Sean Mahsoul is an angel investor based in San Francisco, California, United States. The known portfolio is one company, Maplerad.
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Investment focus
Contacts
Sean Mahsoul portfolio company (1)
- Maplerad
Affiliated funds' portfolios
Founding Partner and Investor at Polymath Capital, whose known portfolio counts 9 companies
- Oyster
- Switchboard
- Joro
- Integrated Biosciences
- Maplerad
- Ozone
- Aqua Voice
- Aidaly
- Vienna Hypertext
Investor Profile
The known portfolio sits in sectors FinTech and SaaS, and focus areas Biotech, Enterprise SaaS and Longevity.
Sean Mahsoul is listed for Pre-Seed and Seed rounds in the database.
The portfolio and focus above give founders context on whether Sean Mahsoul matches their raise.
Colleagues at Polymath Capital
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Frequently asked questions
Who is Sean Mahsoul?
Sean Mahsoul is an angel investor based in San Francisco, California, United States with one known investment on file, Maplerad. The sections above list the sectors, stages and firms attached to that record.
What does Sean Mahsoul invest in?
Listed sectors include FinTech and SaaS; listed focus areas include Biotech, Enterprise SaaS and Longevity. 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 Sean Mahsoul invest at?
The database lists Sean Mahsoul for 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.
Which firm is Sean Mahsoul listed at?
Sean Mahsoul is listed as Founding Partner and Investor at Polymath Capital. 2 other people in the database share a firm with Sean Mahsoul.
How do I contact Sean Mahsoul?
An email address and a LinkedIn page are on file for Sean Mahsoul. 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 5 September 2026 · How this data is built · Report a correction or request removal