| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMEC FOSTER WHEELER (HOLDINGS) LIMITED | 00163609 | 01/01/1996 | 30/11/2001 | Bronze |
| AMEC FOSTER WHEELER ENERGY LIMITED | 01361134 | 30/11/1994 | 30/11/2001 | Bronze |
| AUTOMATED TECHNOLOGY GROUP HOLDINGS LIMITED | 07871655 | 21/09/2015 | 31/12/2015 | Bronze |
| AUTOTECH CONTROLS LIMITED | 09018345 | 21/09/2015 | 31/12/2015 | Dissolved |
| FOSTER WHEELER (G.B.) LIMITED | 00745470 | 17/10/1996 | 30/06/1998 | Silver |
| FOSTER WHEELER (LONDON) LIMITED | 00887857 | 01/01/1996 | 30/06/1998 | Amber |
| FOSTER WHEELER (PACIFIC) LIMITED | 01808047 | 01/01/1996 | 30/06/1998 | Dissolved |
| FOSTER WHEELER (PROCESS PLANTS) LIMITED | 01184855 | 14/08/1997 | 30/06/1998 | Not Trading |
| FOSTER WHEELER E&C LIMITED | 02247293 | 01/01/1996 | 30/06/1998 | Not Trading |
| FOSTER WHEELER ENVIRONMENTAL (UK) LIMITED | 01657494 | 01/05/1996 | 30/06/1998 | Not Trading |
| FOSTER WHEELER EUROPE | 04127813 | 14/12/2000 | 30/11/2001 | Silver |
| FOSTER WHEELER PETROLEUM DEVELOPMENT LIMITED | 01184825 | 23/05/1991 | 30/06/1998 | Dissolved |
| FOSTER WHEELER WORLD SERVICES LIMITED | 01439353 | 01/01/1996 | 30/06/1998 | Silver |
| FW MANAGEMENT OPERATIONS (U.K.) LIMITED | 01628475 | 01/01/1996 | 30/06/1998 | Dissolved |
| Foster Wheeler Petroleum Development & Associates Ltd | 02026163 | 01/01/1996 | 30/06/1998 | Dissolved |
| IGRANIC CONTROL SYSTEMS LIMITED | 02087915 | 21/09/2015 | 31/12/2015 | Dissolved |
| International Management Systems Ltd | 01602826 | 22/09/1997 | 30/06/1998 | Dissolved |
| MUSTANG ENGINEERING LIMITED | SC273548 | 22/03/2013 | 31/12/2015 | Silver |
| OIL INDUSTRIES CLUB LIMITED(THE) | 01575393 | 07/01/1997 | 05/01/1999 | Silver |
| Operations International Ltd | 01631617 | 01/05/1996 | 30/06/1998 | Dissolved |
| PROCESS INDUSTRIES AGENCY LIMITED | 01566425 | 01/01/1996 | 30/06/1998 | Dissolved |
| PROCESS PLANTS SUPPLIERS LIMITED | 00957881 | 14/08/1997 | 30/06/1998 | Not Trading |
| PSJ FABRICATIONS LTD | 01205595 | 21/09/2015 | 31/12/2015 | One Red Flag |
| THE AUTOMATED TECHNOLOGY GROUP LIMITED | 03109235 | 21/09/2015 | 31/12/2015 | One Red Flag |
| THE IGRANIC GROUP LIMITED | 03083310 | 21/09/2015 | 31/12/2015 | Dissolved |
| WOOD GROUP FRONTIER LIMITED | SC203209 | 01/08/2013 | 31/12/2015 | Dissolved |