| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 35/36 RUTLAND GATE TENANTS MANAGEMENT COMPANY LIMITED | 01061534 | 26/06/1991 | Gold |
| AMMOTTO LTD | 15521514 | 26/02/2024 | Amber |
| ESREVID ENERGY LIMITED | 08276391 | 01/11/2012 | Dissolved |
| Fuel Cell (Rh) Ltd | 06188544 | 16/05/2007 | Dissolved |
| Fuel Cell Control Ltd | 03808320 | 01/07/2003 | Dissolved |
| Fuel Cell Control Ltd | 03808320 | 29/09/1999 | Dissolved |
| LETAQ NH3 POWER SYSTEMS LTD | 12865366 | 08/09/2020 | Dissolved |
| LETAQ TECHNOLOGIES LTD | 12576132 | 28/04/2020 | Dissolved |
| MORECELL LIMITED | 07548776 | 30/06/2011 | Dissolved |
| Nelco Electric Ltd | 02693087 | 15/09/1992 | Dissolved |
| TOWER POWER LTD | 07638149 | 07/01/2013 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COERCIVE GROUP LIMITED | 02655897 | 19/11/1991 | 01/12/1993 | Silver |
| DIVERSE ENERGY (UK) LIMITED | 04358735 | 04/09/2008 | 16/08/2010 | Dissolved |
| DIVERSE ENERGY LIMITED | 04223296 | 04/09/2008 | 16/08/2010 | Dissolved |
| Fuel Cell (Rh) Ltd | 06188544 | 16/05/2007 | 05/03/2008 | Dissolved |
| Fuel Cell Control Ltd | 03808320 | 29/09/1999 | 16/07/2001 | Dissolved |