From Longman Business Dictionaryrating agencyˈrating ˌagency (also ratings agency) FINANCEORGANIZATIONSan independent organization that calculates the risk of investing in or lending to a company and gives it a rating based on this. Examples of rating agencies are Moody’s and Standard & PoorsThe ratings agency lowered the fund’s rating to triple-B-plus from single-A-minus. → agency