An angel investor and operator angel based in Boston, Massachusetts, United States, J. Robert Geiman has one known investment, Just Sing It.
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Investment focus
Contacts
J. Robert Geiman portfolio company (1)
- Just Sing It
Affiliated funds' portfolios
Member Board of Directors at SeaAhead, whose known portfolio counts 10 companies
- Secro
- Starboard Maritime Intelligence
- CSignum
- Wittaya Aqua
- Biotic Circular Technologies
- BlueTrace
- Natrx
- Crewless Marine
- Marinas Bio
- Pure Ocean Algae
Investor Profile
Founders in the listed sector Consumer, and focus areas Media and Music will recognize the pattern in this portfolio.
J. Robert Geiman is listed for Seed rounds in the database.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues at SeaAhead
Owen Johnson
Senior Advisor
Boston, United States
Erik Jarnryd
Investor
Boston, United States
Alexandra Remar
Investor
United States
Sean Laverty
Investment Associate
Boston, United States
Alissa Peterson
Investor
Boston, United States
Donna Hazard
Board Member and General Partner
Boston, United States
Edward Cesare
Venture Partner
New York City, United States
Stefan Hatvany
Member
Nosara, Costa Rica
Rosanne Riddick
Affiliated
Atkinson, United States
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Frequently asked questions
Who is J. Robert Geiman?
J. Robert Geiman is an angel investor and operator angel based in Boston, Massachusetts, United States with one known investment on file, Just Sing It. The sections above list the sectors, stages and firms attached to that record.
What does J. Robert Geiman invest in?
Listed sectors include Consumer; listed focus areas include Media and Music. 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 J. Robert Geiman invest at?
The database lists J. Robert Geiman for 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 J. Robert Geiman listed at?
J. Robert Geiman is listed as Member Board of Directors at SeaAhead. 9 other people in the database share a firm with J. Robert Geiman.
How do I contact J. Robert Geiman?
An email address, a phone number and a LinkedIn page are on file for J. Robert Geiman. 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