| Client name | City | Country |
|---|---|---|
| ACTA vzw - Antwerps Centrum | Kalmthout | Belgium |
| Actuator Control GmbH | Essen | Germany |
| Adams Armaturen GmbH | Herne | Germany |
| Adams Valves, Inc. | Houston | United States |
| Advanced Chemicals Technology | Tsimshatsui / Hong Kong | Hong Kong |
| Advario Stolthaven Antwerp NV | Antwerpen | Belgium |
| AE&E Inova GmbH | Ratingen | Germany |
| AEG, TVN | Dortmund | Germany |
| AG der Dillinger Hüttenwerke | Dillingen | Germany |
| AGC Flat Glass Europe | Brüssel | Belgium |
| Agfa-Gevaert AG | Leverkusen | Germany |
| Air Liquide | YanAn | China |
| Air Liquide Deutschland GmbH | Krefeld | Germany |
| AIR LIQUIDE Deutschland GmbH | Düsseldorf | Germany |
| Air Liquide Engineering Services Asia (Shanghai) Co., Ltd. | Shanghai | China |
| Air Liquide Global E&C Solution Hangzhou Co., Ltd. | Yuhang District Hangzhou | China |
| Air Liquide Global E&C Solutions France S.A. | Champigny sur Marne Cedex | France |
| Air Liquide Global E&C Solutions Germany GmbH | Frankfurt am Main | Germany |
| AIR LIQUIDE GLOBAL E&C SOLUTIONS INDIA PVT. LTD. | New Delhi | India |
| Air Liquide Global E&C Solutions Poland S.A. | Kraków | Poland |
| AIT Austrian Institute of Technology | Wien | Austria |
| AK2Energy GmbH | Wien | Austria |
| AKA Armaturenhandel Ges.m.b.H. | Niederrußbach | Austria |
| Aker Business Services AS | Fornebu, Lysaker | Norway |
| Aker Business Services Ltd | Zoetermeer | Netherlands |
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