| Business | Phone |
| Digital Monitor 25021 Northern Blvd, Flushing 11362 | (718) 225-4800 |
| Elcor International Inc 7740 164th St, Flushing 11366 | (718) 380-8000 |
| Speakeasy Intercom Svc 4344 162nd St, Flushing 11358 | (718) 939-6461 |
| U S Security Inc 7725 164th St, Flushing 11366 | (718) 591-1155 |