| Kundenname | Stadt | Land |
|---|---|---|
| TTP GmbH | Rosenheim | Germany |
| TURN2X GmbH | München | Germany |
| TÜV Nord Systems GmbH & Co. KG | Essen | Germany |
| TÜV Nord Systems GmbH & Co. KG | Bremen | Germany |
| TÜV Süd Industrieservice GmbH | Traunreut | Germany |
| Tyczka Hydrogen GmbH | Geretsried | Germany |
| Uhde High Pressure Technologies GmbH | Hagen | Germany |
| Union Kraftstoff AG | Wesseling | Germany |
| UNIPER IT GmbH | Düsseldorf | Germany |
| Uniper Technologies | Gelsenkirchen | Germany |
| UniteChem GmbH | Düsseldorf | Germany |
| United Initiators GmbH | Pullach | Germany |
| Untergrundspeicher- und | Mittenwalde/Mark | Germany |
| UPM-Kymmene Papier GmbH & Co. KG | Augsburg | Germany |
| VA TECH Elin Energietechnik GmbH | Berlin | Germany |
| Valmet Flow Control GmbH | Horgau | Germany |
| VALVE POINT Baltz | Schorndorf | Germany |
| Vattenfall Europe PowerConsult GmbH | Peitz | Germany |
| VAU - von der Wülbecke | Alpen | Germany |
| VESCON Process GmbH | Frankenthal | Germany |
| Vestolit GmbH | Marl | Germany |
| Vetec Ventiltechnik GmbH | Krefeld | Germany |
| VETEC Ventiltechnik GmbH | Speyer | Germany |
| Voith Engineering Services GmbH | Ludwigshafen | Germany |
| Voith Industrial Services GmbH | Wesseling | Germany |