| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Equinox Medica Ltd | 03733086 | 15/03/1999 | Dissolved |
| Semaphor Bioscience Ltd | 03213416 | 18/06/1996 | Dissolved |
| Semaphor Ltd | 03206689 | 03/06/1996 | Dissolved |
| Semaphor Pharmaceuticals Ltd | 03222061 | 12/03/1998 | Dissolved |
| Semaphor Synthesis Ltd | 03213419 | 15/02/1998 | Dissolved |
| Semaphor Therapeutics Ltd | 03213428 | 18/06/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| IXICO PLC | 03131723 | 22/09/2000 | 13/11/2008 | Silver |
| IXITECH LIMITED | 02466556 | 15/03/2002 | 13/11/2008 | Dissolved |
| PHYTODEVELOPMENTS LIMITED | 02796377 | 09/01/2007 | 13/11/2008 | Dissolved |