O'keefe Brewing Company Limited
Object Research Systems (ors) Inc.
Oden Capital Corporation
Ogre Productions Ltd.
Ohanian Trade Mix Inc.
Ojji Better Sports Wear Inc.
Olitra Inc.
Onscope group Inc.
Ontario and Quebec Railway company
Open Text Conseil Inc.
Option-3 Communications Inc.
Organi:tout Inc.
Oris Medical Inc.
ORTHOsoft Inc.
Orthosoft Inc.
Orthosoft R. & D. Inc.
OSTnet OPENSOURCE TECHNOLOGIES INC.
Oxford Circle Clothing Inc.
Ozone Distribution Inc.