
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| RISCO Group | Integrated Systems & Intruder | Global | ![]() |
| IEE S.A. | Access control | Global | |
| Messe Frankfurt | Access control | Germany | |
| Nedap Security Management | Access control | Global | |
| NUUO, Inc. | Software | Taiwan | |
| Southwest Microwave Ltd. (UK) | Perimeter protection | Global | |
| Texecom | Intruder alarm | United Kingdom (UK) | |
| Xtralis (UK) Ltd | CCTV | United Kingdom (UK) | |
| 21st Century HomeGuard | Intrusion detection | United Kingdom (UK) | |
| 4Site Online Ltd. | Integrated security | Western Europe | |
| A.5 Security Consulting Group | CCTV | Spain | |
| A2Z Security Group | Integrated security | United Kingdom (UK) | |
| AB Security and Fire | Intruder alarm | United Kingdom (UK) | |
| Able Security Concepts Ltd | Manned guarding | United Kingdom (UK) | |
| Access Fire And Security North West | Intruder alarm | United Kingdom (UK) | |
| ACPO Crime Prevention Initiatives Ltd | Access control | United Kingdom (UK) | |
| ACUSTEK Ltd | Biometrics | United Kingdom (UK) | |
| Adams Electronics Inc | Access control | United Kingdom (UK) | |
| ADB Alarms Ltd | Intruder alarm | United Kingdom (UK) | |
| ADi security and surveillance | CCTV | United Kingdom (UK) | |
| ADK Security Ltd | CCTV | United Kingdom (UK) | |
| ADT | Integrated security | South Africa | |
| Advance Peripheral Systems Ltd | Intruder alarm | United Kingdom (UK) | |
| Advanced Research & Technology Ltd. (AR&T) | CCTV | United Kingdom (UK) | |
| Advanced Security Developments | CCTV | United Kingdom (UK) | |
| Aegis Security Solutions & Technolgies Ltd. | Intrusion detection | United Kingdom (UK) | |
| Aleph America Corporation | Intrusion detection | Global | |
| Alink Ltd (Security Installers) | Integrated security | United Kingdom (UK) | |
| Allied Tube & Conduit | Perimeter protection | United States of America (USA) | |
| Alpha Integrated Systems Ltd | CCTV | United Kingdom (UK) | |



