Privately held Townsquare Media intends to file for an initial public offering of stock to the public.
The radio group told the Securities & Exchange Commission that the number of shares to be offered and the price range for the offering have not yet been determined.
The company hopes to raise approximately $148 million.
Townsquare owns 312 radio stations and 325 local websites; it operates in 66 small- to medium-size markets.