| 238-15423-25 (421-0026) | Ontario Precast Concrete Manufacturers Association | Labourers’ International Union of North America, and The Labourers’ International Union of North America, Ontario Provincial District Council, on behalf of its affiliated Local Unions, 183, 493, 506, 527,607, 625, 837, 1036, 1059, and 1089 | 5/1/2022 | 4/30/2025 |
| 238-29273-25 (421-0459) | Ontario Association Of Demolition Contractors Inc | Labourers' International Union of North America, and the Labourers' International Union of North America, Ontario Provincial District Council, on behalf of its affiliated Local Unions, 183, 493, 506, 527, 607, 625, 837, 1036, 1059 and 1089 | 5/1/2022 | 4/30/2025 |
| 238-31826-25 (421-0161) | Electrical Trade Bargaining Agency | International Brotherhood Of Electrical Workers and IBEW Construction Council of Ontario, Local 105/115/120/1687/303/353/402/530/586/773/804 | 5/1/2022 | 4/30/2025 |
| 238-20440-25 (421-0515) | The Assn Of Millwrighting Contractors Of Ontario Inc | United Brotherhood Of Carpenters And Joiners Of America, Local 1007/1151/1244/1410/1425/1592/1916/2309 | 5/1/2022 | 4/30/2025 |
| 238-13562-22 (421-1326) | Cement Finishing Labour Relations Association; Construction Labour Relations Association of Ontario; Industrial Contractors Association of Canada; Waterproofing Contractors Association of Ontario | Operative Plasterers and Cement Masons International Association Of The United States And Canada and Local Union 598 | 5/1/2019 | 4/30/2022 |
| 238-24584-22 (421-1174) | Steeplejack And Masonry Restoration Contractors Association | Operative Plasterers', Cement Masons' International Association of the United States and Canada Union Local 598 | 5/1/2019 | 4/30/2022 |
| 238-417-22 (421-0276) | Ontario Industrial Roofing Contractors' Association | Ontario Sheet Metal Workers' & Roofers' Conference, Sheet Metal Workers' International Association on behalf of affiliated Bargaining Agents 30, 47, 235, 269, 397, 473, 504, 537 and 562 | 5/1/2019 | 4/30/2022 |
| 238-10882-22 (421-0050) | Masonry Industry Employers Council of Ontario | Ontario Provincial Conference of the International Union Of Bricklayers and Allied Craftworkers (OPC), Local 6/7 | 5/1/2019 | 4/30/2022 |
| 238-31826-22 (421-0161) | Electrical Trade Bargaining Agency | International Brotherhood Of Electrical Workers and IBEW Construction Council of Ontario, Local 105/115/120/1687/303/353/402/530/586/773/804 | 5/1/2019 | 4/30/2022 |
| 238-26466-22 (421-1325) | Walls and Ceilings Contractors' Associations and the Construction Labour Relations Association of Ontario | Operative Plasterers' & Cement Masons' International Association of the United States and Canada, Local 124 | 5/1/2019 | 4/30/2022 |
| 238-23589-22 (421-0277) | Ontario Sheet Metal Contractors Association | Sheet Metal Workers' International Association and Ontario Sheet Metal Workers' Conference, Locals 30, 47, 235, 269, 397, 473, 504, 537, and 562 | 5/1/2019 | 4/30/2022 |
| 238-11487-22 (421-1907) | Terrazzo, Tile & Marble Guild of Ontario, Inc, | Brick and Allied Craft Union of Canada and its Local 1, 5, 6, 7, 10, 12, 23, 25, 28 and 31 | 4/1/2020 | 4/30/2022 |
| 238-22452-22 (421-1348) | Boilermaker Contractors' Association | International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers on its own behalf and on behalf of Local Lodge 128 | 5/1/2019 | 4/30/2022 |
| 237-34509-22 (421-0088) | Canadian Automatic Sprinkler Association | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 170/179/254/325/488/496/56/740/853 | 5/1/2019 | 4/30/2022 |
| 238-25193-22 (421-1906) | Ontario Masonry Contractors Association/BACU Bargaining Committee | Brick And Allied Craft Union Of Canada and its Local 1, 2, 5, 10, 12, 23, 25, 28, 29 | 5/1/2019 | 4/30/2022 |
| 238-31826-04 (421-0161) | Electrical Trade Bargaining Agency | International Brotherhood Of Electrical Workers, Local 105/115/120/1687/1739/303/353/402/530/586/773/804/894 | 5/1/2001 | 4/30/2004 |
| 238-43031-22 (421-0648) | National Elevator & Escalator Association | International Union of Elevator Constructors on behalf of its Locals 50, 90 and 96 | 5/1/2019 | 4/30/2022 |
| 238-14323-22 (421-0130) | Carpenters' Employer Bargaining Agency | Carpenters' District Council of Ontario, United Brotherhood Of Carpenters And Joiners Of America | 5/1/2019 | 4/30/2022 |
| 238-22188-22 (421-0326) | Mechanical Contractors Association Ontario | 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 | 5/1/2019 | 4/30/2022 |
| 238-9512-22 (421-0634) | Master Insulators' Association of Ontario Inc. | International Association of Heat and Frost Insulators and Allied Workers and International Association of Heat and Frost Insulators and Allied Workers, Local 95 | 5/1/2019 | 4/30/2022 |
| 238-38740-22 (421-0641) | Rodmen Employer Bargaining Agency | International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers and Iron Workers District Council of Ontario, Local 700, 721, 736, 759, 765 and 786 | 5/1/2019 | 4/30/2022 |
| 238-3208-22 (421-0640) | Ontario Erectors Assn | International Association Of Bridge, Structural, Ornamental And Reinforcing Ironworkers and Ironworkers District Council of Ontario, Local 700/721/736/759/765/786 | 5/1/2019 | 4/30/2022 |
| 238-12872-22 (421-0355) | Ontario Refrigeration and Air Conditioning Contractors Association | United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, Local 787 | 5/1/2019 | 4/30/2022 |
| 238-15423-22 (421-0026) | Ontario Precast Concrete Manufacturers' Association | Labourers' International Union of North America, Ontario Provincial District Council on behalf of its affiliated Local Union 183, 493, 506, 527, 607, 625, 837, 1036, 1059, and 1089 | 5/1/2019 | 4/30/2022 |
| 238-29273-22 (421-0459) | Ontario Association of Demolition Contractors Inc. | Labourers' International Union of North America, and the Labourers' International Union of North America, Ontario Provincial District Council, on behalf of its affiliated Local Unions, 183, 493, 506, 527, 607, 625, 837, 1036, 1059, and 1089 | 5/1/2019 | 4/30/2022 |
| 238-35415-22 (421-0256) | Ontario Painting Contractors Association, Acoustical Association Ontario, Interior Systems Contractors Association of Ontario | International Union Of Painters And Allied Trades, and the Ontario Council of the International Union of Painters and Allied Trades, Local 114/1494/1590/1671/1783/1824/1904/200/205/557 | 5/1/2019 | 4/30/2022 |
| 238-20440-22 (421-0515) | The Association Of Millwrighting Contractors Of Ontario Inc | Millwright Regional Council of Ontario, United Brotherhood Of Carpenters And Joiners Of America, on behalf of Locals 1007/1151/1244/1410/1425/1592/1916/2309 | 5/1/2019 | 4/30/2022 |
| 238-6360-22 (421-1065) | Architectural Glass and Metal Contractors Association | International Union of Painters and Allied Trades and the Ontario Council of the International Union of Painters and Allied Trades | 5/1/2019 | 4/30/2022 |
| 238-13562-19 (421-1326) | Cement Masons Employer Bargaining Agency (Cement Finishing Labour Relations Assn; Construction Labour Relations Assn Of Ontario; Industrial Contractors Assn Of Canada; Waterproofing Contractors Assn Of Ontario) | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 598 | 5/1/2016 | 4/30/2019 |
| 238-29273-19 (421-0459) | Ontario Association Of Demolition Contractors Inc | Labourers' International Union of North America, and the Labourers' International Union of North America, Ontario Provincial District Council, on behalf of its affiliated Local Unions, 183, 493, 506, 527, 607, 625, 837, 1036, 1059, 1081 and 1089 | 5/1/2016 | 4/30/2019 |
| 238-34509-19 (421-0088) | Canadian Automatic Sprinkler Association | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 170/179/254/325/488/496/56/740/853 | 5/1/2016 | 4/30/2019 |
| 238-26466-07 (421-1325) | The Walls and Ceilings Contractors' Associations and the Construction Labour Relations Association of Ontario | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124 | 5/1/2004 | 4/30/2007 |
| 238-26466-10 (421-1325) | The Walls and Ceilings Contractors' Associations and the Construction Labour Relations Association of Ontario | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124 | 5/1/2007 | 4/30/2010 |
| 238-26466-13 (421-1325) | The Walls and Ceilings Contractors' Associations and the Construction Labour Relations Association of Ontario | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124 | 5/1/2010 | 4/30/2013 |
| 238-26466-19 (421-1325) | The Walls and Ceilings Contractors' Associations and the Construction Labour Relations Association of Ontario | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124 | 5/1/2016 | 4/30/2019 |
| 238-26466-16 (421-1325) | The Walls and Ceilings Contractors' Associations and the Construction Labour Relations Association of Ontario | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124 | 5/1/2013 | 4/30/2016 |
| 238-9512-19 (421-0634) | Master Insulators' Association Of Ontario Inc | International Association Of Heat And Frost Insulators And Allied Workers, and International Association Of Heat And Frost Insulators And Allied Workers, Local 95 | 5/1/2016 | 4/30/2019 |
| 238-3208-19 (421-0640) | Ontario Erectors Assn | International Association Of Bridge, Structural, Ornamental And Reinforcing Iron Workers, Local 700/721/736/759/765/786 | 5/1/2016 | 4/30/2019 |
| 238-38740-19 (421-0641) | Rodmen Employer Bargaining Agency | International Association Of Bridge, Structural, Ornamental And Reinforcing Iron Workers, Local 700/721/736/759/765/786 | 5/1/2016 | 4/30/2019 |
| 238-43031-19 (421-0648) | National Elevator And Escalator Assn | International Union Of Elevator Constructors on behalf of its Locals 50/90/96 | 5/1/2016 | 4/30/2019 |
| 238-11487-19 (421-1907) | Terrazzo, Tile & Marble Guild Of Ontario, Inc, | Brick And Allied Craft Union Of Canada, and its Locals 1/5/10/12/23/25/28/31 | 5/1/2016 | 4/30/2019 |
| 238-24846-19 (421-0204) | Terrazzo, Tile & Marble Guild Of Ontario, Inc, | Ontario Provincial Conference, International Union Of Bricklayers And Allied Craftsmen, Local 6/7 | 5/1/2016 | 4/30/2019 |
| 238-25193-19 ( 421-1906) | Ontario Masonry Contractors Assn/BACU Bargaining Committee | Brick And Allied Craft Union Of Canada, Local 1/10/12/2/23/25/28/29/5 | 5/1/2016 | 4/30/2019 |
| 238-10882-19 (421-0050) | Masonry Industry Employers Council of Ontario | The Ontario Provincial Conference Of The International Union Of Bricklayers And Allied Craftworkers (OPC), Local 6/7 | 5/1/2016 | 4/30/2019 |
| 238-23589-19 (421-0277) | Ontario Sheet Metal Contractors Assn | Sheet Metal Workers' International Association and Ontario Sheet Metal Workers' Conference, Local 235/269/30/397/47/473/504/537/562 | 5/1/2016 | 4/30/2019 |
| 238-22188-19 (421-0326) | Mechanical Contractors Association Ontario | 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, Local 628/800/527/663/67/46/401/71 | 5/1/2016 | 4/30/2019 |
| 238-22452-19 (421-1348) | Boilermaker Contractors Assn | International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 128 | 5/8/2016 | 4/30/2019 |
| 238-20440-19 (421-0515) | The Association of Millwrighting Contractors of Ontario Inc. | Millwright Regional Council of Ontario, United Brotherhood of Carpenters and Joiners of America, on behalf of Local affiliated Unions, 1007,1151,1244,1410,1425,1592,1916 and 2309 | 5/1/2016 | 4/30/2019 |
| 238-24584-19 (421-1174) | Steeplejack And Masonry Restoration Contractors Assn | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 598 | 5/1/2016 | 4/30/2019 |
| 238-417-19 (421-0276) | Ontario Industrial Roofing Contractors' Association | Ontario Sheet Metal Workers' & Roofers' Conference, Sheet Metal Workers' International Association on behalf of affiliated Bargaining Agents 30, 47, 235, 269, 397, 473, 504, 537 and 562 | 5/1/2016 | 4/30/2019 |
| 238-6360-19 (421-1065) | Architectural Glass And Metal Contractors Assn | International Union Of Painters And Allied Trades And The Ontario Council Of The International Union Of Painters And Allied Trades | 5/1/2016 | 4/30/2019 |
| 238-14323-19 (421-0130) | Carpenters Employer Bargaining Agency | Carpenters' District Council of Ontario, United Brotherhood Of Carpenters And Joiners Of America, Local 1256/1669/18/1946/2041/2222/2486/249/27/397/494/675/785/93 | 5/1/2016 | 4/30/2019 |
| 238-35415-19 (421-0256) | Ontario Painting Contractors Assn, Acoustical Assn Ontario, Interior Systems Contractors Assn of Ontario | International Union Of Painters And Allied Trades, and the Ontario Council of the International Union of Painters and Allied Trades, Local 114/1494/1590/1671/1783/1824/1904/200/205/557 | 5/1/2016 | 4/30/2019 |
| 238-31826-19AA (421-0161) | Electrical Trade Bargaining Agency | International Brotherhood Of Electrical Workers and IBEW Construction Council of Ontario, Local 105/115/120/1687/303/353/402/530/586/773/804 | 5/1/2016 | 4/30/2019 |
| 238-19281-01 | Canadian Automatic Sprinkler Assn | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 179/254/488/496/56/740/799/853 | 5/1/1998 | 4/30/2001 |
| 238-15423-19 (421-0026) | Ontario Precast Concrete Manufacturers Assn | Labourers' International Union Of North America, and the Labourers' International Union Of North America, Ontario Provincial District Council, on Behalf of its affiliated local unions, 183/493/506/527/607/625/837/1036/1059/1081/1089 | 5/1/2016 | 4/30/2019 |
| 238-33345-10 | Carpenters Employer Bargaining Agency | United Brotherhood Of Carpenters And Joiners Of America, Local 1071/1256/1316/1450/1669/18/1946/1988/2041/2050/2222/2451/2486/249/27/2965/38/397/446/494/572/675/785/93 | 5/1/2007 | 4/30/2010 |
| 238-12872-19 (421-0355) | Ontario Refrigeration and Air Conditioning Contractors Association | United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, Local 787 | 5/1/2016 | 4/30/2019 |
| 238-31826-19 (421-0161) | Electrical Trade Bargaining Agency of the Electrical Contractors Association of Ontario | International Brotherhood Of Electrical Workers and IBEW Construction Council of Ontario, Local 105/115/120/1687/303/353/402/530/586/773/804 | 5/1/2016 | 4/30/2019 |
| 238-9512-16 (421-0634-16) | The Master Insulators' Association Of Ontario Inc | International Association Of Heat And Frost Insulators And Allied Workers, Local 95 | 5/1/2013 | 4/30/2016 |
| 238-2210-01 | Ontario Precast Concrete Manufacturers Assn | Labourers' International Union Of North America, Local 1036/1059/1081/1089/183/247/491/493/506/527/597/607/625/837 | 5/1/1998 | 4/30/2001 |
| 238-20681-07 | Boilermaker Contractors Assn | International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers | 5/1/2004 | 4/30/2007 |
| 238-42479-01 | Cement Masons Employer Bargaining Agency | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124/598 | 5/1/1998 | 4/30/2001 |
| 238-20681-10 | Boilermaker Contractors Assn | International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers | 5/1/2007 | 4/30/2010 |
| 238-8751-04 | Plasterers Employer Bargaining Agency | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 124/598 | 5/1/2001 | 4/30/2004 |
| 238-5805-07 | Architectural Glass And Metal Contractors Assn | International Union Of Painters And Allied Trades, Local 77777 | 5/1/2004 | 4/30/2007 |
| 238-4323-04 | Architectural Glass And Metal Contractors Assn | International Brotherhood Of Painters And Allied Trades, Local 77777 | 5/1/2001 | 4/30/2004 |
| 238-9512-13 | The Master Insulators' Association Of Ontario Inc | International Association Of Heat And Frost Insulators And Allied Workers, Local 95 | 5/1/2010 | 4/30/2013 |
| 238-41485-07 | The Master Insulators' Association Of Ontario Inc | International Association Of Heat & Frost Insulators & Asbestos Workers, Local 95 | 5/1/2004 | 4/30/2007 |
| 238-41485-10 | The Master Insulators' Association Of Ontario Inc | International Association Of Heat & Frost Insulators & Asbestos Workers, Local 95 | 5/1/2007 | 4/30/2010 |
| 238-41485-04 | The Master Insulators' Association Of Ontario Inc | International Association Of Heat & Frost Insulators & Asbestos Workers, Local 95 | 5/1/2001 | 4/30/2004 |
| 238-2034-04 | Toronto Metropolitan Demolition Contractors Inc | Labourers' International Union Of North America, Local 1036/1059/1081/1089/183/247/493/506/527/607/625/837 | 5/1/2001 | 4/30/2004 |
| 238-39530-01 | Toronto Metropolitan Demolition Contractors Inc | Labourers' International Union Of North America, Local 77777 | 5/1/1998 | 4/30/2001 |
| 238-7406-10 | Ontario Sheet Metal And Air Handling Group | Sheet Metal Workers' International Association, Local 235/269/30/397/47/473/504/537/539/562 | 5/1/2007 | 4/30/2010 |
| 238-7406-07 | Ontario Sheet Metal And Air Handling Group | Sheet Metal Workers' International Association, Local 235/269/30/397/47/473/504/537/539/562 | 5/1/2004 | 4/30/2007 |
| 238-44579-01 | Ontario Industrial Roofing Contractors Assn | Sheet Metal Workers' International Association, Local 235/269/30/392/397/47/473/504/537/539/562 | 5/1/1998 | 4/30/2001 |
| 238-19473-13 | Painters Employer Bargaining Agency | International Union Of Painters And Allied Trades, Local 114/1494/1590/1671/1824/1832/1904/200/205/46/557 | 5/1/2010 | 4/30/2013 |
| 238-19473-10 | Painters Employer Bargaining Agency | International Union Of Painters And Allied Trades, Local 114/1494/1590/1671/1824/1832/1904/200/205/46/557 | 5/1/2007 | 4/30/2010 |
| 238-19473-07 | Painters Employer Bargaining Agency | International Union Of Painters And Allied Trades, Local 114/1494/1590/1671/1824/1832/1904/200/205/46/557 | 5/1/2004 | 4/30/2007 |
| 238-33345-07 | Carpenters Employer Bargaining Agency | United Brotherhood Of Carpenters And Joiners Of America, Local 1071/1256/1316/1450/1669/18/1946/1988/2041/2050/2222/2451/2486/249/27/2965/38/397/446/494/572/675/785/93 | 5/1/2004 | 4/30/2007 |
| 238-33345-04 | Carpenters Employer Bargaining Agency | United Brotherhood Of Carpenters And Joiners Of America, Local 1071/1256/1316/1450/1669/18/1946/1988/2041/2050/2222/2451/2486/249/27/2965/38/397/446/494/572/675/785/93 | 5/1/2001 | 4/30/2004 |
| 238-36400-07 | Canadian Automatic Sprinkler Assn | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 170/179/254/488/496/56/740/799/853 | 5/1/2004 | 4/30/2007 |
| 238-36400-10 | Canadian Automatic Sprinkler Assn | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 170/179/254/488/496/56/740/799/853 | 5/1/2007 | 4/30/2010 |
| 238-43643-07 | Ontario Masonry Industry Employers Council | International Union Of Bricklayers And Allied Craftsmen, Local 25/6/7 | 5/1/2004 | 4/30/2007 |
| 238-17767-04 | Ontario Masonry Industry Employers Council | International Union Of Bricklayers And Allied Craftsmen, Local 77777 | 5/1/2001 | 4/30/2004 |
| 238-17767-01 | Ontario Masonry Industry Employers Council | International Union Of Bricklayers And Allied Craftsmen, Local 77777 | 5/1/1998 | 4/30/2001 |
| 238-41499-07 | Ontario Terrazzo Tile And Marble Guild | Brick And Allied Craft Union Of Canada, Local 10/12/23/28/31/4/5 | 5/1/2004 | 4/30/2007 |
| 238-41499-10 | Ontario Terrazzo Tile And Marble Guild | Brick And Allied Craft Union Of Canada, Local 10/12/23/28/31/4/5 | 5/1/2007 | 4/30/2010 |
| 238-22452-13 | Boilermaker Contractors Assn | International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 128/146/203/555/73 | 5/1/2010 | 4/30/2013 |
| 238-22452-16 (421-1348-16) | The Boilermaker Contractors' Association | The International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 203/73/128/555 | 5/1/2013 | 4/30/2016 |
| 238-10882-16 (421-0050-16) | Ontario Masonry Industry Employers Council | International Union Of Bricklayers And Allied Craftsmen, Local 6/7 | 5/1/2013 | 4/30/2016 |
| 238-11487-16 (421-1907-16) | Terrazzo, Tile & Marble Guild Of Ontario, Inc. | Brick And Allied Craft Union Of Canada, Local 10/12/23/25/28/31/4/5 | 5/1/2013 | 4/30/2016 |
| 238-12872-16 (421-0355-16) | Ontario Refrigeration And Air Conditioning Contractors Association | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 787 | 5/1/2013 | 4/30/2016 |
| 238-13562-16 (421-1326-16) | Cement Masons Employer Bargaining Agency | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 598 | 5/1/2013 | 4/30/2016 |
| 238-14323-16 (421-0130-16) | Carpenters Employer Bargaining Agency | United Brotherhood Of Carpenters And Joiners Of America, Local 1256/1669/18/1946/2041/2222/2486/249/27/675/785/93 | 5/1/2013 | 4/30/2016 |
| 238-15423-16 (421-0026-16) | Ontario Precast Concrete Manufacturers Assn | Labourers' International Union Of North America, Local 1036/1059/1081/1089/183/247/493/506/527/607/625/837 | 5/1/2013 | 4/30/2016 |
| 238-20440-16 (421-0515-16) | The Assn Of Millwrighting Contractors Of Ontario Inc | United Brotherhood Of Carpenters And Joiners Of America, Local 1007/1151/1244/1410/1425/1592/1916/2309 | 5/1/2013 | 4/30/2016 |
| 238-22188-16 (421-0326-16) | Mechanical Contractors Association Ontario | United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 221/46/463/508/527/552/593/599/628/663/666/67/71/800/819 | 5/1/2013 | 4/30/2016 |
| 238-23589-16 | Ontario Sheet Metal Contractors Assn | Sheet Metal Workers' International Association, Local 235/269/30/397/47/473/504/537/539/562 | 5/1/2013 | 4/30/2016 |
| 238-24584-16 (421-1174-16) | Steeplejack And Masonry Restoration Contractors Association | Operative Plasterers' & Cement Masons' International Association Of The United States And Canada, Local 598 | 5/1/2013 | 4/30/2016 |
