| Name | Exchange | Symbol | Last trade | Change | Mkt cap | |
| VT Communications | Private | |||||
| First City Care (London) plc | Private | |||||
| Niscayah Limited | Private | |||||
| Total Security Protection Ltd. | Private | |||||
| Anglo Design Holdings Plc | Private | |||||
| Protec plc | Private | |||||
| Aurora Computer Services Ltd. | Private | |||||
| Reliance Security Group plc | Private | |||||
| Stanley Security Solutions - Europe Limited | Private | |||||
| OCS Group Limited | Private | |||||
| Human Recognition Systems Ltd. | Private |