Oonuma Mitsuru
Oonuma Takehiko
Oosta Gary
Ootaki Takugo
Ootani Toshihiro
Ootatsume Yoshio
Optical Chemical Tech. Ltd.
Optical Sensors Incorporated
OraSure Technologies, Inc.
ORE Research Institute
Oriental Electric Company, Ltd.
Orion Diagnostica
Orion-yhtyma Oyj
Ormsby Rachel A.
Orth Helmut
Osada Fusae
Osawa Norimasa
Oshea, Getz & Kosakowski, P.C.
Oshlag David A.
Osmetech PLC