| Kundenname | Stadt | Land |
|---|---|---|
| JC Eckardt GmbH | Merseburg | Germany |
| JC Eckardt GmbH | Stuttgart | Germany |
| Jensch-Kölsch & Partner | Köln | Germany |
| John Brown Deutsche Engineering | Bochum | Germany |
| JOHN BROWN VOEST GmbH | Leipzig | Germany |
| John Crane GmbH | Fulda | Germany |
| John Zink GmbH | Frankfurt | Germany |
| Johnson Matthey Chemicals GmbH | Emmerich | Germany |
| Juette Engineering | Kempen | Germany |
| Junkalor GmbH | Dessau | Germany |
| KAB TAKUMA GmbH | Berlin | Germany |
| Kali-Chemie AG | Nienburg | Germany |
| KBN Engineering GmbH | Marl | Germany |
| KERN Technology GmbH & Co. KG | Eisenberg | Germany |
| Kernkraftwerk Brunsbüttel GmbH & Co. oHG | Brunsbüttel | Germany |
| Keynes Planungsgesellschaft mbH | Neuss | Germany |
| Keystone GmbH | Mönchengladbach | Germany |
| KG transmitter components GmbH | Bad Oeynhausen | Germany |
| KI plan GmbH | Pinneberg | Germany |
| Kiel Engineering GmbH | Gelsenkirchen | Germany |
| Kiel Enginieering GmbH | Wesseling | Germany |
| Klaus Fischer GmbH & Co. KG | Bad Salzuflen | Germany |
| KLAUS UNION GmbH & Co. KG | Bochum | Germany |
| KLAUS-J. THUM VDI | Parey-Elbe | Germany |
| KLK EMMERICH GmbH | Emmerich | Germany |