| Business | Phone |
| Walsh Electric Svc 574 Boston Rd # 2, Billerica 1821 | (978) 663-9050 |
| Aries Electric 4 Cross Rd, Billerica 1821 | (978) 663-2410 |
| Tocco Builders Co 29 Cook St, Billerica 1821 | (978) 663-0292 |
| Trans-Com Electric 346 Boston Rd, Billerica 1821 | (978) 670-0787 |
| Tee Electric 5 Eastview Ave, Billerica 1821 | (978) 663-9192 |
| Teehan Electric 655 Boston Rd, Billerica 1821 | (978) 663-0090 |
| Bagni Electric 83 Alexander Rd, Billerica 1821 | (978) 663-9002 |
| St George Electrical Svc 574 Boston Rd # 3, Billerica 1821 | (978) 671-0980 |
| Minuteman Electric 1 Anniversary Way, Billerica 1821 | (978) 443-0123 |
| Brunell Brothers Electrical 1 Eveready Cir # 8, Billerica 1821 | (978) 663-9860 |
| Bukoiemski Electrical 11 Governor Fuller Rd, Billerica 1821 | (978) 663-3204 |
| Mc Kie Electric 3 Ranlett Ln, Billerica 1821 | (978) 667-7959 |
| Seacoast Electric Inc Billerica 1821 | (978) 667-9191 |
| Casey Electrical Contractors Billerica 1821 | (978) 670-0855 |
| Robert F Demole Electrical 12 Susan Dr, Billerica 1821 | (978) 667-6640 |
| Quarantello Electrical Contr 1 Innis Dr # B, Billerica 1821 | (978) 663-7001 |
| R J Megna Electric Co 3 Jennifer Cir, Billerica 1821 | (978) 670-9007 |
| Pippos Electric 530 Boston Rd, Billerica 1821 | (978) 667-2323 |
| Mahoney Electric 1 Fahey Way, Billerica 1821 | (978) 262-0868 |
| Joseph Caraco Electric Co 18 Eastview Ave, Billerica 1821 | (978) 663-8665 |
| Jack Duggan Electric 8 Hancock St, Billerica 1821 | (978) 362-2900 |