| Business | Phone |
| 911 Security Systems Inc 2650 W 35th St, Brooklyn 11224 | (718) 373-7803 |
| Adt Sales & Installation 2177 Albemarle Rd, Brooklyn 11226 | (718) 941-6500 |
| Affordable Security Eqpt Inc 2487 Coney Island Ave, Brooklyn 11223 | (718) 645-5546 |
| Andover Protection System Inc 63 Flushing Ave # 315, Brooklyn 11205 | (718) 643-1110 |
| Associated Security Industries 419 Mcdonald Ave, Brooklyn 11218 | (914) 472-0578 |
| H G Security Systems Inc 90 Schermerhorn St # 1l, Brooklyn 11201 | (718) 858-0446 |
| Champion Security Systems 354 Neptune Ave, Brooklyn 11235 | (718) 743-1096 |
| Mdc Security System 8412 Foster Ave, Brooklyn 11236 | (718) 531-8400 |
| Mdc Security Systems 1080 Coney Island Ave, Brooklyn 11230 | (718) 531-8400 |
| Royal Alarm & Lock 1355 49th St, Brooklyn 11219 | (718) 851-0870 |
| S & J Alarm Screen Inc 6813 New Utrecht Ave, Brooklyn 11219 | (718) 234-0118 |
| Advantage Locksmith 1014 82 St., Brooklyn 11228 | (718) 236-3245 |
| Lock and Tech USA 1375 Coney Island Ave, Brooklyn 11230 | (347) 554-2030 |
| Lock and Tech USA 2406 East 23rd St, Brooklyn 11235 | (347) 569-8100 |
| Lock and Tech USA 104 Clinton St, Brooklyn 11201 | (347) 955-3324 |
| Lock and Tech USA 86-11 4 Ave., Brooklyn 11209 | (347) 554-2349 |
| ADT Security Services - Brooklyn 55 Washington Street, Brooklyn 11201 | (347) 694-8360 |