Page 1 of 17 pages

| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Arena International | Integrated security | United Kingdom (UK) | |
| China Security and Protection Industry Association (CSPIA) | Access control | China | |
| IIR Conferences | Integrated security | Australia | |
| Messe Frankfurt | Access control | Germany | |
| The Hemming Group Ltd. | Physical security | United Kingdom (UK) | |
| Warrior Security Ltd. | Manned guarding | Africa | |
| 1A Hamilton Security Limited | Manned guarding | United Kingdom (UK) | |
| 1A Time Security Services | Manned guarding | United Kingdom (UK) | |
| 24/7 Close Protection Ltd | Physical security | United Kingdom (UK) | |
| 3D Security Ltd. | Manned guarding | United Kingdom (UK) | |
| 4 Forces Security Limited | Manned guarding | United Kingdom (UK) | |
| 4 Site Security | Manned guarding | United Kingdom (UK) | |
| 4Site Online Ltd. | Integrated security | Western Europe | |
| 4Tress Services Ltd. | Manned guarding | United Kingdom (UK) | |
| A 2 Z Security Services | Manned guarding | United States of America (USA) | |
| AAA Security Service | Manned guarding | United States of America (USA) | |
| AB Connect Associates Ltd | Consulting services | United Kingdom (UK) | |
| Able Security Concepts Ltd | Manned guarding | United Kingdom (UK) | |
| Absolute Security Ltd. | CCTV | Kenya | |
| ACCTIV8 | Intruder alarm | United Kingdom (UK) | |
| Ace Consult Security Services | Manned guarding | United Kingdom (UK) | |
| ACMP | CCTV | Global | |
| ACS Security Services | Manned guarding | United Kingdom (UK) | |
| AD Porta Security | Manned guarding | United Kingdom (UK) | |
| ADA Security Services Ltd. | Manned guarding | United Kingdom (UK) | |
| ADEN Services | Physical security | China | |
| Adit Enterprises | CCTV | India | |
| ADP Security Systems | CCTV | Western Europe | |
| Advance Security | Manned guarding | Sudan | |
| Advance Security UK Ltd | Manned guarding | United Kingdom (UK) | |



