
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| CEM Systems Ltd | Access control | Global | |
| Building Protection Systems (N.I.) Ltd. | Access control | United Kingdom (UK) | |
| Capital Alarms | CCTV | United Kingdom (UK) | |
| Diamond Alarm Systems | CCTV | United Kingdom (UK) | |
| Electronic & Security Services Ltd | Access control | United Kingdom (UK) | |
| Gratte Brothers Security Management Ltd | CCTV | United Kingdom (UK) | |
| Greenhills Security | CCTV | United Kingdom (UK) | |
| Group 4 Security Systems | Access control | United Kingdom (UK) | |
| Police Federation of Northern Ireland | United Kingdom (UK) | ||
| Radiocontact Ltd | CCTV | United Kingdom (UK) | |
| Scan Alarms & Security Systems (UK) Ltd | CCTV | United Kingdom (UK) | |
| Stewart Intruder Alarms Ltd | Access control | United Kingdom (UK) | |
| VIS Security Solutions Ltd | CCTV | United Kingdom (UK) | |



