noun:a person or company that produces books, magazines, etc.
noun:one that 'publishes' something
Examples
He submitted the manuscript to 'publishers' of children's books.
Movie quotes
(..) More background on Hyde. Went to Princeton on a scholarship, graduated summa cum laude. Smart guy. Worked for publishers in New York and Chicago before S.I.P. What else? We tracked down an ex-assistant. (..)