| Business | Phone |
| Aaa Constable Svc 25 Hurd St, Lowell 1852 | (978) 453-8275 |
| Appleton Property Rental 1482 Middlesex St, Lowell 1851 | (978) 452-7378 |
| Sullivan & Co 21 George St, Lowell 1852 | (978) 452-0830 |
| Merrimac Detective Agency 148 Raven Rd, Lowell 1852 | (978) 458-0727 |
| Constables Office Middlesex 1800 Skyline Dr, Lowell 1854 | (978) 452-5656 |