| Business | Phone |
| Morin Lemieux & Assoc 63 Boul Tache O, Montmagny G5V 3A3 | (418) 248-3114 |
| Pelletier Lavoie 25 Boul Tache O #201, Montmagny G5V 2Z9 | (418) 248-7474 |
| Blanchet Gaudreault 68 Rue Du Palais-De-Justice, Montmagny G5V 1P5 | (418) 248-1001 |
| Daveluy, Robert 46 Rue Saint-Jean-Baptiste E #22, Montmagny G5V 1J8 | (418) 248-1072 |
| Dumontier, Pierre 116 Av De La Gare, Montmagny G5V 2T3 | (418) 248-4848 |