| Business | Phone |
| F & S Electrical Svc 32 Rio Vista St, North Billerica 1862 | (978) 670-5599 |
| Rixon Elec Inc 3 Republic Rd, North Billerica 1862 | (978) 294-1740 |
| Hughson Electric 148 Rangeway Rd, North Billerica 1862 | (978) 663-4814 |
| Interstate Electrical Svc Corp 70 Treble Cove Rd, North Billerica 1862 | (978) 667-5200 |