共きょう同どう創そう立りつ者しゃ

Meanings

1

Refers to a person who jointly establishes an organization, company, or movement with others.

彼かれはその会かい社しゃの共きょう同どう創そう立りつ者しゃの一人ひとりです。
He is one of the co-founders of the company.