| Business | Phone |
| Advanced Detection Systems Inc Portland 4101 | (207) 773-5307 |
| Protection One Inc 685 Congress St, Portland 4102 | (207) 772-5958 |
| Cell Phones N More 1037 Forest Ave, Portland 4103 | (207) 797-7200 |
| Cell Phones N More 480 Congress St, Portland 4101 | (207) 699-2566 |
| Cell Phones N More 991 Forest Ave, Portland 4103 | (207) 878-9995 |
| Cunningham Security Systems 313 Read St, Portland 4103 | (207) 878-5858 |