John T Siegel vs Sean O Sullivan compared for founders deciding who to pitch. Stage focus, check size, and sector fit compared side by side.
John T Siegel is a venture capital based in Alexandria. Sean O Sullivan is a venture capital based in Princeton across 800 portfolio companies. Sector focus diverges: John T Siegel concentrates on generalist deals and Sean O Sullivan on Agtech Food, Artificial Intelligence and Biotech. On stage, John T Siegel is active at undisclosed stages and Sean O Sullivan at Pre Seed.
Investors like John T Siegel · Investors like Sean O Sullivan · John T Siegel co-investors · Full investor directory