| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BEL GROUP INVESTMENTS LIMITED | 00334531 | 01/09/2004 | Amber |
| BEL VALVES LIMITED | 00167542 | 01/05/2019 | Silver |
| BRITISH ENGINES (UK) LIMITED | 07159418 | 03/12/2021 | Bronze |
| BRITISH ENGINES HOLDINGS LIMITED | 15174271 | 20/06/2024 | Bronze |
| BRITISH ENGINES LIMITED | 07159707 | 22/04/2010 | Silver |
| CMP MARKETING LIMITED | 00174648 | 20/08/2018 | Silver |
| E-Solvis Investments Ltd | 04019853 | 29/06/2000 | Dissolved |
| MICHELL BEARINGS LIMITED | 09390648 | 03/03/2015 | Silver |
| MICHELL ENGINEERING SERVICES LIMITED | 09833183 | 20/10/2015 | Dissolved |
| ROTARY POWER DRIVES LIMITED | 09329236 | 14/01/2015 | Dissolved |
| ROTARY POWER LTD. | 00931010 | 31/03/2017 | One Red Flag |
| STEPHENSON GOBIN LIMITED | 01061427 | 31/03/2017 | One Red Flag |
| TYNE PRESSURE TESTING LIMITED | 09165220 | 10/10/2014 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BEL VALVES LIMITED | 00167542 | 01/08/2006 | 06/10/2010 | Silver |
| ENERGISE I.T. LIMITED | 04019852 | 29/06/2000 | 06/10/2003 | Dissolved |
| PLEXUS PRESSURE CONTROL LIMITED | SC628159 | 31/05/2019 | 30/06/2020 | Not Trading |
| TRAINING AND DEVELOPMENT RESOURCE LIMITED | 03163754 | 05/11/2012 | 12/05/2014 | Silver |