| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BIRMINGHAM COLDFORM & SPECIAL FASTENERS LIMITED | 02227339 | 31/03/2014 | Not Trading |
| Central Construction Ltd | 05022908 | 22/08/2007 | Dissolved |
| HYDROBOLT (HOLDINGS) LIMITED | 04772333 | 07/07/2007 | Not Trading |
| HYDROBOLT EBT LIMITED | 07888527 | 31/03/2014 | Gold |
| HYDROBOLT GROUP LIMITED | 05403136 | 31/03/2014 | Not Trading |
| Kb Asset Management Ltd | 05405182 | 06/06/2007 | Dissolved |
| LONESTAR FASTENERS HYDROBOLT LIMITED | 04334786 | 02/04/2008 | Silver |
| PIPELINE PACKAGE SOLUTIONS LIMITED | 08736349 | 31/03/2014 | Not Trading |
| STUDBOLT MANUFACTURING LIMITED | 04670230 | 02/04/2008 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A Waste Management Co Ltd | 03941095 | 14/03/2000 | 01/05/2007 | Dissolved |
| ALL-CLEAR ENVIRONMENTAL SERVICES LIMITED | 02968449 | 19/08/2005 | 01/05/2007 | Dissolved |
| Awmg Realisations 2009 Ltd | 05562748 | 13/01/2006 | 01/05/2007 | Dissolved |
| C Realisations 2009 Ltd | 05928269 | 07/09/2006 | 01/05/2007 | Dissolved |
| Crown Demolition & Dismantling Ltd | 03820433 | 18/08/1999 | 01/05/2007 | Dissolved |
| Foundry Services (West Midlands) Ltd | 01459514 | 29/08/1995 | 01/05/2007 | Dissolved |
| HYDROBOLT (HOLDINGS) LIMITED | 04772333 | 06/06/2007 | 31/03/2014 | Not Trading |
| HYDROBOLT GROUP LIMITED | 05403136 | 06/06/2007 | 31/03/2014 | Not Trading |
| LONESTAR FASTENERS HYDROBOLT LIMITED | 04334786 | 06/06/2007 | 31/03/2014 | Silver |
| LONESTAR UK HOLDCO LIMITED | 06458828 | 31/03/2014 | 27/06/2024 | Amber |
| P.P.F. Asbestos Services Ltd | 05324436 | 13/01/2006 | 01/05/2007 | Dissolved |
| P.P.F. Waste Management Ltd | 04991861 | 13/01/2006 | 01/05/2007 | Dissolved |
| STUDBOLT MANUFACTURING LIMITED | 04670230 | 06/06/2007 | 31/03/2014 | Not Trading |