| aurelis Real Estate |
| Barings Real Estate |
| BBE Handelsberatung/IPH |
| BVT Unternehmensgruppe |
| Deka Immobilien Investment |
| Deutsche Bank Bauspar |
| Deutsche Finance Group |
| DIC Asset AG |
| DNL |
| ECE |
| Empira AG |
| Fahrländer Partner AG |
| Garbe Group |
| GEG German Estate Group |
| GRR AG |
| Habona Invest |
| Hahn Gruppe |
| HEP Vertrieb GmbH |
| Immac |
| Instone Real Estate |
| Ökorenta |
| Project Gruppe |
| publity AG |
| RAG Montan Immobilien |
| Ratisbona |
| Real I.S. AG |
| Real I.S. AG |
| Sonae Sierra |
| Union Investment |
| vdp Research |
| Voigt & Coll. / Green Office |
| Wealth Cap |
| Xolaris |
| ZBI Zentral Boden Immobilien AG |
