1. a person who establishes an organization, company, or institution together with one or more other people

Examples

• She was the cofounder of the tech startup that revolutionized online shopping.
• The museum’s cofounder donated his entire art collection to the institution.
• As cofounder of the charity, he helped raise millions for education programs.
• The two cofounders met in college and started their business in a garage.
• Apple’s cofounders Steve Jobs and Steve Wozniak changed the computer industry forever.
• The nonprofit’s cofounder spoke at the fundraising event last night.