John Amster is an angel investor and operator angel based in New Preston, Connecticut, United States with one known investment, TurboPatent.
Is John Amster a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Focus
- Consumer InternetEnterprise SaaSPatent Investments
Contacts
John Amster portfolio company (1)
- TurboPatent
Investor Profile
The listing covers sectors Consumer, Hardware and SaaS, and focus areas Consumer Internet, Enterprise SaaS and Patent Investments. Startups operating in these areas may find John Amster relevant.
The portfolio and focus above give founders context on whether John Amster matches their raise.
Similar investors
Showing 20 of 100
Jim Armstrong
Managing Director
Manhattan Beach, United States
Ammar Amdani
Co-Founder
United States
John W. James III
angel investor and operator angel
Philadelphia, United States
JR Johnson
angel investor and operator angel
Manhattan Beach, United States
Jarl Mohn
angel investor and operator angel
Los Angeles, United States
John Henry
angel investor and operator angel
Miami, United States
David Johnson
angel investor
Muskegon, United States
John Bonten
angel investor and operator angel
Amsterdam, Netherlands
John LeVert
angel investor
Chicago, United States
Demetrio D'Ambrosi
angel investor
Kirkland, United States
Amit Ghorawat
angel investor and operator angel
Palo Alto, United States
Tom Eggert
angel investor and operator angel
Madison, United States
Jason Johnson
angel investor and operator angel
San Francisco, United States
Johannis Hatt
Founder - CEO
Berlin, Germany
Dallas Johnson
angel investor
Denver, United States
James Parton
angel investor and operator angel
Cambridge, United Kingdom
Tom Arrix
angel investor and operator angel
New York City, United States
Jack Altman
Managing Partner
San Francisco, United States
John Keister
angel investor and operator angel
Los Angeles, United States
Jared Green
President & CEO
South Orange, United States
Frequently asked questions
Who is John Amster?
John Amster is an angel investor and operator angel based in New Preston, Connecticut, United States with one known investment on file, TurboPatent. The sections above list the sectors attached to that record.
What does John Amster invest in?
Listed sectors include Consumer, Hardware and SaaS; listed focus areas include Consumer Internet, Enterprise SaaS and Patent Investments. 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.
How do I contact John Amster?
A LinkedIn page is on file for John Amster. 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 6 September 2026 · How this data is built · Report a correction or request removal