
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Kawaden Co. Ltd. | CCTV | Japan | |
| K&G Spectrum Inc. | Perimeter protection | United States of America (USA) | |
| K-Pro Tech Co., Ltd. | Digital video recording | Korea (South) | |
| K50 Security | CCTV | United Kingdom (UK) | |
| K9 Matters Dog Training & Security | Training services | United Kingdom (UK) | |
| K9 Search Solutions Limited | Manned guarding | United Kingdom (UK) | |
| K9searchNdetect Limited | Explosives and chemical detection | United States of America (USA) | |
| Kaba | Access control | Global | |
| Kaba Management & Consulting AG | Access control | Global | |
| Kabelsan Wire & Cable Industry Co. Ltd | Cables | Turkey | |
| KAC | Access control | United Kingdom (UK) | |
| Kalamazoo Secure Solutions Limited | Software | United Kingdom (UK) | |
| Kalamazoo-Reynolds | Asset management | United Kingdom (UK) | |
| Kalan Industrial Co., Ltd. | IP networking products | China | |
| Kane Computing | CCTV | United Kingdom (UK) | |
| Kangrosa (Pty) Ltd | CCTV | South Africa | |
| Kantech, Tyco International | Access control | Global | |
| Kaolab | Software | France | |
| KapLogic Corporation | Integrated security | United States of America (USA) | |
| Kapsch BusinessCom AG | CCTV | Austria | |
| Kart-Sis Card Systems Corporation | Access control | Turkey | |
| Keeneo SAS | Software | France | |
| Keeneo Video Analytics | Software | France | |
| Keepsafe Security Installations Ltd | Access control | United Kingdom (UK) | |
| Keico Hightech Inc. (Keico) | Integrated security | Korea (South) | |
| Keico Hightech, Inc. | Access control | Korea (South) | |
| Keltron Corporation | Alarm Monitoring Systems | United States of America (USA) | |
| Kelvedon Risk Consulting Limited | United Kingdom (UK) | ||
| Kemtrak AB | Control equipments | Western Europe | |
| Kenko Co Ltd | CCTV | Japan | |



