cofounder

noun

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

   “The two cofounders both attended the ceremony.”

   “Miramax Films cofounders Bob and Harvey Weinstein will end their successful, but often tumultuous, 12-year relationship with The Walt Disney Company to launch their own media company.”

   “David Baszucki created it ten years ago along with his cofounder Erik Cassel, and it’s gradually snowballed in popularity, particularly among kids and teenagers.”

   “Maria Ressa, the chief executive and cofounder of Rappler, and Dmitry Muratov, the editor-in-chief of Novaya Gazeta, were named as this year’s laureates by Berit Reiss-Andersen, the chair of the Norwegian Nobel committee.”

   “Details of Thunberg’s charge came as Just Stop Oil said its cofounders, Indigo Rumbelow and Roger Hallam, were arrested on Wednesday morning following dawn raids at their homes.”