| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MICROSYSTEMS MANUFACTURING ASSOCIATES LIMITED | 04415551 | 13/09/2004 | Dissolved |
| MICROSYSTEMS MANUFACTURING ASSOCIATES LIMITED | 04415551 | 25/11/2003 | Dissolved |
| Mancon Holdings Ltd | 02060671 | 31/08/1991 | Dissolved |
| Professional Engineers Insurance Bureau Ltd | 00944888 | 25/10/1996 | Dissolved |
| Schat-Davit Co Holdings Ltd | 00377851 | 31/08/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BENEVOLENT FUND OF THE INSTITUTION OF MECHANICAL ENGINEERS(THE) | 00130981 | 07/05/1998 | 08/06/2006 | Gold |
| ENGINEERS AGAINST POVERTY | 03613056 | 16/12/2003 | 16/03/2004 | Amber |
| ENGINEERS AGAINST POVERTY | 03613056 | 13/12/1999 | 19/07/2011 | Amber |
| FISITA (UK) LIMITED | 03572997 | 01/06/1998 | 15/05/2003 | Bronze |
| FISITA (UK) LIMITED | 03572997 | 02/07/1998 | 31/10/2004 | Bronze |
| Hedgefold Estates Ltd | 02880978 | 21/03/1994 | 13/06/1995 | Dissolved |
| IMECHE SERVICES LIMITED | 01361114 | 01/09/2004 | 18/07/2005 | One Red Flag |
| IMECHE SERVICES LIMITED | 01361114 | 26/02/2000 | 31/03/2006 | One Red Flag |
| MULDER & RIJKE LIMITED | 02014956 | 31/08/1991 | 15/08/1994 | Not Trading |
| MULDER & RIJKE LIMITED | 02014956 | 15/08/1994 | 13/06/1995 | Not Trading |
| OCULO LTD | 04447503 | 13/06/2002 | 01/05/2008 | One Red Flag |
| PALFINGER MARINE UK LIMITED | 02229528 | 31/08/1991 | 31/10/1993 | Gold |
| PALFINGER MARINE UK LIMITED | 02229528 | 01/11/1993 | 13/06/1995 | Gold |
| PROFESSIONAL ENGINEERING PROJECTS LIMITED | 01103638 | 01/09/2004 | 31/03/2006 | Amber |
| PROFESSIONAL ENGINEERING PROJECTS LIMITED | 01103638 | 18/09/1996 | 31/03/2006 | Amber |
| SCHAT-DAVIT COMPANY (ALNWICK) LIMITED | 01924944 | 31/08/1991 | 13/06/1995 | Insolvent |
| Schat Engineering Ltd | 01919870 | 31/08/1991 | 13/06/1995 | Dissolved |
| Schat-Davit Co Ltd | 02231664 | 31/08/1991 | 13/06/1995 | Dissolved |
| THE CROSSNESS ENGINES TRUST | 02141756 | 16/11/1999 | 31/03/2003 | One Red Flag |
| Watercraft (North Sea) Ltd | SC098887 | 30/11/1993 | 13/06/1995 | Dissolved |
| Watercraft International Ltd | 01986450 | 31/08/1991 | 15/08/1994 | Dissolved |
| Watercraft International Ltd | 01986450 | 15/08/1994 | 13/06/1995 | Dissolved |