| Kundenname | Stadt | Land |
|---|---|---|
| hte GmbH | Heidelberg | Germany |
| HTWS Zittau-Görlitz | Zittau | Germany |
| Hualu Engineering company | Xi'an | China |
| Hüttenwerke Krupp Mannesmann GmbH | Duisburg | Germany |
| HWFB Systemtechnik GmbH | Oststeinbek | Germany |
| Hyper Valves Pvt. Ltd. | Ahmedabad | India |
| HYXO OY | Kerava | Finland |
| I.E.C. Dagro B.V. | Sittard | Netherlands |
| I.N.T. S.r.l. - Instrumentation New Technologies | Castelverde | Italy |
| IBB Informationssysteme Beratungs | Neu-Isenburg | Germany |
| Iberoplan S.A. | Madrid | Spain |
| IBF | Bruckmühl | Germany |
| ICIG Business Services GmbH | Wuppertal | Germany |
| ICODOS GmbH | Mannheim | Germany |
| IEMA Automationstechnik GmbH | Weißkirchen | Austria |
| IFFCO Limited | Iffcotownship S.O | India |
| IGL Ingenieur Gesellschaft Ludwigsfelde mbH | Ludwigsfelde | Germany |
| iHandl Engineering bvba | Assenede | Belgium |
| IHI Corporation | Köln | Germany |
| IKG-Fichtner GmbH & Co KG | Ludwigshafen | Germany |
| ILF Beratende Ingenieure GmbH | München | Germany |
| ILF Beratende Ingenieure GmbH | München | Germany |
| ILF Consulting Engineers Austria GmbH | Leobersdorf | Austria |
| ILF Consulting Engineers Austria GmbH | Wien | Austria |
| ILVA S.P.A. | Taranto | Italy |
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