| Construction P.L.X. Inc. | 5873-5358-01 | Lanaudière | Active |
| Construction P.o.Cyr inc. | 5802-2146-01 | Capitale-Nationale | Active |
| Construction P.P.L. Bouffard inc. | 5592-4179-01 | Laurentides | Active |
| Construction P.S. Lesage inc. | 5646-6105-01 | Mauricie | Active |
| Construction Pacheco inc. | 5762-2797-01 | Laval | Active |
| Construction Pager-Masse inc. | 5705-3415-01 | Montréal | Active |
| Construction Paillé et Fils inc. | 5834-3799-01 | Montérégie | Active |
| Construction Palm inc. | 5830-1557-01 | Laval | Active |
| Construction Pamaco inc. | 5820-3472-01 | Laurentides | Active |
| Construction Panache (2017) inc. | 5719-6495-01 | Laurentides | Active |
| Construction Panam inc. | 5825-3261-01 | Estrie | Active |
| Construction Panoramique inc. | 5810-5214-01 | Estrie | Active |
| Construction Pantera inc. | 5863-0732-01 | Capitale-Nationale | Active |
| Construction Paradox inc. | 5674-6944-01 | Nord-du-Québec | Active |
| Construction Parallèle inc. | 8304-1087-28 | Laurentides | Active |
| Construction Parallex inc. | 5872-9831-01 | Lanaudière | Active |
| Construction Parapet inc. | 5752-6899-01 | Montréal | Active |
| Construction Paro inc. | 5866-9169-01 | Montérégie | Active |
| Construction Parox inc. | 8258-4897-48 | Montérégie | Active |
| Construction Pascal Beauregard inc. | 5845-6716-01 | Estrie | Active |
| Construction Pascal Boucher inc. | 5654-5080-01 | Lanaudière | Active |
| Construction Pascal Bouvrette inc. | 5588-0587-01 | Lanaudière | Active |
| Construction Pascal Breton inc. | 5650-0333-01 | Chaudière-Appalaches | Active |
| Construction Pascal Briand inc. | 5596-1205-01 | Laurentides | Active |
| Construction Pascal Charbonneau inc. | 5724-1994-01 | Lanaudière | Active |
| Construction Pascal Grenier Inc. | 5596-4704-01 | Estrie | Active |
| Construction Pascal Lanoue Inc. | 8314-8940-09 | Montréal | Active |
| Construction Pascal Nadeau inc. | 5701-0902-01 | Chaudière-Appalaches | Active |
| Construction Pascal Rognon & Fils Inc. | 5795-1188-01 | Montérégie | Active |
| Construction Pascal Rondeau Inc | 8358-4482-01 | Laurentides | Active |
| Construction Pascal St-Jacques inc. | 8344-1428-42 | Lanaudière | Active |
| Construction Pasco inc. | 8355-8759-13 | Laurentides | Active |
| Construction Pat Boucher Inc. | 5604-4944-01 | Lanaudière | Active |
| Construction Pat Chevalier inc. | 5731-5806-01 | Capitale-Nationale | Active |
| Construction Pat Marchand inc. | 5786-3482-01 | Mauricie | Active |
| Construction Patio Horizon inc. | 5813-9700-01 | Lanaudière | Active |
| Construction Patrice Lefrançois Inc. | 5664-0717-01 | Lanaudière | Active |
| Construction Patrice Roy inc. | 8337-2300-10 | Chaudière-Appalaches | Active |
| Construction Patrick Belisle inc. | 8326-7864-19 | Laurentides | Active |
| Construction Patrick Bellefeuille inc. | 5838-2094-01 | Lanaudière | Active |
| Construction Patrick Bernier 2015 inc. | 5709-1266-01 | Capitale-Nationale | Active |
| Construction Patrick Blain inc. | 5777-2394-01 | Estrie | Active |
| Construction Patrick Boily inc. | 5720-7805-01 | Saguenay--Lac-Saint-Jean | Active |
| Construction Patrick Brochu inc. | 5869-9984-01 | Estrie | Active |
| Construction Patrick Desjardins inc | 8240-2439-59 | Laurentides | Active |
| Construction Patrick Dubé inc. | 8328-5882-49 | Montérégie | Active |
| Construction Patrick Dussault inc. | 8340-6215-55 | Laurentides | Active |
| Construction Patrick Gaudron inc. | 5642-3098-01 | Montérégie | Active |
| Construction Patrick Grondin Inc. | 5747-4108-01 | Chaudière-Appalaches | Active |
| Construction Patrick Guay inc. | 5689-4272-01 | Lanaudière | Active |