CFT Compact Filter Technic Germany 
SEKA Schutzbelüftung Germany 
 ABC Industries Inc United States 
 ABC Ventilation Systems Canada 
 ABMEC - The British Mining Trade Association United Kingdom 
 Atlas Copco Compressors United States 
 Camfil Air Pollution Control United States 
 Dr. Shrink Inc. United States 
 General Equipment Company United States 
 Jiangsu Teyidi New Material CO. LTD. China 
 Loeb Winternitz Industrial Auctioneers United States 
 Paul's Fan Company United States 
 Peak Mechanical & Components Inc. United States 
 PENAtrade Turkey 
 Pillar Mfg.Pillar Mfg. United States 
 Prime Power North South Africa 
 Process Equipment Inc. United States 
 Propulsa Innovations Canada 
 Resource West Inc. United States 
 Schauenburg Flexadux Corp. United States 
 Shandong China Coal Group China 
 Simtech Process Systems United States 
 SPIRO INTERNATIONAL SA Switzerland 
 Swedfan International AB Sweden 
 TALLERES ZITRON, S.A. Spain 
 Terramin South Africa 
 The Cutter Group Pty Ltd Australia 
 The Mackwood Group of Companies Ltd. Canada 
 Western Shelter Systems United States 
 WSP Canada