| Business | Phone |
| R Martin Contracting 385 Richardson Rd, Ashby 1431 | (978) 386-0975 |
| P & L Construction Corp 943 Foster Rd, Ashby 1431 | (978) 386-8693 |
| Hjelm Excavating Inc 739 West Rd, Ashby 1431 | (978) 386-5576 |
| K B Maynard Excavating Co 179 Whitney Rd, Ashby 1431 | (978) 386-7214 |