| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Autex (2000) Ltd | 03486134 | 24/12/1997 | Dissolved |
| Autex International Ltd. | 02958968 | 10/11/1994 | Dissolved |
| Environmental Risk Analysis Ltd | 01702041 | 31/12/1992 | Dissolved |
| Lanpro Ltd | 02151363 | 20/06/1991 | Dissolved |
| R P S Cairns Ltd | 02554270 | 21/10/1992 | Dissolved |
| Watertight Solutions Ltd | 03143548 | 06/04/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Brian Clouston (Scotland) Ltd | SC080803 | 06/01/1989 | 06/01/1990 | Dissolved |
| FLOW CONTROL (WATER CONSERVATION) LIMITED | 01885610 | 29/06/2004 | 30/09/2011 | Dissolved |
| R P S GROUP LIMITED | 02087786 | 25/04/1992 | 30/09/2011 | Bronze |