| Client name | City | Country |
|---|---|---|
| Uhde (Thailand) Ltd. | Sathorn, Bangkok 10120 | Thailand |
| Uhde High Pressure Technologies GmbH | Hagen | Germany |
| UIT SOLUTIONS | Seoul | Republic of Korea |
| ÚJV Rež, a. s. | Husinec | Czech Republic |
| Uniflow Control Instruments Pvt. Ltd. | Navi Mumbai | India |
| Union Kraftstoff AG | Wesseling | Germany |
| UNIPER IT GmbH | Düsseldorf | Germany |
| Uniper Technologies | Gelsenkirchen | Germany |
| UniteChem GmbH | Düsseldorf | Germany |
| United Initiators GmbH | Pullach | Germany |
| Unitherm - Österreichische Gesellschaft | Wien | Austria |
| University of Miskolc | Miskolc-Egyetemváros | Hungary |
| University of Notre Dame | South Bend | United States |
| Untergrundspeicher- und | Mittenwalde/Mark | Germany |
| UOP India Pvt. Ltd. | Gurgaon | India |
| UOP LLC | Des Plaines | United States |
| UOP Malaysia Sdn Bhd | Kuala Lumpur | Malaysia |
| UPM-Kymmene Papier GmbH & Co. KG | Augsburg | Germany |
| USG Industrial Utilities | Geleen | Netherlands |
| Utility Support Group (USG) | Geleen | Netherlands |
| Utmost Shandong | China | |
| V-TECH VALVES & CONTROLS | Ahmedabad | India |
| VA TECH Elin Energietechnik GmbH | Berlin | Germany |
| Valcon Valve & Controls Pty Ltd | Gauteng | South Africa |
| VALE | Rio de Janeiro | Brazil |