last update March 19th, 2017
| Company | Country | ZIP | City |
| AHC Oberflächentechnik GmbH | Germany | 50171 | Kerpen |
| Bodycote plc | UK | SK 10 2BB | Macclesfield |
| Brenco Surface Engineering | AUS | Melbourne | |
| Eifeler Group | Germany | 40595 | Düsseldorf |
| Hauzer Techno Coating | Netherlands | 5928 | Venlo |
| IHI Ionbond | Switzerland | 8045 | Zürich |
| Oerlikon Balzers Coating AG | Liechtenstein | 9496 | Balzers |
| Oerlikon Metco | Switzerland | 8401 | Wintertur |
| Praxair Surface Technologies | USA | IN 46222 | Indianapolis |
| Sandvik Materials Technology | Germany | 40549 | Düsseldorf |