benefactor
//ˈbɛnɪˌfæktər//
Noun
benefactorSingular
benefactorsPlural
1
A person who gives money or other help to a person or cause, especially a charitable donation.
A generous benefactor donated a large sum to the hospital.
2
A person who supports or sponsors an institution, organization, or individual, often through financial contributions.
The museum's benefactor donated a large sum to fund the new exhibition.