| Business | Phone |
| Town Administrator 48 S Main St, Middleton 1949 | (978) 777-3617 |
| Town Of Middleton Transfer Sta Natsue Way, Middleton 1949 | (978) 777-5236 |
| Building Inspector 195 N Main St, Middleton 1949 | (978) 777-2850 |
| City Treasurer's Office 48 S Main St, Middleton 1949 | (978) 774-8327 |
| Planning Board 195 N Main St, Middleton 1949 | (978) 777-8917 |
| Electric Light Dept 197 N Main St, Middleton 1949 | (978) 774-4313 |