| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Dbmcarthur Ltd | 05790569 | 21/04/2006 | Dissolved |
| Digital Radio Marketing Bureau Ltd | 03987524 | 08/05/2000 | Dissolved |
| FIRST CLASS COACH LIMITED | 04491131 | 30/08/2007 | Dissolved |
| Pentacom Communications Ltd | 03099848 | 17/01/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLUE WHALE SYSTEMS LTD | 05582434 | 24/12/2007 | 19/04/2010 | Insolvent |
| Drumchapel Opportunities Training Ltd | SC112629 | 30/07/1991 | 20/02/1992 | Dissolved |
| F M S Public Relations Ltd | SC127969 | 17/10/1991 | 31/10/1991 | Dissolved |
| IMD MEDIA LIMITED | 03238065 | 31/10/2000 | 21/05/2009 | Silver |
| JICRIT LIMITED | 03460035 | 14/09/1998 | 01/01/2003 | Gold |
| MCCANN-ERICKSON NETWORK LIMITED | 01977043 | 10/12/1991 | 24/01/1992 | Silver |
| Ocd Media Ltd | 04053136 | 15/08/2000 | 09/10/2000 | Dissolved |
| RADIO JOINT AUDIENCE RESEARCH LIMITED | 02693823 | 01/03/1994 | 27/07/1998 | Bronze |