(transitive) To found at the same time as another. / (transitive) To found with one or more other people.

simple past tense and past participle of cofound

Founded at the same time as another, or by two or more people.

plural of cofounder

Third-person singular simple present indicative form of cofound

present participle of cofound

A joint founder; one of several people involved with the creation of a business, organization, union, or entity.

plural of cofoundress

A female cofounder.