| Client name | City | Country |
|---|---|---|
| AGT-PSG GmbH | Steinbach | Germany |
| 24/7 Metering GmbH | Mannheim | Germany |
| A. Hock MSR- u. Elektronic Service GmbH | Wörth am Main | Germany |
| ABB AG | Mannheim | Germany |
| ABB Automation Products GmbH | Ratingen | Germany |
| ABB Automation Products GmbH | Minden | Germany |
| ABB Automation Products GmbH | Alzenau | Germany |
| ABB Lummus Global GmbH | Leuna | Germany |
| Abbott Laboratories GmbH | Neustadt / a. Rbge | Germany |
| ABEKON Ingenieurgesellschaft für | Wetter | Germany |
| Abfallwirtschaft und Stadtreinigungsbetrieb | Nürnberg | Germany |
| ABK Armaturenbau Köln GmbH | Köln | Germany |
| Acordis Industrial Fibers GmbH | Obernburg | Germany |
| Actuator Control GmbH | Essen | Germany |
| Adams Armaturen GmbH | Herne | Germany |
| AE&E Inova GmbH | Ratingen | Germany |
| AEG, TVN | Dortmund | Germany |
| AG der Dillinger Hüttenwerke | Dillingen | Germany |
| Agfa-Gevaert AG | Leverkusen | Germany |
| AIR LIQUIDE Deutschland GmbH | Düsseldorf | Germany |
| Air Liquide Deutschland GmbH | Krefeld | Germany |
| Air Liquide Global E&C Solutions Germany GmbH | Frankfurt am Main | Germany |
| Aker Process GmbH | Köln | Germany |
| Alexander Girke Engineering | Dresden | Germany |
| Alfa Laval GmbH | Glinde | Germany |
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