| Kundenname | Stadt | Land |
|---|---|---|
| Shell & DEA Oil GmbH | Hamburg | Germany |
| Shell Deutschland Oil GmbH | Wesseling | Germany |
| Shell Deutschland Oil GmbH | Köln | Germany |
| SICK AG | Reute | Germany |
| Siegfried PharmaChemikalien Minden GmbH | Minden | Germany |
| Siemens AG | Bonn-Hardtberg | Germany |
| Siemens AG | Offenbach | Germany |
| Siemens AG | Mülheim a. d. Ruhr | Germany |
| Siemens AG | Mannheim | Germany |
| Siemens AG | Essen | Germany |
| Siemens AG Automation and Drives | Karlsruhe | Germany |
| Siemens AG Power Generation | Erlangen | Germany |
| Siemens Energy Global GmbH & Co. KG | Duisburg | Germany |
| Siemens Energy Global GmbH & Co. KG | München | Germany |
| Siemens Gas and Power GmbH & Co. KG | Duisburg | Germany |
| Siemens Industry Software GmbH & Co.KG | Essen | Germany |
| Siemens PG | Mülheim/ Ruhr | Germany |
| SIEMENS Power Generation | Nürnberg | Germany |
| Siemens-Nixdorf Informationss. AG | Berlin | Germany |
| Siltronic AG | Burghausen | Germany |
| SKL Engineering & Contracting GmbH | Hannover | Germany |
| SKL Engineering GmbH | Berlin | Germany |
| SKL Engineering GmbH | Magdeburg | Germany |
| SKW Stickstoffwerke Piesteritz GmbH | Lutherstadt Wittenberg | Germany |
| Smardt OPK Chillers GmbH | Neckartailfingen | Germany |
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