| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Carillion Construction (Pfi) Ltd | 03687084 | 22/12/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACCOMMODATION SERVICES (HOLDINGS) LIMITED | 03825262 | 13/08/1999 | 16/11/1999 | Silver |
| AMEY BUILDING LIMITED | 02444100 | 26/04/2000 | 03/09/2001 | Dissolved |
| AMEY COMMUNITY LIMITED | 02564794 | 21/12/2001 | 19/07/2002 | Gold |
| AMEY CONSTRUCTION LIMITED | 02379472 | 26/04/2000 | 20/12/2001 | Gold |
| AMEY HOLDINGS LIMITED | 04388717 | 06/03/2002 | 19/07/2002 | Dissolved |
| AMEY LIMITED | 02379479 | 09/02/2000 | 19/07/2002 | Silver |
| AMEY PROGRAMME MANAGEMENT LIMITED | 03959995 | 06/11/2000 | 19/07/2002 | Not Trading |
| AMEY SERVICES LIMITED | 02507588 | 21/12/2001 | 19/07/2002 | Gold |
| Adept Solutions (Uk) Ltd | 04056157 | 02/08/2001 | 19/07/2002 | Dissolved |
| CARILLION PRIVATE FINANCE LIMITED | 02997859 | 19/03/1998 | 16/11/1999 | Insolvent |
| CARILLION SERVICES LIMITED | 03011791 | 28/09/1998 | 27/08/1999 | Insolvent |
| ECD (COOKHAM WOOD) LIMITED | 03241233 | 18/03/1999 | 16/11/1999 | Dissolved |
| ECD (ONLEY) LIMITED | 03524819 | 18/03/1999 | 16/11/1999 | Dissolved |
| EDUCATION CARE AND DISCIPLINE LIMITED | 03241234 | 18/03/1999 | 16/11/1999 | Dissolved |
| EDUCATION CARE AND DISCIPLINE THREE LIMITED | 03525161 | 18/03/1999 | 16/11/1999 | Dissolved |
| FAZAKERLEY PRISON SERVICES LIMITED | 02984969 | 18/03/1999 | 16/11/1999 | Silver |
| G4S CARILLION LIMITED | 02984970 | 25/02/1998 | 16/11/1999 | Dissolved |
| INTEGRATED ACCOMMODATION SERVICES PLC | 03824397 | 12/08/1999 | 16/11/1999 | Silver |
| Lawnswood Ltd | 02763453 | 28/04/2000 | 03/08/2001 | Dissolved |
| ONLEY PRISON SERVICES LIMITED | 03682678 | 29/04/1999 | 16/11/1999 | Bronze |
| Pasco Construction Management Ltd | 01604937 | 26/05/1998 | 16/11/1999 | Dissolved |
| Pasco International Ltd | 01262298 | 28/09/1998 | 27/08/1999 | Dissolved |
| SEMPERIAN (FAZAKERLEY) LIMITED | 02973624 | 18/03/1999 | 16/11/1999 | Silver |
| SEMPERIAN (ONLEY) LIMITED | 03684775 | 29/04/1999 | 16/11/1999 | One Red Flag |
| THE BUSINESS SERVICES ASSOCIATION | 02834529 | 12/01/2000 | 01/06/2003 | Bronze |
| THE HOSPITAL COMPANY (SWINDON & MARLBOROUGH) HOLDINGS LIMITED | 03825266 | 13/08/1999 | 16/11/1999 | Silver |
| THE HOSPITAL COMPANY (SWINDON & MARLBOROUGH) LIMITED | 03824242 | 12/08/1999 | 16/11/1999 | Silver |
| The Hospital Co Ltd | 02973779 | 18/03/1999 | 04/10/1999 | Dissolved |
| YARLS WOOD IMMIGRATION LIMITED | 04050933 | 31/08/2000 | 19/07/2002 | Dissolved |