedIn page are on file for Jason Lettmann. 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