for Metropolitan Plumbing Contractors Association, Urban Mechanical Contractors Limited, Zentil Plumbing and Heating Co. Ltd., Lou Pupolin Plumbing and Heating Ltd., Keele Plumbing and Heating Ltd., DiMarco Plumbing and Heating Co. Ltd., Municipal Plumbing and Heating Ltd., Cesan Mechanical Systems Ltd., D. Zentil Mechanical Ltd.
for Ontario Council of the International Union of Painters and Allied Trades, International Union of Painters and Allied Trades, Local 1795 Glaziers and Metal Mechanics, International Union of Painters and Allied Trades, Local 1819, Glaziers and Metal Mechanics
for Sean O'Ryan and the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, Local 46
for the International Brotherhood of Painters and Allied Trades and Ontario Council of International Brotherhood of Painters and Allied Trades, Local Union 1891
for the International Union of Bricklayers and Allied Craftsmen and The Ontario Provincial Conference of the International Union of Bricklayers and Allied Craftsmen and International Union of Bricklayers and Allied Craftsmen, Local 20, Oshawa
for the International Union of Operating Engineers, Local 793 and the International Association of Bridge, Structural and Ornamental Reinforcing Iron Workers, Local 721
for the Ontario Pipe Trades Council of the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada
for The Ontario Pipe Trades Council of the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada and United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada Local Union 853 and International Brotherhood of Electrical Workers Construction Council of Ontario
for the Ontario Pipe Trades Council of the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada and United Association of the Plumbing and Pipefitting Industry of the United States and Canada, Local 527
for United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local 221 and the Ontario Pipe Trades Council