 It was based in Southfield, Michigan with operations in several other countries, including Canada, Germany, the United Kingdom, France, Japan, China and Australia.Its business-to-business marketing services included PolkInsight, the National Vehicle Population Profile (NVPP), Blackburn / Polk Marketing Services Inc. (BPMSI), Polk Dealer Marketing Manager, The Ultimate Perspective (T.U.P), Polk Canada Net, Polk Vehicle Lifecycle System, Polk CrossSell Reports, and Polk Total Market Predictor (Polk TMP).From 1999 it was the owner of the vehicle data service Carfax.