| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Cartner Engineering Designs Ltd | 00734034 | 03/01/1991 | Dissolved |
| Diko Design Ltd | 03221770 | 02/04/2005 | Dissolved |
| G E D (B B K Designs) Ltd | 01678494 | 01/09/1992 | Dissolved |
| G E D (Southampton) Ltd | 00887805 | 20/12/1990 | Dissolved |
| G E D (Technology) Ltd | 02776990 | 22/12/1992 | Dissolved |
| G E D Ltd | 00434961 | 03/07/1992 | Dissolved |
| GED (DRYBRIDGE) LTD. | 00205074 | 31/05/1991 | Dissolved |
| H & M TECHNICAL PUBLICATIONS LIMITED | 00767359 | 11/08/1991 | Dissolved |
| O T S Services Ltd | 01107667 | 04/10/1992 | Dissolved |
| Phillips,G C,(Designs) Ltd | 01050955 | 25/01/1992 | Dissolved |
| Riegler & Cooke Ltd | 01015825 | 28/12/1991 | Dissolved |
| Techwork (Southampton) Ltd | 00742912 | 17/12/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HEBRON & MEDLOCK PROPERTIES LIMITED | 00352913 | 07/01/1991 | 25/04/2013 | Amber |
| SG AEROSPACE (UK) LIMITED | 01059352 | 31/12/1991 | 25/04/2013 | Silver |
| The Federation of Engineering Design Companies Ltd | 00560086 | 06/09/1993 | 18/09/1995 | Dissolved |
| The Federation of Engineering Design Companies Ltd | 00560086 | 20/11/1991 | 18/09/1995 | Dissolved |