Noel Thierry
Ogasawara Masao
Ohyabu Kenichi
Oil States Industries (UK) Ltd.
Okamoto Kimio
Okawa Screw Manufacturing Co., Ltd.
Olivier Huey P.
Omega-Flex, Inc.
Omsco, Inc.
Ono Tatuso
Oteco Equipment Company
Palladini Mario
Pallini, Jr. Joseph P.
Panek John G.
Parker Ermeto GmbH
Patrick David H.
Patterson Billy R.
Pearson Larry G.
Peeck Adolf
Pegon Daniel