| Apcoa Autoparking GmbH | Park space management |
| Bechtle Logistik & Service GmbH | IT |
| CANCOM IT Systeme AG | IT |
| Commerzbank | Bank |
| Dr. Schnell Chemie | Chemical industry |
| Euregio Klinik | Hospital |
| FC Schalke 04 | Soccer Club |
| FSV Mainz 05 | Soccer Club |
| Gölzner Sicherheitstechnik GmbH | Security |
| Hallhuber GmbH | Fashion |
| Hamburger Hochbahn | Transport |
| Inform, Institut für Operations Research und Management | IT |
| Jugendsozialwerk Nordhausen e.V. | Social Office |
| KUKA Systems GmbH | Industry |
| Luigi Lavazza Deutschland GmbH | Coffee |
| Mack Rides GmbH & CO KG | Amusement park attractions |
| Netways GmbH | IT |
| Otto Friedrich Universität Bamberg | University |
| Porsche AG | Car manufacturer |
| Proctor & Gamble | Multinational Consumer Goods |
| SWG Stadt- und Wohnbau GmbH, Schweinfurt | Residential building |
| Stadtverwaltung Bitburg | Government |
| TeliaSonera International Carrier Deutschland GmbH | Telecommunications |
| Telekom T-Systems International GmbH | Telecommunications |
| Unister GmbH | Web Portals |
| Universität Duisburg-Essen | University |
| Verbandsgemeinde Landau, Pfalz | Government |
| Vereinigte Raiffeisenbanken | Bank |
| WEBAC Chemie GmbH | Chemical industry |
| ZKS der Uniklinik Köln | Hospital |
