| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | Schütte Immobilien Wolfgang Schütte | Real estate association | 0 |
| 2 | Schwelmer & Soziale Wohnungsbaugenossenschaft eG | Real estate association | 0 |
| 3 | Sedaf Transaction | Real estate association | 1 |
| 4 | SHBE European Real Estate Circles | Real estate association | 0 |
| 5 | Silverman | Real estate association | 1 |
| 6 | SIPA | Real estate association | 0 |