| Construction Planex inc. | 5753-5148-01 | Montréal | Active |
| Construction Planit inc. | 8314-8924-21 | Montréal | Active |
| Construction Platine Pro inc. | 5794-7913-01 | Montréal | Active |
| Construction plomberie Tech-Trust inc. | 5839-1400-01 | Montréal | Active |
| Construction Power Star inc. | 5616-6671-01 | Montréal | Active |
| Construction Precellence Inc. | 2630-1150-09 | Montréal | Active |
| Construction Pressault inc. | 5739-1757-01 | Montréal | Active |
| Construction Prima Fase inc. | 5790-9343-01 | Montréal | Active |
| Construction PRMA inc. | 5818-1645-01 | Montréal | Active |
| Construction Pro ARMS inc. | 5794-5610-01 | Montréal | Active |
| Construction Pro Nik inc. | 5643-6363-01 | Montréal | Active |
| Construction Produx inc. | 5846-9610-01 | Montréal | Active |
| Construction Propers inc. | 5727-0159-01 | Montréal | Active |
| Construction Pur Immobilia inc. | 5787-3192-01 | Montréal | Active |
| Construction Quali-T inc. | 5714-3836-01 | Montréal | Active |
| Construction Quatrium inc. | 5771-9189-01 | Montréal | Active |
| Construction Quattro RS3 inc. | 5864-5326-01 | Montréal | Active |
| Construction Quest inc. | 5791-4541-01 | Montréal | Active |
| Construction Rafa Inc. | 5684-4467-01 | Montréal | Active |
| Construction Rano inc. | 5664-3158-01 | Montréal | Active |
| Construction REALMONT inc. | 5859-5554-01 | Montréal | Active |
| Construction Redev inc. | 5672-8181-01 | Montréal | Active |
| Construction Rekon inc. | 5711-7863-01 | Montréal | Active |
| Construction Renaissance CR inc. | 5683-1209-01 | Montréal | Active |
| Construction Reno 24 inc. | 5854-0584-01 | Montréal | Active |
| Construction RENOBILT inc. | 5770-7127-01 | Montréal | Active |
| Construction Rénovation ABC inc. | 5834-1926-01 | Montréal | Active |
| Construction Rénovation Constructforce Edelweiss inc. | 5837-1188-01 | Montréal | Active |
| Construction Rénovation Del Rosa inc | 5618-1522-01 | Montréal | Active |
| Construction Rénovation J. Durand inc. | 5805-6805-01 | Montréal | Active |
| Construction Rénovation J.O.D.D. inc. | 5680-8272-01 | Montréal | Active |
| Construction Rénovation K.O.5 inc. | 5860-1139-01 | Montréal | Active |
| Construction Rénovation Philip Lefebvre inc. | 5813-1418-01 | Montréal | Active |
| Construction Rénovation Promax inc. | 5742-9334-01 | Montréal | Active |
| Construction Renoventure inc. | 5838-6319-01 | Montréal | Active |
| Construction Rénovex inc. | 5861-8067-01 | Montréal | Active |
| Construction Rétrofit inc. | 5825-8377-01 | Montréal | Active |
| Construction Ricar inc. | 2855-9292-44 | Montréal | Active |
| Construction Ricco Stucco inc. | 5661-6394-01 | Montréal | Active |
| Construction Ritchie inc. | 5806-3603-01 | Montréal | Active |
| Construction Roberto Grilli inc. | 5837-7771-01 | Montréal | Active |
| Construction ROCKFORM inc. | 5847-2184-01 | Montréal | Active |
| Construction Romatech Inc. | 5592-1274-01 | Montréal | Active |
| Construction Ropak et Fils inc. | 5661-1239-01 | Montréal | Active |
| Construction Rosemont inc. | 5806-5616-01 | Montréal | Active |
| Construction Royale J.T inc. | 5767-6116-01 | Montréal | Active |
| Construction RSS inc. | 5699-8487-01 | Montréal | Active |
| Construction RT Rocs inc. | 5650-2107-01 | Montréal | Active |
| Construction Rubbo Ltée | 8250-1008-17 | Montréal | Active |
| Construction Rubix inc. | 5810-4555-01 | Montréal | Active |