Applied Nanotech Holdings Inc.
Applied Science & Engineering Llc.
Applied Utility Systems Inc.
Applikations- Und Technikzentrum Fuer Energieverfahrens Umwelt-Und Stroemungstechnik (atz-Evus)
April Dynamics Industries Ltd.
Apu North America Inc.
Apv Corporation Limited
Apv Homogenizer Group
Aqua Pure Ventures Inc.
Aqua-Aerobic Systems Inc.
Aqua-Chem Inc.
Aqua-Nu Filtration Systems Limited
Aqua-Shear Corporation
Aquaclear Technology Limited
Aquacyc Limited
Aquafrance
Aquamax Oy
Aquaporin A/s
Aquaporin Aps
Aquarecycle Inc.