Seth Pearlstein vs Mark O Sullivan compared for founders deciding who to pitch. Stage focus, check size, and sector fit compared side by side.
Seth Pearlstein is a individual/angel based in New York. Mark O Sullivan is a individual/angel based in New York across 70 portfolio companies. Sector focus diverges: Seth Pearlstein concentrates on generalist deals and Mark O Sullivan on Fintech and Proptech. On stage, Seth Pearlstein is active at Series A and Mark O Sullivan at undisclosed stages.
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