| Business | Phone |
| Allmass Electric Supply Svc 7 Tulip Cir, Haverhill 1830 | (978) 373-0116 |
| Beacon Electrical Sales 555 Broadway, Haverhill 1832 | (978) 374-4111 |
| Celestica Corp Haverhill 1830 | (978) 372-1500 |
| Ralph Pill Electric Supply Co 558 River St, Haverhill 1832 | (978) 372-6200 |
| Prs Electronics Llc 57 Wingate St # 402, Haverhill 1832 | (978) 374-8900 |