Name
 | URL | Country
| Market Cap (US$)
|
|---|
| Traqueur S.A. | http://www.traqueur.fr/ | France | 43 |
| UBIC, Inc. | http://www.ubic.co.jp/ | Japan | 21 |
| ICTS International N.V. | http://www.icts-int.com | Netherlands | 14 |
| SureTrack Monitoring Plc | NA | United Kingdom | 10 |
| Tri-S Security Corporation | http://www.trissecurity.com/ | United States | 6 |
| Allied Security Innovations Inc | http://www.ddsi-cpc.com | United States | Public |
| Advanced Protective Services, Inc. | http://www.besafe247.com/ | United States | Private |
| AMBI Protective Services, Inc. | http://www.ambiworldwide.com | United States | Private |
| American Commercial Security Services, Inc | http://www01.abm.com/ | United States | Private |
| Amsetpro, Inc. | https://www.americanassetprotection.com/ | United States | Private |
| Asset Protection & Security Services, Inc. | http://www.asset-security-pro.com | United States | Private |
| Beau Dietl & Associates | http://www.investigations.com | United States | Private |
| Brink's Inc. | http://www.brinks.com/ | United States | Private |
| Construction Protective Services, Inc. | http://www.ecamsecure.com/ | United States | Private |
| Continental Secret Service Bureau, Inc. | http://www.cssb-inc.com | United States | Private |
| D&D Security/Training Academy, Inc. | http://www.ddsta.com/ | United States | Private |
| Dunbar Armored Inc. | http://www.dunbararmored.com | United States | Private |
| Employee Information Services, Inc. | http://www.employeeinfo.com/ | United States | Private |
| Gavin de Becker & Associates | http://www.gavindebecker.com/ | United States | Private |
| Globe Aviation Services Corporation | http://www.globeaviation.com | United States | Private |
|
