| Client name | City | Country |
|---|---|---|
| Yanbu National Petrochemical Company | Yanbu Industrial City | Saudi Arabia |
| Yara Belgium N.V. | Brussels | Belgium |
| YARA Brunsbüttel GmbH | Büttel | Germany |
| Yara Sluiskil B.V | Sluiskil | Netherlands |
| Yncoris GmbH & Co. KG | Hürth-Knapsack | Germany |
| Yokogawa Deutschland GmbH | Ratingen | Germany |
| Yokogawa Electric International Pte Ltd | Singapore | Singapore |
| Young & Franklin Inc. | Liverpool | United States |
| Zaklad Automatyki Przemyslowej INTEC sp. z o.o. | Wroclaw | Poland |
| Zaklady Automatyki "POLNA" S.A. | Przemysl | Poland |
| Zeeland Refinery | Nieuwdorp | Netherlands |
| Zhejiang Beier Control Valve Co., LTD | Zhejiang | China |
| Zhejiang Linuo fluid control Technology Co., Ltd. | Ruian City | China |
| Zimmer AG | Frankfurt | Germany |
| Zwick Armaturen GmbH | Ennepetal | Germany |
| Zwick Valves North America LLC | La Porte | United States |