Memberships & engagement

Our memberships

  • Bundesverband WärmePumpe e.V. (BWP)
  • Deutsche Unternehmensinitiative Energieeffizienz e.V. (DENEFF)
  • DWA Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall e.V.
  • Güteschutz Kanalbau e.V.
  • Handwerkskammer Konstanz
  • IKT - Institut für Unterirdische Infrastruktur gGmbH
  • Industrie- und Handelskammer Schwarzwald-Baar-Heuberg
  • Verein für die Präqualifikation von Bauunternehmen e.V.

Our engagement

  • Inline sports: Inline sports is a popular sport for every age range. With the building of the arena in Geisingen, we have given this sport another home. Athletes from around the world are welcome here and enrich the region as athletes, citizens, and tourists. Plan International: Plan International is a children’s aid organization that is active in over 70 countries and that fights child poverty. We have been engaged in certain projects and campaigns for this organization for several years.