
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| UBM India Pvt. Ltd | Communicators | India | |
| U.S. General Services Administration | Consulting services | United States of America (USA) | |
| U.S. Lock Corporation | Access control | United States of America (USA) | |
| U.S. Security Consultants | Physical security | United States of America (USA) | |
| U.S. Security Consultants (Saber Security) | Physical security | United States of America (USA) | |
| Ubercros Seguridad S.L. | Integrated security | Spain | |
| UBIFRANCE | CCTV | France | |
| UBIQZ Ltd. | IP networking products | United Kingdom (UK) | |
| uControl, Inc. | Control equipments | United States of America (USA) | |
| UDP Co., Ltd. | Digital video recording | Global | |
| UK Doorsets Ltd. | Door interface/controls | United Kingdom (UK) | |
| UK Fire International Ltd | Fire safety | United Kingdom (UK) | |
| UK Watch Ltd | CCTV | United Kingdom (UK) | |
| UK Watch Ltd | CCTV | United Kingdom (UK) | |
| UKB International | Biometrics | United Kingdom (UK) | |
| UKeHUB Ltd | CCTV | United Kingdom (UK) | |
| Ukrainian Newest Telecommunications (UNTC) | IP networking products | Ukraine | |
| UKTI Defence & Security Organisation | Physical security | United Kingdom (UK) | |
| ULIS | Integrated security | Western Europe | |
| Ultimate Protection Systems Ltd | CCTV | United Kingdom (UK) | |
| Ultimate Security Services Limited | Manned guarding | United Kingdom (UK) | |
| Ultra Electronics Card Systems | Access control | United Kingdom (UK) | |
| Ultra Security Systems Ltd | CCTV | United Kingdom (UK) | |
| Ultracker Technology Co., Ltd | CCTV | Taiwan | |
| Ultraneo Development Co.,Ltd | CCTV | China | |
| Umvukele Security Services | Manned guarding | South Africa | |
| Underwater Security Consultants | Consulting services | United Kingdom (UK) | |
| Underworld Software System Corp. | Software | Philippines | |
| UniCQ | Biometrics | United Kingdom (UK) | |
| Unified Security Solutions | Integrated security | United Kingdom (UK) | |



