| Business | Phone |
| Architects Workshop 396 Nh Route 49, Campton 3223 | (603) 726-3900 |
| Architects Workshop Depot Rd, Campton 3223 | (603) 726-3900 |
| Michael C Piazza Architect 8 Rosy Ln, Campton 3223 | (603) 536-1149 |
| Michael C Piazza Route 49, Campton 3223 | (603) 726-3149 |