| Kundenname | Stadt | Land |
|---|---|---|
| ITD Solutions S.p.A | Milano | Italy |
| Iting Italiana Ingegneria S.r.l. | SIRACUSA | Italy |
| ITT Richter Chemie Technik GmbH | Kempen | Germany |
| IVM GmbH | Leverkusen | Germany |
| Iwatani Corporation | Amagasaki-City | Japan |
| IWB Industrielle Werke Basel | Basel | Switzerland |
| J. VILANOVA & Cª. SA | Carregado | Portugal |
| Jacobs | Portsmouth | United Kingdom |
| Jacobs Engineering Inc. | Glasgow | United Kingdom |
| Jacobs Italia S. p. A. | Cologno Monzese | Italy |
| JASTA-ARMATUREN GmbH & Co.KG | Essen | Germany |
| JC Eckardt GmbH | Dorsten | Germany |
| JC Eckardt GmbH | Stuttgart | Germany |
| JC Eckardt GmbH | Merseburg | Germany |
| JD Mesure | La Seyne sur Mer | France |
| Jensch-Kölsch & Partner | Köln | Germany |
| JGC Philippines, Inc. | Muntinlupa City | Philippines |
| Jiangnan Valve Company | Wenzhou | China |
| Jiangsu CNLOK Fluid Systems Technologies Co., Ltd. | Shanghai | China |
| John Brown Deutsche Engineering | Bochum | Germany |
| John Brown Eng. en Constr.B.V. | Zoetermeer | Netherlands |
| JOHN BROWN VOEST GmbH | Leipzig | Germany |
| JOHN COCKERILL SA | Seraing | Belgium |
| John Crane | Morton Grove | United States |
| John Crane - Iskra | Perm | Russian Federation |