Wacker Karl F.
Waggoner John B.
Walfridsson Stefan
Walker Harold L.
Wallace George M.
Wallander Carl O.
Walter Hengst GmbH & Co. KG
Wang Jiann Jong
Wang Kung-Hsi
Wang Yu-Jun
Wapura Trinkwassereinigungs GmbH
Waste Water Systems, Inc.
Water Recovery PLC
Water Refining Company
Watson Cedric H.
Watson William R.
Watts Peter L.
Webb Michael Guthrie
Weber Leslie A.
Weber Raymond C.