| Client name | City | Country |
|---|---|---|
| ATM Valve Solutions Ltd. | Ivanic-Grad | Croatia |
| ATPC Terminal N.V. | Antwerp | Belgium |
| ATV Advanced Technology Valve S.p.A. | Colico | Italy |
| Aucotec GmbH | Hannover | Germany |
| Aughinish Alumina Ltd | Aughinish Island | Ireland |
| AURA Industrial Safety Systems | Barcelona | Spain |
| Aurorium Austria GmbH | Linz | Austria |
| Aurubis AG | Hamburg | Germany |
| AustroCel Hallein GmbH | Hallein | Austria |
| Autek AS | Drammen | Norway |
| Autocontrol Process Instrumentation FZE | Sharjah | United Arab Emirates |
| Automática y Fabricación de León (I.A.F.) | Leon | Spain |
| Avcon Controls Pvt. Ltd. | Mumbai | India |
| Aventis Research & Technologies GmbH & Co KG | Frankfurt | Germany |
| AviComp Controls GmbH | Leipzig | Germany |
| Avintos Flow Control AG | Rheinfelden | Switzerland |
| AWC Inc. | Baton Rouge | United States |
| Axalta Coating Systems Germany GmbH & Co. KG | Wuppertal | Germany |
| Axces Steam and Flow Control B.V. | Hendrik-Ido-Ambacht | Netherlands |
| Axens SA | Rueil-Malmaison | France |
| Axima Refrigeration NV | Antwerpen | Belgium |
| AZ-Armaturen GmbH | Mönchweiler | Germany |
| AZBIL CORPORATION | Kanagawa-ken | Japan |
| B-CONTROLS GmbH | Düsseldorf | Germany |
| B.E.S.T. | Bornheim | Germany |
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