| Business | Phone |
| Assurances Fontaine Lemay 234 Boul Tache E, Montmagny G5V 1C2 | (418) 248-3358 |
| Marceau, Gilles 131 Rue Saint-Louis, Montmagny G5V 1N3 | (418) 248-0150 |
| Service Financier R Samson 114 Av De La Gare, Montmagny G5V 2T3 | (418) 248-3583 |
| Gaston Tanguay 286 Boul Tache O, Montmagny G5V 3R8 | (418) 248-1347 |