O.C.E.M. S.p.A.
Oda Goichi
Okuda Moriaki
Okutsu Kenzo
Ongaro Andrea
Ono Syunsuke
Ooka Taneji
OOO “Dependable Electronic Converter Systems”, RU
Orchard-Webb Jonathan Harry
Orlov Konstantin I vovich
Osrom Sylvania, Inc.
Otake Hirokazu
Overgoor Bernardus J.
Overgoor Bernardus J. M.
Oy Teknoware
Oyama Joji
Ozbek Mehmet