| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AUTOMATED MANUFACTURING PROCESSES LIMITED | 05415122 | 13/06/2005 | Dissolved |
| CCT (HINCKLEY) LIMITED | 03925732 | 16/02/2000 | Dissolved |
| CCT (HINCKLEY) LIMITED | 03925732 | 15/02/2000 | Dissolved |
| Contour Cutting Technologies Ltd | 02845594 | 23/04/2001 | Dissolved |
| Contour Cutting Technologies Ltd | 02845594 | 21/11/2000 | Dissolved |
| Frederick Woolley Pressings Ltd | 04871681 | 31/10/2003 | Dissolved |
| Frederick Woolley Pressings Ltd | 04871681 | 31/10/2003 | Dissolved |
| SERTEC ENERGY LIMITED | 06334494 | 31/03/2008 | Dissolved |
| SERTEC ENERGY LIMITED | 06334494 | 31/03/2008 | Dissolved |
| SM 801666 LIMITED | 05525348 | 12/04/2006 | Dissolved |
| SM 801666 LIMITED | 05525348 | 12/04/2006 | Dissolved |
| Sertec Security Products Ltd | 03227597 | 30/07/1996 | Dissolved |
| Sertec Security Products Ltd | 03227597 | 30/07/1996 | Dissolved |
| Sertec Tube & Cylinder Ltd | 03075121 | 03/07/1995 | Dissolved |
| Sertec Tube & Cylinder Ltd | 03075121 | 01/10/2009 | Dissolved |
| Sertec Welding Ltd | 04078061 | 13/10/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AWC INDUSTRIES LIMITED | 04753559 | 24/08/2016 | 30/06/2019 | One Red Flag |
| PANEL TECHNOLOGY LIMITED | 02952654 | 26/07/1994 | 31/08/2007 | Dissolved |
| PANEL TECHNOLOGY LIMITED | 02952654 | 26/07/1994 | 31/08/2007 | Dissolved |
| SERTEC ALUMINIUM STRUCTURES LIMITED | 07735979 | 10/08/2011 | 30/06/2019 | Silver |
| SERTEC AUTO STRUCTURES (UK) LIMITED | 00719490 | 25/08/1991 | 30/06/2019 | Bronze |
| SERTEC CORPORATION LIMITED | 09989098 | 05/02/2016 | 30/06/2019 | Amber |
| SERTEC GROUP HOLDINGS LIMITED | 02957238 | 07/04/1995 | 09/11/2012 | Amber |
| SERTEC GROUP HOLDINGS LIMITED | 02957238 | 07/04/1995 | 30/06/2019 | Amber |
| SERTEC GROUP LIMITED | 08259929 | 18/10/2012 | 30/06/2019 | One Red Flag |
| SERTEC LIGHT STAMPINGS LIMITED | 02944354 | 30/06/1994 | 04/03/2011 | Amber |
| SERTEC LIGHT STAMPINGS LIMITED | 02944354 | 30/06/1994 | 30/06/2019 | Amber |
| SERTEC PRECISION COMPONENTS LIMITED | 00925099 | 24/08/2016 | 30/06/2019 | Gold |
| SERTEC SPRINGS & WIREFORMS LIMITED | 05107360 | 24/08/2016 | 30/06/2019 | Bronze |
| THERMOTEC PLASTICS LIMITED | 00897776 | 31/03/2002 | 24/04/2006 | Silver |
| THERMOTEC PLASTICS LIMITED | 00897776 | 28/10/1995 | 12/04/2006 | Silver |