| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C E S (Environmental) Systems Ltd | 01000571 | 14/01/1992 | Dissolved |
| Continuous Casting Company Limited | 00528609 | 14/01/1992 | Dissolved |
| DAVY THORNABY LIMITED | 00573391 | 14/01/1992 | Insolvent |
| Davy Glass Ceramics Ltd | 02389685 | 01/04/1992 | Dissolved |
| Davy McKee Environmental Ltd | 00916462 | 31/07/1992 | Dissolved |
| Davy-Ashmore Ltd | 00885314 | 14/01/1992 | Dissolved |
| HEAD WRIGHTSON MACHINE COMPANY LIMITED(THE) | 00370170 | 14/01/1992 | Dissolved |
| Mineral Engineering Technology Ltd | 02120040 | 14/01/1992 | Dissolved |
| Ningbo Investment Co Ltd | 02068396 | 14/01/1992 | Dissolved |
| Nipawin Limited | 01788873 | 14/01/1992 | Dissolved |
| Pukekohe Construction Ltd | 00327803 | 14/01/1992 | Dissolved |
| R & M Engineering Services Ltd | 05869808 | 02/08/2007 | Dissolved |
| The Railway Construction Company Ltd | 00555205 | 01/04/1992 | Dissolved |
| Young Chemical Engineering Ltd | 00817815 | 14/01/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMENTUM E&C LIMITED | 04967961 | 01/12/2004 | 20/12/2011 | Silver |
| Ashlow Technology Ltd | 00390403 | 03/03/1998 | 20/09/1999 | Dissolved |
| CASPAR KIPLING LIMITED | 07467877 | 13/12/2010 | 25/02/2013 | Dissolved |
| DAVY MCKEE (SHEFFIELD) LIMITED | 00631209 | 09/08/1996 | 26/09/1996 | Insolvent |
| Davy British Rail International Ltd | 01758773 | 29/11/1991 | 05/07/1996 | Dissolved |
| Davy British Rail International Ltd | 01758773 | 12/01/1993 | 01/04/2005 | Dissolved |
| Davy McKee (Poole) Ltd | 00312498 | 30/03/1998 | 01/04/2005 | Dissolved |
| Davy Research & Development Ltd | 02363425 | 01/04/1992 | 22/06/1994 | Dissolved |
| GALLEY HILL FARM LIMITED | 01224632 | 17/10/2000 | 10/03/2013 | Gold |
| HEAD WRIGHTSON PROCESS ENGINEERING LIMITED | 00635264 | 14/01/1992 | 01/04/2005 | Dissolved |
| Head Wrightson Construction Ltd | 02277322 | 01/08/1992 | 01/04/2005 | Dissolved |
| KVAERNER (IOM) LIMITED | 00582981 | 14/01/1992 | 01/10/1996 | Dissolved |
| KVAERNER ENGINEERING & CONSTRUCTION (OVERSEAS TRADING) LIMITED | 00357926 | 30/03/1998 | 01/04/2005 | Insolvent |
| KVAERNER ENGINEERING & CONSTRUCTION UK LIMITED | 00070860 | 14/01/1992 | 01/04/2005 | Insolvent |
| KVAERNER METALS CONTINUOUS CASTING LIMITED | 00573390 | 01/08/1992 | 08/10/1996 | Not Trading |
| Kvaerner E & C Hong Kong Ltd | 01922341 | 30/03/1998 | 01/04/2005 | Dissolved |
| Kvaerner Metals (Korea) Ltd | 00268665 | 14/01/1992 | 01/04/2005 | Dissolved |
| Kvaerner Metals Contracting Ltd | 00866791 | 30/03/1998 | 01/04/2005 | Dissolved |
| Kvaerner Metals Sweden Ltd | 02512844 | 18/06/1992 | 01/04/2005 | Dissolved |
| Railway Construction Co Ltd | 00926449 | 14/01/1992 | 01/04/2005 | Dissolved |
| Recourse Ltd | 02405700 | 19/07/1992 | 02/10/1992 | Dissolved |
| TEES RIVER USERS TRUST LIMITED | 04179273 | 05/08/2003 | 18/04/2012 | Bronze |
| WORLEY E&C INTERNATIONAL LIMITED | 01896128 | 24/10/2008 | 20/12/2011 | Gold |