O'Halloran Campbell Consultants Limited
Oak Island Entertainment Inc.
Oak Island Tours Inc.
Oakamoor Convalescent Ltd.
Occam Marine Technologie Ltd.
Ocean Concord Incorporated
Ocean Mist Mushrooms Limited
Ocean Prawns Canada Ltd.
Ocean Research Equipment (canada) Limited
Ocean Securities Inc.
Ocean Ways Development Corporation
Ocean Ways Minerals Development Corporation
Ocean Yacht Sales Ltd.
Oceaneering Limited
Oceanex Inc.
Oceans Institute Of Canada
Oceansea Equity Inc.
Oceanus Resources Corporation
OCP Holdings Inc.
Odgers Berndtson Canada / Halifax Inc.