Jeffrey Rosen is an angel investor and operator angel based in San Francisco, California, United States. The known portfolio counts 2 companies: Awesomic and Mayhem.
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Investment focus
Contacts
Jeffrey Rosen portfolio companies (2)
- Awesomic
- Mayhem
Investor Profile
The listing covers sectors Commerce and Consumer, and focus areas E-Commerce, Gaming and Media. Startups operating in these areas may find Jeffrey Rosen relevant.
Jeffrey Rosen appears in Pre-Seed and Seed rounds across the known deals.
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Frequently asked questions
Who is Jeffrey Rosen?
Jeffrey Rosen is an angel investor and operator angel based in San Francisco, California, United States with 2 known investments on file, among them Awesomic and Mayhem. The sections above list the sectors and stages attached to that record.
What does Jeffrey Rosen invest in?
Listed sectors include Commerce and Consumer; listed focus areas include E-Commerce, Gaming and Media. 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 Jeffrey Rosen invest at?
The known deals of Jeffrey Rosen 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.
How do I contact Jeffrey Rosen?
An email address and a LinkedIn page are on file for Jeffrey Rosen. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal