Gideon Valkin vs Mark O Sullivan compared for founders deciding who to pitch. Stage focus, check size, and sector fit compared side by side.
Gideon Valkin is a venture capital based in London. Mark O Sullivan is a individual/angel based in New York across 70 portfolio companies. Both invest in Fintech, while Gideon Valkin also covers Artificial Intelligence and Mark O Sullivan covers Proptech. On stage, Gideon Valkin is active at Pre Seed and Mark O Sullivan at undisclosed stages.
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