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| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Gallagher Security | Integrated security | Global | |
| Messe Frankfurt | Access control | Germany | |
| Visonic Ltd. | Intruder alarm | Global | |
| 1st Choice Security Solutions, Inc | RFID | Global | |
| 313 Evolution Private Limited | CCTV | Pakistan | |
| 4Front | Access control | United States of America (USA) | |
| 655 Limited | CCTV | United Kingdom (UK) | |
| A 2 Z Security Services | Manned guarding | United States of America (USA) | |
| AAiD Security Solutions | Asset management | United States of America (USA) | |
| Aarya Ites Pvt. Ltd. | CCTV | India | |
| AB Connect Associates Ltd | Consulting services | United Kingdom (UK) | |
| Adaar Technology | Integrated security | India | |
| Advance Peripheral Systems Ltd | Intruder alarm | United Kingdom (UK) | |
| Advanced Integrated Systems (AIS) | Integrated security | United Arab Emirates | |
| AIS Security Solutions | Integrated security | Middle East | |
| Alfahad Group | CCTV | Middle East | |
| Allscope Technologies Nigeria Ltd. | Global positioning systems | Nigeria | |
| Alrehab Services | Access control | Egypt | |
| American Executive Security, LLC. | Physical security | United States of America (USA) | |
| Amerigard Alarm & Security Corp | Integrated security | North America | |
| ANPR International Limited | Car Park Management Systems | United Kingdom (UK) | |
| Antron Security | CCTV | United Kingdom (UK) | |
| Appelcryn and Associates CC | Training services | South Africa | |
| Argus Global | Biometrics | Australia | |
| Aronson Security Group (ASG) | Integrated security | North America | |
| Arrest Fire & Security Ltd | CCTV | United Kingdom (UK) | |
| Ascendent Technology Group | CCTV | North America | |
| ASL Interamerica Security Trading Inc. | CCTV | United States of America (USA) | |
| Associated Risks Limited | Maritime Security | United Kingdom (UK) | |
| Astrata (Asia Pacific) Pte Ltd | Asset tracking | Singapore | |



