| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Nuclear & Silica Products Ltd | 00930426 | 01/05/1993 | Dissolved |
| Quartz & Silica (U K) Plc | 02189674 | 01/05/1993 | Dissolved |
| Silica Syndicate Limited | 00089082 | 01/05/1993 | Dissolved |
| T S L Fibre Optic Ltd | 01974088 | 16/04/1993 | Dissolved |
| T S L Quadrant Ltd | 00761647 | 01/05/1993 | Dissolved |
| Tsl Export Limited | 01758479 | 01/05/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SAINT-GOBAIN HIGH PERFORMANCE SOLUTIONS UK LIMITED | 00245722 | 28/02/1994 | 23/08/2005 | Bronze |
| SAINT-GOBAIN SEMICON SERVICES LIMITED | SC084093 | 01/05/1993 | 01/08/2005 | Dissolved |
| Sepr Uk Ltd | 01036746 | 01/06/1993 | 21/04/2005 | Dissolved |