There are numerous significant companies in waste, waste water, and exhaust air treatment in Baden-Württemberg.
With Allweiler AG, Mall GmbH and Eisenmann Maschinenbau KG, important German manufacturers of these technologies call Baden-Württemberg their home. And international companies, such as the DISA Group, one of the world's largest manufacturers of air-pollution-control systems, have also established themselves in the state.
Besides the system producers, leading German service-providers, such as U-Plus Umweltservice AG or RWE Umwelt AG, have important locations in Baden-Württemberg.