
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| PPSS | Physical security | United Kingdom (UK) | |
| RemGuard Visual Management | CCTV | United Kingdom (UK) | |
| Sicura Systems Limited | CCTV | United Kingdom (UK) | |
| SilverNet | IP networking products | United Kingdom (UK) | |
| The Hemming Group Ltd. | Physical security | United Kingdom (UK) | |
| 1 Ace Security | Training services | United Kingdom (UK) | |
| 1A Hamilton Security Limited | Manned guarding | United Kingdom (UK) | |
| 1st Choice CCTV | CCTV | United Kingdom (UK) | |
| 24/7 Close Protection Ltd | Physical security | United Kingdom (UK) | |
| 4i Security | Cards and readers | United Kingdom (UK) | |
| 4Site Online Ltd. | Integrated security | Western Europe | |
| 4Tress Services Ltd. | Manned guarding | United Kingdom (UK) | |
| 655 Limited | CCTV | United Kingdom (UK) | |
| A2Z Security Group | Integrated security | United Kingdom (UK) | |
| AB Security | CCTV | United Kingdom (UK) | |
| Able Security Concepts Ltd | Manned guarding | United Kingdom (UK) | |
| Access Buzzers | Door interface/controls | United Kingdom (UK) | |
| Activator UK | IP networking products | United Kingdom (UK) | |
| Active Communications | CCTV | United Kingdom (UK) | |
| ACUSTEK Ltd | Biometrics | United Kingdom (UK) | |
| AD Porta Security | Manned guarding | United Kingdom (UK) | |
| ADB Alarms Ltd | Intruder alarm | United Kingdom (UK) | |
| ADi security and surveillance | CCTV | United Kingdom (UK) | |
| ADL Fire and Security Ltd | CCTV | United Kingdom (UK) | |
| ADV Security | Intruder alarm | United Kingdom (UK) | |
| Advance Fire Services | Fire Alarms | United Kingdom (UK) | |
| Advance Monitoring Solutions Limited | CCTV | United Kingdom (UK) | |
| Advance Peripheral Systems Ltd | Intruder alarm | United Kingdom (UK) | |
| Advanced Security Developments | CCTV | United Kingdom (UK) | |
| Advanced Vision Surveillance Ltd | CCTV | United Kingdom (UK) | |



