Under the motto "the most hits - the best mix", Radio Regenbogen is the most frequently listened to private broadcaster in Baden-Württemberg. The range covers Baden, parts of Württemberg and the entire Rhine valley from Frankfurt to Basel, the Palatinate, Alsace, and the northern part of Switzerland. Radio Regenbogen broadcasts from studios in Mannheim, Karlsruhe, Offenburg, and Freiburg.
Radio Regenbogen is in turn involved in around 48.5% of the up-and-coming youth radio station bigFM with studios in Stuttgart and Mannheim.
bigFM, "the new beat", reaches young target groups in Baden-Württemberg and the Palatinate. There is a production and marketing cooperation between Radio Regenbogen and bigFM.