| Business | Phone |
| Grenco Societe Financiere 236 Rue Notre-Dame S, Thetford Mines G6G 1J6 | (418) 335-9238 |
| Immeubles 45 45 Rue Notre-Dame S, Thetford Mines G6G 1J1 | (418) 338-5584 |
| Office Municipal D'Habitation 163 Rue Pie-Xi, Thetford Mines G6G 3N3 | (418) 338-3556 |