| Business | Phone |
| St Constant Svc Des Loisirs 160 Boul Monchamp, Saint-Constant J5A 2K8 | (450) 635-8414 |
| Saint Constant Garage Mun 25 La Saline Montee, Saint-Constant | (450) 632-9411 |
| Saint-Constant Ecomusee 66 Rue Macon, Saint-Constant J5A 1T1 | (450) 632-3656 |
| Ville De St Constant 147 Rue Saint-Pierre, Saint-Constant J5A 2G9 | (450) 638-2010 |