| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| E R A Electrical Ltd | 01436264 | 01/01/1994 | Dissolved |
| E R A Electrical Ltd | 01436264 | 13/10/2000 | Dissolved |
| E R A Research Ltd | 01436263 | 01/01/1994 | Dissolved |
| E R A Research Ltd | 01436263 | 13/10/2000 | Dissolved |
| Era Electronics Ltd | 01436368 | 01/01/1994 | Dissolved |
| Era Electronics Ltd | 01436368 | 13/10/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHELTON CTS LIMITED | 04044609 | 19/12/2000 | 24/10/2003 | Not Trading |
| CHELTON CTS LIMITED | 04044609 | 24/10/2003 | 30/09/2011 | Not Trading |
| CTS PATENTS LIMITED | 00249130 | 16/05/1991 | 01/07/2010 | Dissolved |
| CTS PATENTS LIMITED | 00249130 | 08/05/1997 | 01/07/2010 | Dissolved |
| CTS PROPERTY COMPANY LIMITED | 04089267 | 19/12/2000 | 20/11/2003 | Dissolved |
| CTS PROPERTY COMPANY LIMITED | 04089267 | 25/11/2003 | 01/07/2010 | Dissolved |
| CULHAM LIGHTNING LIMITED | 03832805 | 06/09/2006 | 01/12/2009 | Dissolved |
| THE ERA FOUNDATION LIMITED | 00170454 | 01/01/1994 | 01/08/2016 | Gold |
| VECTOR FIELDS LIMITED | 01838656 | 25/04/2007 | 01/12/2009 | Dissolved |