O'Hara John W.
O'Haver George G.
O'Keefe J. J.
O'Rourke Cameron
O.S.C.A.R. International
Oberg Per O.
Oberg Per Olof
Obermeyer Henry K.
Obermeyer Henry K.
Obermeyer Michael B.
Oellers Thomas
Oftebro Ivar
Ohbayashi-Gumi Ltd.
Oil Recovery Systems International
Oil Spill Containment Systems Pty. Ltd.
Oil Stop, Inc.
Oiltrol, Inc.
Okamoto Michio
Olsen Arlen R.
Olsoni Kimberly B.