| Business | Phone |
| Parsons & Faia Inc 60 Lewis Ln, Saugus 1906 | (781) 593-7927 |
| Engineering Alliance 194 Central St # 2, Saugus 1906 | (781) 231-1349 |
| Flynn Engineering 12 Ernest St, Saugus 1906 | (781) 233-0066 |
| Mc Kenzie Engineering Group 325 Central St, Saugus 1906 | (781) 941-2211 |