| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALFRED H KNIGHT ENERGY SERVICES LIMITED | 02051563 | 01/04/2023 | One Red Flag |
| ALFRED H KNIGHT OVERSEAS HOLDINGS LIMITED | 03854922 | 26/04/2016 | Silver |
| ALFRED H KNIGHT SOLID FUELS LIMITED | 04160318 | 29/01/2019 | Amber |
| ALFRED H KNIGHT UK HOLDINGS LIMITED | 04323162 | 26/04/2016 | Silver |
| ALFRED H. KNIGHT HOLDINGS LIMITED | 01945874 | 26/04/2016 | Gold |
| ALFRED H. KNIGHT INTERNATIONAL LIMITED | 00900322 | 01/04/2023 | Silver |
| GRINDING SOLUTIONS LIMITED | 04607181 | 25/10/2024 | Silver |
| MEL WASTE INSIGHTS LIMITED | 11231630 | 01/03/2022 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARTHUR CHATWIN LIMITED | 00716597 | 08/01/2008 | 31/12/2009 | Silver |
| BOLDSCOPE LIMITED | 03019709 | 23/12/2005 | 23/12/2005 | Dissolved |
| BOLDSCOPE LIMITED | 03019709 | 23/12/2005 | 07/12/2007 | Dissolved |
| CABLE PRODUCTS LIMITED | 02636655 | 05/01/2009 | 29/05/2009 | Not Trading |
| CHALKFREE LIMITED | 05227933 | 27/02/2014 | 03/11/2015 | Bronze |
| IONIX DEVELOPMENT COMPANY LIMITED | 01496329 | 05/01/2009 | 29/05/2009 | Not Trading |
| IONIX SYSTEMS LIMITED | 00592717 | 05/01/2009 | 03/04/2009 | Bronze |
| MAYOR (UK) LIMITED | 02632899 | 05/01/2009 | 29/05/2009 | Not Trading |
| MEDIFIX ADHESIVE PRODUCTS LIMITED | 02647046 | 31/10/2004 | 07/12/2007 | Dissolved |
| PENCON LIMITED | 02326618 | 05/01/2009 | 29/05/2009 | Not Trading |
| PENDLE CONNECTORS LIMITED | 01299344 | 05/01/2009 | 29/05/2009 | Not Trading |
| PROMETHEAN (HOLDINGS) LIMITED | 02359658 | 27/02/2014 | 03/11/2015 | Bronze |
| PROMETHEAN LIMITED | 01308938 | 27/02/2014 | 03/11/2015 | Bronze |
| PROMETHEAN TECHNOLOGY LIMITED | 05267601 | 27/02/2014 | 03/11/2015 | Dissolved |
| PROMETHEAN WORLD LIMITED | 07118000 | 27/02/2014 | 03/11/2015 | One Red Flag |
| SCAPA UK LIMITED | 03261510 | 10/03/2003 | 23/05/2006 | Silver |
| VOLEX (NO.1) LIMITED | 00287696 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX (NO.2) LIMITED | 00803304 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX (NO.3) LIMITED | 00721950 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX (NO.4) LTD | 00306945 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX ELECTRICAL PRODUCTS LIMITED | 00509964 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX ELECTRONICS LIMITED | 01475767 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX GROUP HOLDINGS LIMITED | 02830102 | 05/01/2009 | 29/05/2009 | Silver |
| VOLEX INTERCONNECT PRODUCTS LIMITED | 00626860 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX INTERCONNECT SYSTEMS LIMITED | 00517361 | 05/01/2009 | 29/05/2009 | Not Trading |
| VOLEX POWER PRODUCTS (UK) LIMITED | 06714051 | 02/10/2008 | 14/10/2009 | Dissolved |
| WARD & GOLDSTONE LIMITED | 00739402 | 05/01/2009 | 29/05/2009 | Not Trading |