| Business | Phone |
| Derby Dog Pound Coon Hollow Rd, Derby 6418 | (203) 736-1467 |
| Derby Municipal Parking Garage 2 Thompson Pl, Derby 6418 | (203) 734-4044 |
| Derby Recycling Ctr 2 Coon Hollow Rd, Derby 6418 | (203) 736-1468 |
| Derby Registrar Of Voters 35 5th St, Derby 6418 | (203) 736-1454 |
| Derby Senior Citizen Ctr 293 Main St, Derby 6418 | (203) 736-1484 |
| Derby Sewage Treatment Plant 1 Caroline St, Derby 6418 | (203) 736-1475 |
| Derby Town Clerk/Vital Statisi 35 5th St, Derby 6418 | (203) 736-1462 |