O=c=o Corporation
O=C=O Technologies inc.
Oco Technologies Inc.
Odac Skating Company Limited
Odyssey Animation Inc.
OKAZO Communications
Old Hampton Investment Co. Inc.
Olive & Dorion Inc.
Omni Luminaire Inc.
OPAL-RT Technologies Inc.
Operation de Transactions D'outre-Monde Inc.
Opus Coppola International Inc.
Orofex Systems Inc.
Othgames Development Corporation