| Business | Phone |
| Ward G Hannes Heating & Air 3 Virginia Rd, Tyngsboro 1879 | (978) 392-9988 |
| Currier Heating & Cooling 24 Chestnut Rd, Tyngsboro 1879 | (978) 649-0992 |
| Lamco Systems Inc 4 Cummings Rd, Tyngsboro 1879 | (978) 649-3868 |
| Horizon Metal Inc 21 Westech Dr, Tyngsboro 1879 | (978) 649-4975 |