| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AIRTEK SAFETY NETTING LIMITED | 06378110 | 21/09/2007 | Dissolved |
| BLUE AND CO. LIMITED | 02817971 | 21/05/1993 | Bronze |
| BLUE TASK LIMITED | 03564455 | 01/11/2001 | Silver |
| Nets Work Northern Ltd | 05988638 | 06/11/2006 | Dissolved |
| Palfrey Grant Associates Ltd | 03840387 | 20/12/2000 | Dissolved |
| S & J Construction Management Ltd | 03855308 | 08/03/2000 | Dissolved |
| Steel Works Ltd | 03674185 | 25/11/1998 | Dissolved |
| URBAN ROOFING LIMITED | 06839399 | 06/03/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRTEK SAFETY NETTING SERVICES LIMITED | 06378098 | 24/10/2008 | 09/08/2012 | Silver |
| AIRTEK SAFETY NETTING SERVICES LIMITED | 06378098 | 21/09/2007 | 09/08/2012 | Silver |
| BLUE TASK LIMITED | 03564455 | 15/01/2024 | 20/03/2024 | Silver |
| CLADANCO LIMITED | 02965602 | 01/11/1997 | 30/01/1998 | Gold |
| Composite Construction Ltd | 02028497 | 16/10/1990 | 01/09/1991 | Dissolved |
| NETS WORK LIMITED | 03133710 | 09/11/2000 | 12/09/2011 | Dissolved |