| Business | Phone |
| Vna Svc Inc 560 Durham Rd, Madison 6443 | (203) 245-0436 |
| Social Services Dept 10 School St, Madison 6443 | (203) 245-5655 |
| City Engineering 8 Campus Dr, Madison 6443 | (203) 245-5611 |
| Rhodes & O Neill 348 Boston Post Rd, Madison 6443 | (203) 245-9343 |
| Dog Warden 8 Old 79, Madison 6443 | (203) 245-2721 |
| Highway Garage 16 Fort Path Rd, Madison 6443 | (203) 245-5684 |
| Inland Wetlands 8 Campus Dr, Madison 6443 | (203) 245-5632 |
| Madison Building Official 8 Campus Dr, Madison 6443 | (203) 245-5618 |
| Madison Cable Tv 12 Campus Dr, Madison 6443 | (203) 245-5677 |
| Madison Evarts Archives 8 Meeting House Ln, Madison 6443 | (203) 245-5667 |
| Madison First Selectman 8 Campus Dr, Madison 6443 | (203) 245-5602 |
| Madison Human Resources Dept 8 Campus Dr, Madison 6443 | (203) 245-5603 |
| Madison Municipal Clerk 8 Campus Dr, Madison 6443 | (203) 245-5672 |
| Madison Recreation/Surf Club 8 Campus Dr, Madison 6443 | (203) 245-5628 |
| Madison Registrars Of Voters 8 Campus Dr, Madison 6443 | (203) 245-5671 |
| Madison Town Adm Dept 8 Campus Dr, Madison 6443 | (203) 245-5600 |
| Madison Town Bulky Waste Site 252 Ridge Rd, Madison 6443 | (203) 245-0010 |
| Madison Town Campus Gym 4 Campus Dr, Madison 6443 | (203) 245-5691 |
| Madison Town Depot Meeting Center 9 Old 79, Madison 6443 | (203) 245-5627 |
| Madison Town Senior Citizens 9 Old Route 79, Madison 6443 | (203) 245-5627 |
| Madison Town Visitor Info Ctr 12 School St, Madison 6443 | (203) 245-5659 |