Sean Brennan vs Mark O Sullivan

Sean Brennan vs Mark O Sullivan

Sean Brennan is a individual/angel based in West Des Moines. Mark O Sullivan is a individual/angel based in New York across 70 portfolio companies. Sector focus diverges: Sean Brennan concentrates on generalist deals and Mark O Sullivan on Fintech and Proptech.

• Investor type: Sean Brennan — Individual/Angel; Mark O Sullivan — Individual/Angel
• Headquarters: Sean Brennan — West Des Moines; Mark O Sullivan — New York
• Portfolio companies: Sean Brennan — not disclosed; Mark O Sullivan — 70
• Sectors: Sean Brennan — not disclosed; Mark O Sullivan — Fintech, Proptech

• Sean Brennan — Individual/Angel · West Des Moines · Sean Brennan portfolio
• Mark O'Sullivan — Individual/Angel · New York · 70 tracked deals · Mark O Sullivan portfolio

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