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Michael Castor: Profile, Experience & Investments | Startup Intros

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MICHAEL CASTOR

Founder, Portfolio Manager and Managing Director at Sio Capital

ActiveFounder Investor

Updated: Apr 2, 2026 ·

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Quick Facts

Role: Founder, Portfolio Manager and Managing Director
Company: Sio Capital
Status: Active
Type: Founder, Investor

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Experience

Founder, Portfolio Manager and Managing DirectorFounderCurrent

Present - Present

Frequently Asked Questions

Who is Michael Castor?

Michael Castor is Founder, Portfolio Manager and Managing Director at Sio Capital.

What companies has Michael Castor founded?

Michael Castor co-founded Sio Capital.