
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Adax Business Systems W.L.L. | CCTV | Qatar | |
| Messe Frankfurt | Access control | Germany | |
| PPSS | Physical security | United Kingdom (UK) | |
| 123 Pte Ltd | Biometrics | Asia | |
| 1st American Investigative Agency | Digital video recording | United States of America (USA) | |
| 24/7 Close Protection Ltd | Physical security | United Kingdom (UK) | |
| 4A International, LLC | Consulting services | United States of America (USA) | |
| 4Site Online Ltd. | Integrated security | Western Europe | |
| A C Security Solutions Ltd | Digital video recording | Western Europe | |
| A2Z Security Group | Integrated security | United Kingdom (UK) | |
| AB Connect Associates Ltd | Consulting services | United Kingdom (UK) | |
| Abr Aman AFSTS | CCTV | Saudi Arabia | |
| Absolute Security Ltd. | CCTV | Kenya | |
| Accent GIP | CCTV | Romania | |
| ACPO Crime Prevention Initiatives Ltd | Access control | United Kingdom (UK) | |
| Acropolis Electronic Security Systems. | Integrated security | India | |
| Activator UK | IP networking products | United Kingdom (UK) | |
| Active Vision Inc. | CCTV | United States of America (USA) | |
| AD Porta Security | Manned guarding | United Kingdom (UK) | |
| Ad-Mark Nigeria Company | RFID | Nigeria | |
| Adaar Technology | Integrated security | India | |
| ADEN Services | Physical security | China | |
| Advance Peripheral Systems Ltd | Intruder alarm | United Kingdom (UK) | |
| Advance Security UK Ltd | Manned guarding | United Kingdom (UK) | |
| Advanced Security Partners Ltd | Consulting services | United Kingdom (UK) | |
| Advanced Security Systems | IP networking products | Mexico | |
| Advantech, Inc. | Consulting services | United States of America (USA) | |
| Aegis Security Solutions & Technolgies Ltd. | Intrusion detection | United Kingdom (UK) | |
| Aegis Services Limited | Manned guarding | Bangladesh | |
| Aella Consulting Group, Inc. | Consulting services | United States of America (USA) | |



