sponsor

Noun

• an advocate who presents a person (as for an award or a degree or an introduction etc.)

• someone who supports or champions something

Verb

• do one's shopping at; do business with; be a customer or client of

• assume responsibility for or leadership of
  • The senator announced that he would sponsor the health care plan
    

• assume sponsorship of

Related words

• Synonyms: 
  presenter , patron , supporter , patronize , patronise , shop , shop at , buy at , frequent