| Business | Phone |
| Tyngsboro Building Inspector 25 Bryant Ln, Tyngsboro 1879 | (978) 649-2303 |
| Tyngsboro Planning Board 25 Bryant Ln, Tyngsboro 1879 | (978) 649-2308 |
| Tyngsboro Planning Board Kendall Rd, Tyngsboro 1879 | (978) 649-2308 |
| Tyngsboro Selectmen Middlesex Rd, Tyngsboro 1879 | (978) 649-2300 |
| Tyngsboro Town Clerk's Office 25 Bryant Ln, Tyngsboro 1879 | (978) 649-7103 |
| Tyngsboro Town Office 25 Bryant Ln, Tyngsboro 1879 | (978) 649-2300 |
| Tyngsboro Town Sewer Comm 25 Bryant Ln, Tyngsboro 1879 | (978) 649-2311 |
| Tyngsboro Treasurer's Office 25 Bryant Ln, Tyngsboro 1879 | (978) 649-2307 |
| Tyngsboro Veterans Office 25 Bryant Ln, Tyngsboro 1879 | (978) 649-2305 |