| Business | Phone |
| Beacon Securities System Inc 247 Post Ave, Westbury 11590 | (516) 333-9307 |
| Global Trading Group Inc 195 Hazelwood Dr, Westbury 11590 | (516) 876-4918 |
| Lawful Security Systems 247 Post Ave, Westbury 11590 | (516) 997-8233 |
| Mark Stufano 775 Old Country Rd, Westbury 11590 | (516) 334-4503 |