| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B.K.C. International Ltd | 04032430 | 14/08/2000 | Dissolved |
| C. & P. Engineering Ltd | 01853609 | 31/05/2002 | Dissolved |
| GT ENGINEERING HOLDINGS LIMITED | 03489701 | 08/05/2013 | Dissolved |
| HOLFORD ENGINEERING LIMITED | 01289444 | 25/03/1999 | Dissolved |
| LAIG ENGINEERING LIMITED | 01139816 | 30/11/1991 | Dissolved |
| Loading Logistics Ltd | 02502974 | 17/05/1991 | Dissolved |
| POLYMER MACHINERY EUROPE LTD | 01022521 | 03/09/2001 | Dissolved |
| UNIMACH MACHINE TOOLS LIMITED | 03655710 | 06/12/2001 | Dissolved |
| Utting Machine Tools Ltd | 02341746 | 31/01/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| D.C. HALL LIMITED | 00798003 | 28/11/1995 | 05/10/2021 | Silver |
| D.C. HALL LIMITED | 00798003 | 30/11/1991 | 05/10/2021 | Silver |
| G.T. ENGINEERING (MARKYATE) LIMITED | 01333906 | 08/05/2013 | 14/01/2022 | Insolvent |
| HEATH ENGINEERING (BEDFORD) LIMITED | 01682772 | 09/11/1999 | 05/10/2021 | Silver |
| J & S PRECISION ENGINEERING LIMITED | 02381173 | 05/05/2011 | 17/12/2019 | Bronze |
| KEMPSTON PRECISION SHEET METAL WORKERS LIMITED | 03160387 | 15/02/1996 | 30/04/2008 | Dissolved |
| M.J.B ENGINEERING LTD | 02067038 | 20/12/1991 | 21/03/2005 | One Red Flag |
| MUSTANG TOOLS LIMITED | 00903340 | 09/07/1999 | 10/04/2002 | Not Trading |
| PRIORY MARINE SERVICES LTD | 06526265 | 06/03/2008 | 01/04/2013 | Dissolved |
| T A B Diamond Tools Ltd | 01888540 | 14/08/1991 | 01/07/1997 | Dissolved |
| WOODMAN ENGINEERING LIMITED | 03434498 | 16/09/1997 | 01/05/2005 | Dissolved |
| WOODMAN ENGINEERING LIMITED | 03434498 | 19/10/2003 | 01/05/2005 | Dissolved |
| Wenlock Engineering (Luton) Ltd | 00845756 | 31/08/1991 | 01/07/1997 | Dissolved |