Stadtwerke Heilbronn (Heilbronn city works) manages and operate the Am Bollwerksturmund Experimenta parking garage, the Soleo and Biberach indoor pools, the Neckarhalde, Gesundbrunnen and Kirchhausen swimming pools and the Knorr Arena ice rink, the home of the Heilbronner Falken.

They also operate the Old Waterworks (Alte Wasserwerk, a heritage site) and the Heilbronn industrial and port railway (Industrie- und Hafenbahn Heilbronn) in Heilbronn’s port and the Neckar industrial area.

Heilbronn Transport (Verkehrsbetriebe Heilbronn) operates a city bus network of eleven routes in the city of Heilbronn and the municipality of Flein and the Heilbronn Stadtbahn in the city centre.

Stadtwerke is the sole shareholder of the Beteiligungsgesellschaft Stadt Heilbronn mbH (City Heilbronn holding company) and owns 74.9% of Heilbronner Versorgungs GmbH.

The remaining 25.1% is held by EnBW.