| Business | Phone |
| Loudon Code Enforcement 8 Cooper St, Loudon 3307 | (603) 798-5584 |
| Loudon Highway Garage 433 Clough Hill Rd, Loudon 3307 | (603) 783-4568 |
| Loudon Selectmens Office 29 S Village Rd, Loudon 3307 | (603) 798-4541 |
| Loundon Town Transfer Station Dump Rd, Loudon 3307 | (603) 783-0170 |