| Kundenname | Stadt | Land |
|---|---|---|
| VYNOVA Belgium NV | Tessenderlo | Belgium |
| Vynova Wilhelmshaven GmbH | Wilhelmshaven | Germany |
| Vytal Controls Pvt. Ltd | Kubadthal - Ahmedabad | India |
| W+Z Rohrsystem-Technik GmbH | Netphen-Deuz | Germany |
| WABAG Water Services S.R.L. | Bucharest | Romania |
| Wacker Chemie AG | Burghausen | Germany |
| Wacker Chemie AG | München | Germany |
| Wagner Technik Seminare | St. Leon-Rot | Germany |
| Waikato Institute of Technology | Hamilton | New Zealand |
| Walcher Meßtechnik GmbH | Kirchzarten | Germany |
| Waldemar Pruss Armaturenfabrik GmbH | Hannover | Germany |
| Waldemar Pruss Armaturenfabrik GmbH | Hilden | Germany |
| Walter Stenzenberger | München | Germany |
| Walthon Weir Pacific S.A. | Zaragoza | Spain |
| Weber Engineering GmbH & Co. KG | Pulheim | Germany |
| Weber Engineering GmbH & Co. KG | Dortmund | Germany |
| Wehrle-Werk AG | Emmendingen | Germany |
| Weir Valves & Controls | Huddersfield | United Kingdom |
| Weisz Andina S.A.S | Cajica | Colombia |
| WEKA AG | Bäretswil | Switzerland |
| Welland & Tuxhorn AG | Bielefeld | Germany |
| Welter, Thomas | Weilerswist | Germany |
| Westfälische Hochschule | Gelsenkirchen | Germany |
| Westlake US 2 LLC | Houston | United States |
| Westlake US 2 LLC | Westlake | United States |