| Construction Ri-Mar Inc. | 8278-2533-56 | Lanaudière | Active |
| Construction Ricar inc. | 2855-9292-44 | Montréal | Active |
| Construction Ricco Stucco inc. | 5661-6394-01 | Montréal | Active |
| Construction Richard A. Germano Ltée | 1712-7358-61 | Laval | Active |
| Construction Richard Bernier Inc. | 2731-0986-86 | Chaudière-Appalaches | Active |
| Construction Richard Chabot inc. | 5604-4233-01 | Capitale-Nationale | Active |
| Construction Richard Champagne inc. | 8231-1127-01 | Mauricie | Active |
| Construction Richard Delinelle inc. | 8293-4704-34 | Lanaudière | Active |
| Construction Richard et Martin Paquet Ltee | 2219-9970-46 | Montérégie | Active |
| Construction Richard Fortin et Fils inc. | 5715-7067-01 | Mauricie | Active |
| Construction Richard Fournier inc. | 2618-3731-16 | Montérégie | Active |
| Construction Richard Gilbert & Fils inc. | 2551-5446-96 | Chaudière-Appalaches | Active |
| CONSTRUCTION RICHARD MURRAY INC | 2316-3090-79 | Montérégie | Active |
| Construction Richard Parent Inc. | 8354-4189-09 | Chaudière-Appalaches | Active |
| Construction Richard Prévost inc. | 5596-9836-01 | Chaudière-Appalaches | Active |
| Construction Richard Soucy Inc. | 8103-8028-34 | Bas-Saint-Laurent | Active |
| Construction Richelieu inc. | 5712-2293-01 | Montérégie | Active |
| Construction Riex Inc. | 8358-4649-01 | Montérégie | Active |
| Construction Riga & Fils Ltée | 8295-5576-42 | Laval | Active |
| Construction Rinova inc. | 5730-6896-01 | Laval | Active |
| Construction Ritchie inc. | 5806-3603-01 | Montréal | Active |
| Construction Rive-Sud inc. | 5763-6342-01 | Montérégie | Active |
| Construction Rivière Port-Daniel inc. | 8356-8162-48 | Gaspésie--Îles-de-la-Madeleine | Active |
| Construction Rizzo inc. | 5867-0183-01 | | Active |
| Construction RJ Brunelle inc. | 5726-0069-01 | Laurentides | Active |
| Construction RKF inc. | 8310-8399-16 | Laurentides | Active |
| Construction RKH inc. | 5721-1989-01 | Montérégie | Active |
| Construction RKR inc. | 5707-0641-01 | Laval | Active |
| Construction RM Gaudette Inc. | 8278-0370-11 | Montérégie | Active |
| Construction RM Patoine Inc. | 8317-6628-11 | Montérégie | Active |
| Construction RMB Bilodeau inc. | 8323-0524-57 | Laval | Active |
| Construction RMP (2011) inc | 5628-0464-01 | Mauricie | Active |
| Construction RO inc. | 5641-5888-01 | Mauricie | Active |
| Construction Roam inc. | 5861-4017-01 | Laurentides | Active |
| Construction Robert Aubin Inc. | 8284-4713-13 | Chaudière-Appalaches | Active |
| Construction Robert Fournier inc. | 5850-3731-01 | Montérégie | Active |
| Construction Robert Gosselin inc. | 8322-9211-52 | Chaudière-Appalaches | Active |
| Construction Robert Lanoue inc. | 8273-7511-22 | Lanaudière | Active |
| Construction Robert Larivière inc. | 8284-1651-52 | Laurentides | Active |
| Construction Robert Mandeville inc. | 2544-4068-79 | Montérégie | Active |
| Construction Robert Ménard inc. | 5628-4052-01 | Montérégie | Active |
| Construction Robert Tétreault inc. | 5596-6915-01 | Montérégie | Active |
| Construction Robert Tholin inc. | 5869-6246-01 | | Active |
| Construction Roberto Grilli inc. | 5837-7771-01 | Montréal | Active |
| Construction Rocan inc. | 5862-9924-01 | Laval | Active |
| Construction Roch Poirier | 5609-1069-01 | Montérégie | Active |
| Construction Rochefort inc. | 5755-2861-01 | Laval | Active |
| Construction Rocheleau et Martin inc. | 5806-1029-01 | Montérégie | Active |
| Construction Rochette inc. | 5603-5918-01 | Chaudière-Appalaches | Active |
| Construction Rock Dufour inc. | 2748-1753-93 | Saguenay--Lac-Saint-Jean | Active |