Ô Design Inc.
O'bar Disco Club Restaurant Inc.
O'beirne, Nobert & Associes/associates Inc.
O'bree Consulting Inc *
O'brien & Williams Ltd.
O'brien Racing Associates Limited
O'brien-Lucas Inc.
O'casey, Malaison & Ass. Inc.
O'cono Films Inc.
O'dea Consulting Ltd.
O'farrell Houde Inc.
O'Farrell Marketing Incorporated
O'keefe & Associes (international) Ltee
O'keefe Brewing Company Limited
O'keefe Printing Limited
O'kelley Promotions Inc.
O'leary Funds Inc.
O'mara Aviation Ltd.
O'max Peinture & Décoration Ltée
O'neil Tractions Et Equipements Inc.