Русско-англо-русский юридический словарь

An advertising agency, often referred to as a creative agency or an ad agency, is a business dedicated to creating, planning, and handling advertising and sometimes other forms of promotion and marketing for its clients. (Wikipedia)

An earlier version of this obituary misspelled part of the name of a company that was a client of Mr. Greene’s advertising agency, Wells Rich Greene. (The New York Times)