| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ABLOY SECURITY LIMITED | 02078532 | 02/02/2009 | Dissolved |
| ASSA LIMITED | 02066014 | 02/02/2009 | Dissolved |
| SAFEGUARD DOORS LIMITED | 04230789 | 25/03/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADAMS RITE EUROPE LIMITED | 01217948 | 22/02/2008 | 06/10/2015 | Dissolved |
| ASSA ABLOY LIMITED | 02096505 | 05/10/2005 | 31/08/2022 | Silver |
| C. E. MARSHALL LIMITED | 00321244 | 02/02/2009 | 22/10/2012 | Insolvent |
| CENTURY LOCKS LIMITED | 02154075 | 02/02/2009 | 22/10/2012 | Dissolved |
| CHUBB LOCKS CUSTODIAL SERVICES LIMITED | 04007574 | 02/02/2009 | 01/12/2014 | Dissolved |
| CHUBB LOCKS LIMITED | 01387734 | 02/02/2009 | 22/10/2012 | Dissolved |
| CHUBB LOCKS UK LIMITED | 00916461 | 02/02/2009 | 22/10/2012 | Dissolved |
| DITEC ENTREMATIC UK LTD | 01368008 | 02/02/2009 | 03/06/2010 | Dissolved |
| EDWIN SHOWELL & SONS LIMITED | 00075394 | 02/02/2009 | 22/10/2012 | Dissolved |
| IDENTRUST IDENTITIES LIMITED | 01526540 | 24/10/2005 | 22/10/2012 | Dissolved |
| INGERSOLL LOCKS LIMITED | 00359973 | 02/02/2009 | 22/10/2012 | Dissolved |
| JOSIAH PARKES & SONS LIMITED | 00704809 | 02/02/2009 | 21/07/2019 | Not Trading |
| LASER KEY LIMITED | 04905728 | 02/02/2009 | 22/10/2012 | Dissolved |
| SECURITY PRODUCTS UK LIMITED | 01403050 | 02/02/2009 | 21/07/2019 | Not Trading |
| TRAKA LIMITED | 03088893 | 06/04/2012 | 08/09/2015 | Insolvent |
| UNION LOCKS LIMITED | 00107633 | 02/02/2009 | 22/10/2012 | Dissolved |
| W.J.GOODWIN & SON,LIMITED | 00401988 | 02/02/2009 | 22/10/2012 | Dissolved |
| YALE DOOR AND WINDOW SOLUTIONS LIMITED | 00400718 | 02/02/2009 | 22/10/2012 | Dissolved |
| YALE LOCKS LIMITED | 01767232 | 02/02/2009 | 22/10/2012 | Dissolved |