| Construction Mario Forest inc. | 5720-3515-01 | Lanaudière | Active |
| Construction Mario Gingues Inc. | 8308-4764-37 | Estrie | Active |
| Construction Mario Lemieux Inc. | 8345-6756-37 | Chaudière-Appalaches | Active |
| Construction Mario Munger Inc. | 8342-6312-59 | Lanaudière | Active |
| Construction Mario Rainville inc. | 8001-6421-57 | Lanaudière | Active |
| Construction Mario Rousseau Inc. | 5610-9218-01 | Laurentides | Active |
| Construction Mario Venne inc. | 8003-8227-29 | Capitale-Nationale | Active |
| Construction Marjo Design inc. | 5688-5460-01 | Estrie | Active |
| Construction Mark Dichter Inc. | 1945-2341-01 | Montréal | Active |
| Construction Marlin inc. | 2852-4791-22 | Capitale-Nationale | Active |
| Construction Marsteel.inc | 5869-0587-01 | Montréal | Active |
| Construction Martel Immobilier inc. | 5794-5735-01 | Montréal | Active |
| Construction Martimbeault inc. | 5791-4277-01 | Centre-du-Québec | Active |
| Construction Martin & David Ltée. | 5841-8542-01 | Montréal | Active |
| Construction Martin Alie inc. | 5678-9985-01 | Montérégie | Active |
| Construction Martin Caux inc. | 5647-1238-01 | Laurentides | Active |
| Construction Martin Couture inc. | 8344-1071-46 | Chaudière-Appalaches | Active |
| Construction Martin Daviau inc. | 8268-1933-57 | Montérégie | Active |
| Construction Martin Doyon inc. | 5763-4172-01 | Chaudière-Appalaches | Active |
| Construction Martin Dubuc inc. | 5858-4525-01 | Estrie | Active |
| Construction Martin Duval inc. | 8352-2482-05 | Laurentides | Active |
| Construction Martin Filiatrault inc. | 5657-3686-01 | Laurentides | Active |
| Construction Martin Gagné (2011) inc | 5632-2738-01 | Chaudière-Appalaches | Active |
| Construction Martin Lachance Inc. | 5593-5530-01 | Laurentides | Active |
| Construction Martin Leblanc inc. | 8356-9186-02 | Capitale-Nationale | Active |
| Construction Martin Leduc inc. | 8271-1722-46 | Laurentides | Active |
| Construction Martin Létourneau inc. | 5685-9515-01 | Laurentides | Active |
| Construction Martin Nadeau inc. | 5608-6150-01 | Chaudière-Appalaches | Active |
| Construction Martin Ouellet inc. | 8103-1007-51 | Bas-Saint-Laurent | Active |
| Construction Martin Papineau Inc. | 8233-0697-01 | Chaudière-Appalaches | Active |
| Construction Martin Perigny Et Fils inc. | 2749-6967-30 | Mauricie | Active |
| Construction Martin Perron inc. | 5848-1995-01 | Montérégie | Active |
| Construction Martin Rondeau Inc. | 8317-4086-55 | Lanaudière | Active |
| Construction Martin Ross inc. | 5668-4715-01 | Montérégie | Active |
| Construction Martin Trahan inc. | 5667-9426-01 | Montérégie | Active |
| Construction Martoccia inc. | 8359-3897-35 | Montréal | Active |
| Construction Marty Foster inc. | 5678-0372-01 | Montérégie | Active |
| Construction Marvax inc. | 5815-3255-01 | Laval | Active |
| Construction Marvel S.E.C. | 5850-0729-01 | Outaouais | Active |
| Construction Mastard inc. | 5824-0474-01 | Montréal | Active |
| Construction Mat Desmarais inc. | 5802-7558-01 | Montérégie | Active |
| Construction Mathieu Bacon inc. | 5719-0050-01 | Mauricie | Active |
| Construction Mathieu Borduas inc. | 5636-4169-01 | Estrie | Active |
| Construction Mathieu Brochu inc. | 5701-1793-01 | Estrie | Active |
| Construction Mathieu Champagne Inc. | 5644-7436-01 | Lanaudière | Active |
| Construction Mathieu Charest inc. | 5774-7339-01 | Bas-Saint-Laurent | Active |
| Construction Mathieu Charland inc | 5699-4486-01 | Montérégie | Active |
| Construction Mathieu Charron inc. | 5641-6944-01 | Laurentides | Active |
| Construction Mathieu Clément inc. | 5687-4589-01 | Montérégie | Active |
| Construction Mathieu Désautels inc. | 5865-3411-01 | Montérégie | Active |