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| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Messe Frankfurt | Access control | Germany | |
| Visonic Ltd. | Intruder alarm | Global | |
| Aaxeon Technologies | Communication equipments | United States of America (USA) | |
| Aboundi Inc. | IP networking products | North America | |
| ABP Technology | CCTV | United States of America (USA) | |
| Access Systems Integration, LLC | Integrated security | United States of America (USA) | |
| Accu-Tech Corp. | Access control | United States of America (USA) | |
| Acme Security Systems | CCTV | United States of America (USA) | |
| ACMP | CCTV | Global | |
| ACTAtek Pte. Ltd. | Access control | Singapore | |
| Activator UK | IP networking products | United Kingdom (UK) | |
| ADK Security Ltd | CCTV | United Kingdom (UK) | |
| Advantor System Corporation | Access control | United States of America (USA) | |
| AES-IntelliNet | Fire safety | United States of America (USA) | |
| Afar Communications Inc. | IP networking products | United States of America (USA) | |
| Aiphone Corp. | Intercom systems | United States of America (USA) | |
| Alvarion | IP networking products | Global | |
| Amerigard Alarm & Security Corp | Integrated security | North America | |
| Arinc Inc. | CCTV | United States of America (USA) | |
| Ascendance Wireless | IP networking products | United States of America (USA) | |
| Ascendent Technology Group | CCTV | North America | |
| ASI Advanced Security, Inc. | Intrusion detection | United States of America (USA) | |
| ASL Interamerica Security Trading Inc. | CCTV | United States of America (USA) | |
| Atronic Alarms, Inc | Intrusion detection | United States of America (USA) | |
| AvaLAN Wireless Systems, Inc. | Communication equipments | United States of America (USA) | |
| BAE Systems | Defence and security | Global | |
| Balinor International LLC | Perimeter protection | United States of America (USA) | |
| BearCom | CCTV | United States of America (USA) | |
| Beijing Kuaiyu Technology Co., Ltd | Audio Surveillance & Audio Monitoring microphone | Global | |
| Beijing Topreal Technologies Co., Ltd | Communication equipments | Global | |



