Oetjen Michael K.
Ogilvy James W.
Oglo Michael F.
Oh Seung-Jong
Ohlsson Hans-Göran
Olcer Nuri Y.
Olcott Douglas F.
Oldham Delbert J.
Oliva Rudolf
Olmstead Vincent J.
Olmsted Gaylord S.
Olsson Olof Bertil
Olympic Arms, Inc.
Omega Systems, Inc.
Onderka Gerhard
Onozuka Masanori
Opdahl Everett W.
Orban Benoit
Orchard Clifton F.
Ordance Development and Engineering Company of Singapore