O'Bryne Daniel J.
Oakes Roy
Obrist Basil
Officine Meccaniche Varinelli SpA
Ohkuma Corporation
Okubo Takanori
Okuma Machine Tools Inc.
Okumura Tokimasa
OP S.r.l.
Osaki Engineering Co., Ltd
Ostini Giorgio
Ottone Renato
Outous Ronald
Overby Paul M.