Our members: competence & commitment

The IWO members reflect the holistic and systemic approach of our work.

They come from the following areas:

  • Housing industry
  • Property management
  • Energy sector
  • Building and construction supply industry
  • Engineering
  • Urban and district planning
  • State ministries and state institutions
  • Associations and NGOs in the housing and environmental sector
  • Research and educational institutions

Full members



B&O Bau und Gebäudetechnik GmbH & Co. KG




Berlin building and housing cooperative of 1892 eG, Berlin




German Energy Agency GmbH (dena), Berlin




German Association for Housing, Urban and Regional Planning Berlin




EBZ European Training Centre for the Housing and Real Estate Industry |
EBZ Business School - University of Applied Sciences
, Bochum




GdW Bundesverband deutscher Wohnungs- und Immobilienunternehmen e.V. Berlin




Engineering company BBP Bauconsulting mbH, Berlin




insar consult, Berlin




Atnaujinkime miestą (Let’s renovate the city), Vilnius




LUNOS Lüftungstechnik GmbH & Co. KG für Raumluftsysteme, registered office Berlin




Technical University (RPTU) Kaiserslautern-Landau, Chair of Town Planning, Kaiserslautern




BBT Treuhandstelle des Verbandes Berliner und Brandenburgischer Wohnungsunternehmen GmbH, Berlin




Association of Real Estate Managers Germany e.V. (VDIV), Berlin








Knut Höller, Berlin

Thomas Janicki, former Ministerialdirigent (Federal Ministry of Transport, Building and Housing), Berlin

Dirk Lönnecker, Falkensee

Franziska Reute, Berlin

Thomas Ruhland, Attorney at Law, Berlin

Guido Schwarzendahl, Bauverein Halle & Leuna eG, Halle



Supporting members



European Federation for Living (EFL), Amsterdam




Wohnen im Eigentum e.V. Bonn




Thuringian Ministry for Agriculture and Infrastructure, Erfurt




SENIOR EXPERT SERVICE (SES), Erfurt office, represented by the head Friedrich Hermann




Valius Serbenta, Vilnius