| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALTERNATIVE ACCESS LIMITED | 03760549 | 28/04/1999 | Dissolved |
| ALTERNATIVE ACCESS LOGISTICS LIMITED | 07299684 | 27/09/2011 | Dissolved |
| Access & Roofing Technology Ltd | 03511006 | 11/05/2000 | Dissolved |
| Access & Roofing Technology Ltd | 03511006 | 11/05/2000 | Dissolved |
| Jt Orient Brokers Ltd | 04121180 | 25/06/2001 | Dissolved |
| Soratek Ltd | 05337926 | 20/01/2005 | Dissolved |
| Technitube Ltd | 02139294 | 04/10/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Anchor Access Ltd | 03629492 | 26/05/2000 | 10/03/2003 | Dissolved |
| DC PROPERTY SERVICES (YORKSHIRE) LTD | 07421613 | 10/12/2012 | 01/01/2015 | Silver |
| Heightwize Ltd | 04604018 | 28/11/2002 | 25/06/2003 | Dissolved |
| IMPEX LOGISTIC LIMITED | 04419112 | 17/04/2002 | 01/07/2002 | Dissolved |
| Technitube Access Engineering Ltd | 03387459 | 22/10/1997 | 10/03/1998 | Dissolved |
| Technitube Ltd | 02139294 | 15/09/1992 | 16/10/1995 | Dissolved |
| Thornbury Hill Consulting Engineering Ltd | 03120998 | 25/07/1996 | 15/08/1997 | Dissolved |
| VERTEX ACCESS GROUP LTD | 07819042 | 10/12/2012 | 29/11/2015 | Silver |
| VERTEX ROPE ACCESS LTD | 08776381 | 15/11/2013 | 29/11/2015 | Gold |
| ZEN CORPORATION LIMITED | 03284791 | 27/11/1996 | 30/04/1999 | Silver |
| Zen Spaceframe Corporation Ltd | 03343065 | 22/10/1997 | 26/01/1999 | Dissolved |