O'Conner Daniel J.
O'Sullivan John M.
Oddi Frederick V
Ofag Ofenbau-und Feuerungstechnik AG
Officine Meccaniche Carbofuel S.p.A.
Officine Meccaniche Faip S.r.1
Ogasawara Masataka
Oh Min H.
Ohara Toshimichi
Ohr Siddmarth
Ohri Siddaarth
Oki Masanori
Okubo Kyosuke
Olia Hamid
Olinger Harry S.
Olofsson Jan I.
Ookubo Tomohiro
Oouchi Tomihisa
Op Controls S.p.A.
Orisaki Satoshi