
| Company name | Primary business area | Primary coverage | |
|---|---|---|---|
| Dallmeier electronic GmbH & Co.KG | CCTV | Global | |
| Dedicated Micros | CCTV | Global | |
| Delos International Group Ltd. | Access control | Hong Kong | |
| Detector Technologies Ltd | Explosives and chemical detection | United Kingdom (UK) | |
| Diversified Events Hong Kong Ltd. | Exhibition and conference organising | Hong Kong | |
| DSC | Intruder alarm | Global | |
| DSX Access Systems, Inc. | Access control | Global | |
| D E S Security Systems | Integrated security | United Kingdom (UK) | |
| D-Link | Digital video recording | United States of America (USA) | |
| D-max (Dongyang Unitech Co.) | CCTV | Australia & NZ | |
| D-MAX (DongYang Unitech Co., Ltd) | CCTV | Korea (South) | |
| D-TEG Security Co., Ltd | Mobile DVR for Transportation | Korea (South) | |
| D.N.W. Security Systems | CCTV | United Kingdom (UK) | |
| D.S.V. Srl | CCTV | Western Europe | |
| D3Data | HostedVideo.com | Software | United States of America (USA) | |
| DAccess Tehnologies | Access control | India | |
| Dahua Technology Ltd | Digital video recording | Global | |
| Dailianxu Engineering Co. Ltd. | CCTV | Global | |
| DAILY RFID Co.,Ltd | RFID | China | |
| Daiwon Optical Co. Ltd. | Producers and exporters of Lenses | Korea (South) | |
| Dakota Alert, Inc. | Intrusion detection | United States of America (USA) | |
| Dalen Ltd | CCTV | United Kingdom (UK) | |
| Dalian Modern High-Tech Development Co., Ltd. | Software | China | |
| Dalycom | IP networking products | United Kingdom (UK) | |
| Danaide S.A. | CCTV | South America | |
| Danetech, Inc | IP networking products | United States of America (USA) | |
| Danpex Corporation | IP networking products | United States of America (USA) | |
| Dansk Videosikring | CCTV | Denmark | |
| Dantech | Access control | United Kingdom (UK) | |
| Dantel, Inc. | Network Management Solutions | United States of America (USA) | |

Hirsch designs and manufactures security systems for worldwide markets. Hirsch's award-winning security and identity management systems integrate access control, video surveillance, intrusion detection, digital certificates, smart cards and biometrics.
Hirsch is part of SCM Microsystems, Inc., provider of the world's broadest range of smart card readers. Together, SCM and Hirsch bring convergence to reality by integrating physical and logical security. Their solutions enable organisations and individuals to secure their facilities, computers and commerce.
SCM and Hirsch customers achieve the risk mitigation, cost reduction, and reputation protection that lead to success. (NASDAQ: SCMM, Prime Standard: SMY)


