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| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Messe Frankfurt | Access control | Germany | |
| 3DX-RAY Limited | X-ray & metal detection | United Kingdom (UK) | |
| Accent Alarms, Inc | CCTV | North America | |
| ACCTIV8 | Intruder alarm | United Kingdom (UK) | |
| Acropolis Electronic Security Systems. | Integrated security | India | |
| ACTI-TECH LTD | Access control | Nigeria | |
| Adaar Technology | Integrated security | India | |
| Adani | Employee screening | Belarus | |
| Advanced Alarm Technologies | Intruder alarm | United States of America (USA) | |
| Aegis Security Solutions & Technolgies Ltd. | Intrusion detection | United Kingdom (UK) | |
| AFSCAN S.r.l. | X-ray & metal detection | Italy | |
| Agile Security Force | Manned guarding | India | |
| AIS Security Solutions | Integrated security | Middle East | |
| AK Telecom & ITS Services | Consulting services | United Kingdom (UK) | |
| Alfahad Group | CCTV | Middle East | |
| ALLAS Sisteme de Securitate SRL | CCTV | Republic of Moldova | |
| Allscope Technologies Ltd. | Physical security | Nigeria | |
| Allscope Technologies Nigeria Ltd. | Global positioning systems | Nigeria | |
| Alrehab Services | Access control | Egypt | |
| ALTIMA SECURITY TECHNOLOGIES | Physical security | India | |
| American Science and Engineering, Inc. (AS&E) | X-ray & metal detection | United States of America (USA) | |
| Analysed Images | X-ray & metal detection | United Kingdom (UK) | |
| ANSCOM Limited | CCTV | Sri Lanka | |
| Antron Security | CCTV | United Kingdom (UK) | |
| Arya Comm. & Electronics Services Pvt. Ltd. | Locks | India | |
| Aryah Software Solutions Pvt Ltd. | Biometrics | India | |
| AsiaR Solutions Pvt. Ltd. | Communication equipments | India | |
| Astrophysics Inc. | X-ray & metal detection | United States of America (USA) | |
| Atkins Telecoms | Consulting services | Global | |
| Attendance india | Biometrics | India | |



