Organ-Faser Technology BV
Orihashi Akira
Ormsby George S.
Oros Company
Orr Thomas F.
Orum & Rotet
Orzechowski John F.
Osako Kyoichi
Osanai Masatoshi
Osari Yoshihito
Osborn Mark
Osborn Engineering, Inc.
Osborne Lee-Ransome
Oscar Lucks Company
Oseney Limited
Osgood Timothy J.
Oshino Genzi
Oshita Mizuo
Osiensky Brant R.
Osswald Norbert