| Business | Phone |
| Budd-Morgan Alarm Co 3056 Clubhouse Rd, Merrick 11566 | (516) 223-0440 |
| On The Safe Side Inc 1661 Birch Dr, Merrick 11566 | (516) 623-5800 |
| Hicksville Security 2136 Merrick Rd, Merrick 11566 | (516) 931-5452 |
| Nationwide Alarm Co 1835 Merrick Ave, Merrick 11566 | (516) 378-1688 |