| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 | ASPLA (Plásticos Españoles S.A.) | construction association | 0 |
| 2 | Bauindustrieverband Nordrhein-Westfalen e.V. | construction association | 0 |
| 3 | David McLean (Holdings) Ltd. | construction association | 0 |
| 4 | Deutscher Verband der Projektmanager in der Bau- und Immobilienwirtschaft e. V. (DVP) | construction association | 0 |
| 5 | Grupo Chartwell | construction association | 3 |
| 6 | Grupo Industrial Gutiérrez de Velasco | construction association | 0 |
| 7 | Rodobens Negócios Imobiliários | construction association | 0 |
| 8 | Zentralverband Deutsches Baugewerbe | construction association | 0 |