88% of the founders of startups for ventures, some of which end up being exactly zero, Wharton researchers and the University of Zurich found. They analyzed 157,669 American startups and 248,454 founders between 1987 and 2025. Usually, there are three reasons: the company was closed, when the sale of all the money was taken by investors with priority rights or until the founder himself almost does not own the business. @ecotopor.