Bill Marcus is an angel investor based in Chicago, Illinois, United States. The known portfolio counts 7 companies: Bear Stearns, Fuisz Video, Inc., RYU Apparel, HALO Maritime Defense Systems, AirPatrol Corporation, HedgeCo and Stem Cell Theranostics.
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Investment focus
- Stage
- Seed
Contacts
Bill Marcus portfolio companies (7)
- Bear Stearns
- Fuisz Video, Inc.
- RYU Apparel
- HALO Maritime Defense Systems
- AirPatrol Corporation
- HedgeCo
- Stem Cell Theranostics
Investor Profile
The listing covers sectors Consumer, Hardware, Real Estate and SaaS, and focus areas Construction Tech, Enterprise SaaS, Marketing Tech and Streaming. Startups operating in these areas may find Bill Marcus relevant.
Stage-wise, the known deals cluster around Seed rounds.
The portfolio and focus above give founders context on whether Bill Marcus matches their raise.
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Frequently asked questions
Who is Bill Marcus?
Bill Marcus is an angel investor based in Chicago, Illinois, United States with 7 known investments on file, among them Bear Stearns, Fuisz Video, Inc. and RYU Apparel. The sections above list the sectors and stages attached to that record.
What does Bill Marcus invest in?
Listed sectors include Consumer, Hardware, Real Estate and SaaS; listed focus areas include Construction Tech, Enterprise SaaS, Marketing Tech and Streaming. 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 Bill Marcus invest at?
The known deals of Bill Marcus include 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 Bill Marcus?
An email address, a phone number and a LinkedIn page are on file for Bill Marcus. 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