| Business | Phone |
| Wamesit Engineering Svc 89 Trull Rd, Tewksbury 1876 | (978) 858-0448 |
| Tmt Machine 73 Hillman St, Tewksbury 1876 | (978) 640-2969 |
| R M Precision Machine 120 Lumber Ln, Tewksbury 1876 | (978) 640-2900 |
| Cooper Machine & Design Co 36 Hillman St # 14, Tewksbury 1876 | (978) 858-0485 |