The World's Top 750 Family Businesses (March 2020)Family Capital with the support of PWC compiled the 750 ranking (by revenue) through extensive research of publicly available sources.In order to qualify for the ranking, the family or group of families would have to control at least 50% of the voting shares in a privately held company and at least 32% of the voting rights in a publicly listed company.To be considered a family business, Family Capital has selected only companies that are 20 years (from June 2018) and older.