| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALBION SECTIONS LIMITED | NF004282 | 02/09/2008 | Dissolved |
| ALBION SECTIONS LIMITED | 02744609 | 20/05/2002 | Silver |
| B & D STEEL (LOTHIAN) LIMITED | 02553850 | 25/05/1995 | Dissolved |
| B & D STEEL SERVICES LIMITED | 02375598 | 25/05/1995 | Not Trading |
| B & D STEEL(SOUTHERN)LIMITED | 01278422 | 25/05/1995 | Dissolved |
| B. & D. STEEL LIMITED | 01404213 | 25/05/1995 | Not Trading |
| BNC (453) LIMITED | 08808638 | 10/12/2013 | Dissolved |
| BYTECOMM LIMITED | 03119916 | 26/11/2002 | Dissolved |
| COBCO (236) LIMITED | 03557140 | 16/06/1998 | Silver |
| COBCO 937 LIMITED | 08089557 | 30/05/2012 | Dissolved |
| COBCO 938 LIMITED | 08090439 | 31/05/2012 | Dissolved |
| COBCO 939 LIMITED | 08096418 | 07/06/2012 | Dissolved |
| COBCO 940 LIMITED | 08096416 | 07/06/2012 | Silver |
| E. GERALD STEEL LIMITED | 02012109 | 25/05/1995 | Dissolved |
| GROCO 937 LIMITED | 11356704 | 11/05/2018 | Dissolved |
| GROCO 940 LIMITED | 11356856 | 11/05/2018 | Gold |
| HOLDCO 940 LIMITED | 13224601 | 25/02/2021 | Gold |
| R. B. IRON & STEEL COMPANY LIMITED, | 00523406 | 22/12/1999 | Dissolved |
| SEBDEN HOLDINGS LIMITED | 13181375 | 05/02/2021 | Bronze |
| SEBDEN STEEL LIMITED | 03026288 | 29/03/1995 | Not Trading |
| SEBDEN STEEL PST LIMITED | 03722221 | 08/03/1999 | Not Trading |
| SEBDEN STEEL QUEST LIMITED | 03567524 | 26/03/1999 | Not Trading |
| SEBDEN STEEL SERVICE CENTRES LIMITED | 02553464 | 25/05/1995 | Silver |
| SEREN STEEL (MIDLANDS) LIMITED | 02091969 | 25/05/1995 | Not Trading |
| SEREN STEEL (SOUTH WALES) LIMITED | 01311701 | 25/05/1995 | Not Trading |
| THE SEBDEN GROUP LIMITED | 03192327 | 30/09/1996 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| B & D STEEL (LOTHIAN) LIMITED | 02553850 | 28/03/1995 | 30/04/2008 | Dissolved |
| B & D STEEL SERVICES LIMITED | 02375598 | 02/02/1995 | 30/04/2008 | Not Trading |
| B & D STEEL(SOUTHERN)LIMITED | 01278422 | 28/03/1995 | 30/04/2008 | Dissolved |
| B. & D. STEEL LIMITED | 01404213 | 02/02/1995 | 30/04/2008 | Not Trading |
| BRAND NEWCO 453 LIMITED | 04455835 | 06/01/2014 | 15/10/2014 | Dissolved |
| COBCO (236) LIMITED | 03557140 | 16/06/1998 | 30/04/2008 | Silver |
| E. GERALD STEEL LIMITED | 02012109 | 28/03/1995 | 30/04/2008 | Dissolved |
| HC 1171 LIMITED | 07820920 | 27/10/2011 | 02/11/2011 | Dissolved |
| ODYN SYSTEMS LIMITED | 03388385 | 25/02/1998 | 24/09/2003 | Gold |
| ODYN SYSTEMS LIMITED | 03388385 | 25/02/1998 | 24/09/2003 | Gold |
| R. B. IRON & STEEL COMPANY LIMITED, | 00523406 | 22/12/1999 | 30/04/2008 | Dissolved |
| SEBDEN STEEL LIMITED | 03026288 | 29/03/1995 | 30/04/2008 | Not Trading |
| SEBDEN STEEL SERVICE CENTRES LIMITED | 02553464 | 28/03/1995 | 30/04/2008 | Silver |
| SEREN STEEL (MIDLANDS) LIMITED | 02091969 | 02/02/1995 | 30/04/2008 | Not Trading |
| SEREN STEEL (SOUTH WALES) LIMITED | 01311701 | 02/02/1995 | 30/04/2008 | Not Trading |
| STRUCTURAL SYSTEMS LIMITED | 03499709 | 02/12/2008 | 01/02/2011 | Dissolved |
| THE SEBDEN GROUP LIMITED | 03192327 | 30/09/1996 | 30/04/2008 | One Red Flag |