Hubley Darryl W.
Hupy Guy M.
Husa William
Hydrowega Consulting BV
Ibata Toshiaki
Iikawa Yukio
Ino Seiichi
International Hydraulic Systems, Inc.
Isotech, Inc.
Ives Christopher
J. P. Murray Co., Inc.
Jacobson Clayton
Jo Yong-Jin
Jochum Friedrich
Jones Clyde B.
Jones Joseph C.
Jorde Jens-Herman
Jorg Gunther W.
Jorg Gunther W.
Kago Muneaki