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| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Hong Kong Exhibition Services Ltd | Exhibition and conference organising | Hong Kong | |
| Messe Frankfurt | Access control | Germany | |
| Warrior Security Ltd. | Manned guarding | Africa | |
| 123 Pte Ltd | Biometrics | Asia | |
| 1A Hamilton Security Limited | Manned guarding | United Kingdom (UK) | |
| 1st American Investigative Agency | Digital video recording | United States of America (USA) | |
| 24/7 Close Protection Ltd | Physical security | United Kingdom (UK) | |
| Aarya Ites Pvt. Ltd. | CCTV | India | |
| Access-to-Time Ltd (A2T) | CCTV | United Kingdom (UK) | |
| ACS Security Services | Manned guarding | United Kingdom (UK) | |
| ACTAtek Pte. Ltd. | Access control | Singapore | |
| Adani | Employee screening | Belarus | |
| ADEN Services | Physical security | China | |
| Adit Enterprises | CCTV | India | |
| Advance Security | Manned guarding | Sudan | |
| Advanced Digital Security, Inc | CCTV | United States of America (USA) | |
| AIMS Service | Integrated security | Egypt | |
| Al Aqili Future Technologies | Integrated security | United Arab Emirates | |
| Alcon Telecommunication Philippines | CCTV | Philippines | |
| Alfahad Group | CCTV | Middle East | |
| ALGIZ Services Ltd | Consulting services | Germany | |
| All-Star Identification Systems, Inc. | Software | United States of America (USA) | |
| ALLAS Sisteme de Securitate SRL | CCTV | Republic of Moldova | |
| Alrehab Services | Access control | Egypt | |
| American Executive Security, LLC. | Physical security | United States of America (USA) | |
| American Science and Engineering, Inc. (AS&E) | X-ray & metal detection | United States of America (USA) | |
| Anchor Group Services Ltd. | Manned guarding | United Kingdom (UK) | |
| Anil Enterprises | CCTV | India | |
| Ansari Security System | Integrated security | United Arab Emirates | |
| Antron Security | CCTV | United Kingdom (UK) | |



