Ookubo Hiroyuki
Oonishi Tethuo
Opalport Electronics Limited
Ophir Optronics Ltd.
Oplinger Kirk A.
Opmaxx Inc.
Oppelt Reiner
Oprea Alexandru
Optimum Solutions Ltd.
Ordidge Roger John
Organisation Europeenne Pour La Recherche Nucleaire (cern)
Original Solutions Inc.
Ormin Jonas
Orr Timothy Neil
Ortega Murguia Jose Tomas
Orth Edward D.
Orton Harry E.
Osaki Electric Co.
Osbon William O.
Osborne Michael J.