Aeroqual
Alstom Sa
Anguil Environmental Systems Inc.
Babcock & Wilcox Enterprises Inc.
CR Clean Air Group
Daikin Industries Ltd.
Donaldson Company Inc.
D?rr Systems Inc.
ELEX AG
Foster Wheeler Ag
Fujian Longking Co. Ltd.
GEA Group AG
HAMON Group
Heil Process Equipment
LLC
Heumann Environmental Company
Indigo Technologies
Intellishare Environmental Inc.
Kbr
Inc
Kono Kogs Inc.
MANN+HUMMEL Intern. GmbH & Co. KG
Mitsubishi Hitachi Power Systems
Ltd.
Siemens Energy
Thermax Ltd.