| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BESSIE RECORDS LTD | 10404736 | 30/09/2016 | Silver |
| Science Systems (Space) Ltd | 02661216 | 13/11/2007 | Dissolved |
| Scisys (Commerce & Industry) Ltd | 04340731 | 13/11/2007 | Dissolved |
| Scisys (Government & Utilities) Ltd | 03851230 | 13/11/2007 | Dissolved |
| Scisys (Space & Defence) Ltd | 02661270 | 13/11/2007 | Dissolved |
| Trenkinch Ltd | 01989416 | 13/11/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SCISYS UK HOLDING LTD | 03426416 | 26/09/2006 | 18/12/2019 | Dissolved |
| SCISYS UK LIMITED | 04373530 | 01/10/2004 | 18/12/2019 | Dissolved |
| Scisys (Government & Utilities) Ltd | 03851230 | 21/12/1999 | 01/10/2004 | Dissolved |
| Scisys (Space & Defence) Ltd | 02661270 | 01/07/1999 | 01/01/2000 | Dissolved |
| XIBIS LIMITED | 03685946 | 12/12/2014 | 18/12/2019 | Dissolved |