patron
US /ˈpeɪ.trən/
UK /ˈpeɪ.trən/

1.
a person who gives financial or other support to a person, organization, cause, or activity
:
•
The library relies on the generous support of its patrons.
•
She is a well-known patron of the arts.
a person who gives financial or other support to a person, organization, cause, or activity