| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C A T (Computer-Aided Technology) Ltd | 01880578 | 26/07/1991 | Dissolved |
| Davy U K (Holdings) Ltd | 00566712 | 28/02/1995 | Dissolved |
| Ees Japan Ltd | 01953920 | 26/07/1991 | Dissolved |
| European Electronic Systems (Holdings) Ltd | 01651096 | 26/07/1991 | Dissolved |
| Meta Machines Ltd | 01729192 | 26/07/1991 | Dissolved |
| R.H.I. RECRUITMENT SERVICES LIMITED | 02189295 | 02/04/2008 | Dissolved |
| Ultramatic Engineers Ltd | 01285707 | 26/07/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALCHMEX INTERNATIONAL CONSTRUCTION LIMITED | 01270050 | 28/03/2007 | 08/09/2009 | Bronze |
| AMEC (MHL) LIMITED | 00713103 | 21/02/2000 | 01/10/2004 | Not Trading |
| AMEC (WSL) LIMITED | 00514311 | 21/02/2000 | 01/10/2004 | Not Trading |
| AMEC BKW LIMITED | 00169831 | 19/02/1998 | 01/10/2004 | Gold |
| AMEC FOSTER WHEELER EARTH AND ENVIRONMENTAL (UK) LIMITED | 04987981 | 08/12/2003 | 06/01/2009 | Amber |
| AMEC FOSTER WHEELER GROUP LIMITED | 04612748 | 01/03/2008 | 29/05/2015 | Silver |
| AMEC KAZAKHSTAN HOLDINGS LIMITED | 04530056 | 24/09/2010 | 29/05/2015 | Dissolved |
| AMEC POWER LIMITED | SC043216 | 21/02/2000 | 01/10/2004 | Dissolved |
| AMEC PROCESS AND ENERGY LIMITED | 02028340 | 21/02/2000 | 01/10/2004 | Not Trading |
| AMEC SPARECO (12) LIMITED | 00381547 | 23/05/2001 | 01/10/2004 | Dissolved |
| AMEC SPARECO (9) LIMITED | 00556103 | 21/02/2000 | 16/01/2001 | Dissolved |
| AMEC TRAVEL MANAGEMENT LIMITED | 01205988 | 02/08/2004 | 01/03/2006 | Dissolved |
| AMPLEMARK LIMITED | 04530054 | 24/09/2010 | 29/05/2015 | Dissolved |
| Davy McKee (Poole) Ltd | 00312498 | 26/07/1991 | 26/10/1995 | Dissolved |
| ENVIRONMENTAL ADVICE CENTRE LIMITED | 03505719 | 04/03/2005 | 06/01/2009 | Dissolved |
| European Electronic Systems Ltd | 02349220 | 26/07/1991 | 26/10/1995 | Dissolved |
| JAMES SCOTT LIMITED | SC035281 | 21/02/2000 | 01/10/2004 | Not Trading |
| KVAERNER METALS HOLDINGS LIMITED | 00095906 | 28/02/1995 | 02/10/1995 | One Red Flag |
| KVAERNER METALS LIMITED | 00006662 | 28/02/1995 | 02/10/1995 | Insolvent |
| Kvaerner Metals Contracting Ltd | 00866791 | 27/09/1993 | 02/10/1995 | Dissolved |
| Kvaerner Metals Overseas Holdings Ltd | 01085797 | 28/02/1995 | 02/10/1995 | Dissolved |
| PRIMAT RECRUITMENT LIMITED | 01535391 | 14/04/2003 | 01/03/2006 | Bronze |
| RIDER HUNT INTERNATIONAL LIMITED | 02305615 | 02/04/2008 | 29/05/2015 | Gold |
| SPECIALIST EQUIPMENT SOLUTIONS LIMITED | 01270073 | 01/05/2002 | 26/09/2005 | Bronze |