Brian Brennan vs Mark O Sullivan

Brian Brennan vs Mark O Sullivan

Brian Brennan is a venture capital based in New York. Mark O Sullivan is a individual/angel based in New York across 70 portfolio companies. Both invest in Fintech, while Brian Brennan also covers adjacent sectors and Mark O Sullivan covers Proptech. On stage, Brian Brennan is active at Growth and Mark O Sullivan at undisclosed stages.

• Investor type: Brian Brennan — Venture Capital; Mark O Sullivan — Individual/Angel
• Headquarters: Brian Brennan — New York; Mark O Sullivan — New York
• Portfolio companies: Brian Brennan — not disclosed; Mark O Sullivan — 70
• Sectors: Brian Brennan — Fintech; Mark O Sullivan — Fintech, Proptech
• Stages: Brian Brennan — Growth; Mark O Sullivan — not disclosed

• Brian Brennan — Venture Capital · New York · Brian Brennan portfolio
• Mark O'Sullivan — Individual/Angel · New York · 70 tracked deals · Mark O Sullivan portfolio

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