| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Bostrom Group Properties Ltd | 02193326 | 18/04/2001 | Dissolved |
| Bostrom Land Holdings Ltd | 05851263 | 23/08/2006 | Dissolved |
| Newholdco Ltd | 05851265 | 23/08/2006 | Dissolved |
| Ricor (Uk) Ltd | 05114019 | 26/11/2004 | Dissolved |
| Zinteg Alloys Ltd | 01223190 | 01/09/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A. Stokes (Pressings) Ltd | 00839442 | 18/07/1996 | 18/04/2001 | Dissolved |
| A.J. Williams (Small Pressings) Ltd | 02361452 | 15/03/1991 | 18/04/2001 | Dissolved |
| A.J.W. Holdings Ltd | 02305651 | 14/10/1992 | 08/03/2001 | Dissolved |
| BLACK RHINO PROMOTIONS LIMITED | 04861892 | 11/08/2003 | 26/01/2009 | Dissolved |
| BOSTROM PLANT LIMITED | 06266342 | 17/02/2009 | 11/11/2016 | Silver |
| BOSTROM PROPERTY LLP | OC337827 | 05/06/2008 | 11/11/2016 | Silver |
| Bore Stainless Ltd | 02186069 | 20/04/1992 | 20/04/1993 | Dissolved |
| Bostrom Specialist Engineering Ltd | 01365002 | 18/07/1996 | 18/04/2001 | Dissolved |
| Bostrom Vehicle Components Ltd | 01810673 | 18/07/1996 | 18/04/2001 | Dissolved |
| Corvus Suspension Products Ltd | 01820191 | 18/07/1996 | 18/04/2001 | Dissolved |
| Howard Techniques Ltd | 03147066 | 01/02/1996 | 15/01/1997 | Dissolved |
| K A B Engineering Ltd | 02993200 | 18/07/1996 | 18/04/2001 | Dissolved |
| KAB COMPONENTS LIMITED | 00653778 | 31/12/1991 | 18/04/2001 | Dissolved |
| KAB PRESSINGS LIMITED | 01120648 | 18/07/1996 | 18/04/2001 | Dissolved |
| Kab Industries Ltd | 00368210 | 08/03/1995 | 18/04/2001 | Dissolved |
| Kab Tooling Ltd | 01009780 | 18/07/1996 | 18/04/2001 | Dissolved |
| Nettle Investments Iron | 05124871 | 14/05/2004 | 30/06/2004 | Dissolved |
| POLRENT LIMITED | 03386917 | 25/06/1997 | 04/06/2003 | Dissolved |
| Palmer & Shelley Ltd | 02649648 | 18/07/1996 | 18/04/2001 | Dissolved |
| RICOR INTERNATIONAL LIMITED | 05983295 | 21/11/2006 | 28/08/2015 | Bronze |
| RICOR LIMITED | 04161766 | 18/04/2001 | 28/08/2015 | One Red Flag |
| RICOR TRADE HOLDINGS LIMITED | 05851260 | 23/08/2006 | 28/08/2015 | Bronze |
| THE BRIGHT STEEL CO. (TIPTON) LIMITED | 02370968 | 11/04/1992 | 11/04/1993 | Dissolved |
| The C.& P.Jig & Tool Ltd | 00919640 | 18/07/1996 | 18/04/2001 | Dissolved |
| Wilton & Co (Pressings) Ltd | 01351343 | 31/12/1991 | 18/04/2001 | Dissolved |
| Winston Cable Co. Ltd | 01525612 | 18/07/1996 | 18/04/2001 | Dissolved |