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| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| LEGIC Identsystems Ltd | Access control | Global | |
| Lumenera Corporation | CCTV | Canada | |
| L'Anubis Limited | Integrated security | Nigeria | |
| L-1 Identity Solutions, Inc. | Biometrics | United States of America (USA) | |
| L-3 Communications Security & Detection Systems | Access control | United Kingdom (UK) | |
| L.A. Alarms | CCTV | United Kingdom (UK) | |
| LA Gard, Inc | Locks | United States of America (USA) | |
| Labor Saving Devices® | Cables | United States of America (USA) | |
| Lacou Limited | Intercom systems | United Kingdom (UK) | |
| Laipac Technology, Inc. | Access control | Canada | |
| Laird & Associates, Inc. | CCTV | United States of America (USA) | |
| Lakeshore Systems Inc | Access control | United States of America (USA) | |
| Lambert & Associates | Access control | United Kingdom (UK) | |
| Laminex | Access control | United States of America (USA) | |
| Laminex-Id Syetems Singapore Pte Ltd | RFID | Singapore | |
| Lan 1 | CCTV | Australia | |
| LAN1 | CCTV | Australia | |
| Lanaccess Telecom | CCTV | Spain | |
| Lancaster Insurance Services | Insurance Services | United Kingdom (UK) | |
| Languard Alarm Co Ltd | CCTV | United Kingdom (UK) | |
| Lanier Representation Group, Inc. | Integrated security | United States of America (USA) | |
| Lantronix | IP networking products | United States of America (USA) | |
| Laser Alarms Ltd | CCTV | United Kingdom (UK) | |
| Laser Star Systems Ltd | IP networking products | Canada | |
| LaserCard Corporation | Access control | United States of America (USA) | |
| Lasershield Systems Inc. | Intruder alarm | United States of America (USA) | |
| LaSmo Security Solutions | Access control | Netherlands | |
| Last Mile Communication | CCTV | Norway | |
| Latin American Security Association (ALAS) | ALAS provides alarms, access control, CCTV, fire detection and security systems integration certified courses. | United States of America (USA) | |
| LATTICE SYSTEMS PANAMA S.A. | Access control | Panama | |



