A person who institutes something

plural of instituter

In a way that conforms to an institution.

Tending or intended to institute; having the power to establish. / Established; depending on, or characterized by, institution or order.

(business) Pertaining to business-to-business activities of commercial organizations serving institutions such as schools, organizations, and churches with products and/or services.

plural of mental institution

plural of correctional institution

plural of financial institution

plural of academic institution

plural of educational institution