| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Davis Langdon Computer Systems Ltd | 02682852 | 30/04/1993 | Dissolved |
| Davis Langdon Computer Systems Ltd | 02682852 | 22/02/1995 | Dissolved |
| Davis Langdon Project Services Ltd | 03137394 | 07/02/1996 | Dissolved |
| Davis Langdon Project Services Ltd | 03137394 | 07/02/1996 | Dissolved |
| Holdstore | 02519623 | 25/04/2000 | Dissolved |
| Holdstore | 02519623 | 31/07/1999 | Dissolved |
| MACKENZIE MANAGEMENT SOLUTIONS LTD. | SC226204 | 26/07/2007 | Dissolved |
| P S W Projects Ltd | 01368404 | 23/11/1999 | Dissolved |
| P S W Projects Ltd | 01368404 | 23/11/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DAVIS LANGDON MACKENZIE LIMITED | SC163521 | 25/07/2007 | 01/02/2012 | Dissolved |
| DAVIS LANGDON PROGRAM MANAGEMENT LIMITED | 06731014 | 23/10/2008 | 01/02/2012 | Dissolved |