For other uses, see Dunder Mifflin (disambiguation) Dunder-Mifflin Paper Company (also known as Dunder-Mifflin, Inc.) is a fictional paper company in the television series The Office. The Scranton, Pennsylvania Branch of Dunder-Mifflin serves as the main setting for the series. The company was founded by Robert Dunder and Robert Mifflin. The stock symbol is DMI.