| Construction P M Brûlé inc. | 5784-3617-01 | Laurentides | Active |
| Construction P Y inc. | 5858-8138-01 | Laurentides | Active |
| Construction P. Stafford Inc. | 8344-2103-09 | Laurentides | Active |
| Construction P.L Champagne inc. | 5846-1336-01 | Laurentides | Active |
| Construction P.P.L. Bouffard inc. | 5592-4179-01 | Laurentides | Active |
| Construction Pamaco inc. | 5820-3472-01 | Laurentides | Active |
| Construction Panache (2017) inc. | 5719-6495-01 | Laurentides | Active |
| Construction Parallèle inc. | 8304-1087-28 | Laurentides | Active |
| Construction Pascal Briand inc. | 5596-1205-01 | Laurentides | Active |
| Construction Pascal Lavoie inc. | 5731-5418-01 | Laurentides | Active |
| Construction Pascal Rondeau Inc | 8358-4482-01 | Laurentides | Active |
| Construction Pasco inc. | 8355-8759-13 | Laurentides | Active |
| Construction Patrick Belisle inc. | 8326-7864-19 | Laurentides | Active |
| Construction Patrick Desjardins inc | 8240-2439-59 | Laurentides | Active |
| Construction Patrick Dussault inc. | 8340-6215-55 | Laurentides | Active |
| Construction Patrick Julien Inc. | 8355-8692-00 | Laurentides | Active |
| Construction Paul Jr Mailloux inc. | 5753-0552-01 | Laurentides | Active |
| Construction Paul Morin inc. | 8361-6136-01 | Laurentides | Active |
| Construction Pauzé & Fils Inc. | 2552-7474-58 | Laurentides | Active |
| Construction Pelucci inc. | 5785-6023-01 | Laurentides | Active |
| Construction Performa inc. | 8240-3577-16 | Laurentides | Active |
| Construction Perth Inc. | 8231-6449-14 | Laurentides | Active |
| Construction Philip Cousineau (2003) inc. | 5730-6839-01 | Laurentides | Active |
| Construction Philippe Côté inc. | 5620-5248-01 | Laurentides | Active |
| Construction Philippe Couillard inc. | 8350-6659-00 | Laurentides | Active |
| Construction Philippe Laverdure inc. | 5712-8308-01 | Laurentides | Active |
| Construction Pierre Barabé inc. | 5693-1389-01 | Laurentides | Active |
| Construction Pierre Charbonneau inc. | 5794-1965-01 | Laurentides | Active |
| Construction Pierre Forget inc. | 5587-9852-01 | Laurentides | Active |
| Construction Pierre Lalande inc. | 8313-7661-40 | Laurentides | Active |
| Construction Pierre-Alexandre Moreau inc. | 5756-2837-02 | Laurentides | Active |
| Construction Pierre-Alexandre Moreau inc. | 5756-2837-01 | Laurentides | Active |
| Construction Plemco inc. | 5797-1897-01 | Laurentides | Active |
| Construction Plus Values inc. | 5789-3562-01 | Laurentides | Active |
| Construction PML inc. | 5820-4199-01 | Laurentides | Active |
| Construction Poly-Concept inc. | 8244-0181-28 | Laurentides | Active |
| Construction Poly-Pros inc. | 5795-3291-01 | Laurentides | Active |
| Construction Potvin & Pauzé inc. | 5859-4870-01 | Laurentides | Active |
| Construction PR2 inc. | 5802-3177-01 | Laurentides | Active |
| Construction Prismatek inc. | 5858-5225-01 | Laurentides | Active |
| Construction PRM inc. | 5732-5631-01 | Laurentides | Active |
| Construction Pro M.D. inc. | 5817-9268-01 | Laurentides | Active |
| Construction Projets sur Mesure inc. | 5715-1292-01 | Laurentides | Active |
| Construction Projyg Inc. | 8351-0966-08 | Laurentides | Active |
| Construction Provost Inc. | 8324-3675-19 | Laurentides | Active |
| Construction Prud'Homme et Frère inc. | 5820-4157-01 | Laurentides | Active |
| Construction Quartier Marina inc. | 5831-1010-01 | Laurentides | Active |
| Construction R. Bédard inc. | 8305-0120-05 | Laurentides | Active |
| Construction R. Deslauriers inc. | 2437-1569-48 | Laurentides | Active |
| Construction R. Drysdale inc. | 5588-2906-01 | Laurentides | Active |