Jay Rosenzweig is an angel investor and operator angel based in Toronto, Ontario, Canada with 6 known investments: Exowatt, CoPower, MediSeen, Physera, Quris AI and Werk.co.
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Investment focus
- Stage
- Seed
Contacts
Jay Rosenzweig portfolio companies (6)
- Exowatt
- CoPower
- MediSeen
- Physera
- Quris AI
- Werk.co
Affiliated funds' portfolios
Venture Partner at Rebalance Capital, whose known portfolio counts 7 companies
- Circle
- Summer
- Micruity
- CNote
- Vexi
- YellowBird
- HoneyBee
Investor Profile
The known portfolio sits in sectors AI, Climate, Energy and FinTech, and focus areas Biotech, Clean Energy, Digital Health and HR Tech.
Jay Rosenzweig appears in Seed rounds across the known deals.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues at Rebalance Capital
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Frequently asked questions
Who is Jay Rosenzweig?
Jay Rosenzweig is an angel investor and operator angel based in Toronto, Ontario, Canada with 6 known investments on file, among them Exowatt, CoPower and MediSeen. The sections above list the sectors, stages and firms attached to that record.
What does Jay Rosenzweig invest in?
Listed sectors include AI, Climate, Energy and FinTech; listed focus areas include Biotech, Clean Energy, Digital Health and HR Tech. 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 Jay Rosenzweig invest at?
The known deals of Jay Rosenzweig 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.
Which firm is Jay Rosenzweig listed at?
Jay Rosenzweig is listed as Venture Partner at Rebalance Capital. 2 other people in the database share a firm with Jay Rosenzweig.
How do I contact Jay Rosenzweig?
An email address, a phone number and a LinkedIn page are on file for Jay Rosenzweig. 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