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| | Ruhrbahn GmbH | 45479 Mülheim an der Ruhr |
| | August Reiners Bauunternehmung GmbH | 38104 Braunschweig |
| | BELFOR Deutschland GmbH | 85375 Neufahrn bei Freising |
| | BELFOR Deutschland GmbH | 83075 Bad Feilnbach |
| | GRÖTZ GmbH & Co. KG | 68219 Mannheim |
| | Zeppelin Rental GmbH | Berlin |
| | HOCHTIEF Infrastructure GmbH | Essen, D-PLZ 2, D-PLZ 4, D-PLZ 5, D-PLZ 6, D-PLZ 8 |
| | HOCHTIEF Infrastructure GmbH | Essen, D-PLZ 2, D-PLZ 4, D-PLZ 5, D-PLZ 6, D-PLZ 8 |
| | HOCHTIEF Infrastructure GmbH | Eassen, D-PLZ 2, D-PLZ 4, D-PLZ 5, D-PLZ 6, D-PLZ 8 |
| | HOCHTIEF Infrastructure GmbH | Essen, D-PLZ 2, D-PLZ 4, D-PLZ 5, D-PLZ 6, D-PLZ 8 |
| | HOCHTIEF Infrastructure GmbH | Essen, D-PLZ 2, D-PLZ 4, D-PLZ 5, D-PLZ 6, D-PLZ 8 |
| | HOCHTIEF Infrastructure GmbH | Essen, D-PLZ 2, D-PLZ 4, D-PLZ 5, D-PLZ 6, D-PLZ 8 |
| | HOCHTIEF Infrastructure GmbH/Building | Erfurt |
| | Herchenbach Industrial Buildings GmbH | Hennef |
| | HOCHTIEF Infrastructure GmbH | Essen |