| Business | Phone |
| Rural Land Surveys 6 Rural Ave, Billerica 1821 | (978) 670-0903 |
| Dresser Williams & Way Inc 36 Webb Brook Rd # 3, Billerica 1821 | (978) 663-5410 |
| Noonan & Mc Dowell Inc 25 Bridge St # 6, Billerica 1821 | (978) 671-9590 |
| John A Hammer Iii 39 1/2 George Brown St, Billerica 1821 | (978) 663-3700 |