| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Advanced Media Group Plc | 02951116 | 22/04/1997 | Dissolved |
| Advanced Media International Ltd | 03093766 | 22/04/1997 | Dissolved |
| Bradford Portman Film Productions Ltd | 01898415 | 18/03/1996 | Dissolved |
| Excellent Pictures Ltd | 02726834 | 01/04/1996 | Dissolved |
| Isis Software Ltd | 03229743 | 17/01/1997 | Dissolved |
| Kidzmedia Plc | 04003290 | 16/05/2001 | Dissolved |
| Mighty Ltd | 02128276 | 01/04/1996 | Dissolved |
| Portman Classics Ltd | 02351004 | 01/05/1997 | Dissolved |
| Portman Global Ltd | 02057929 | 01/04/1996 | Dissolved |
| Portman New Media Ltd | 03112307 | 10/10/1996 | Dissolved |
| Rayvill Ltd | 03048330 | 16/01/1997 | Dissolved |
| The Film Factory Ltd | 03223317 | 01/08/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AN AWFULLY BIG PRODUCTION COMPANY LIMITED | 02868381 | 01/04/1996 | 18/11/1999 | Insolvent |
| BUSY BUSES LIMITED | 04360674 | 26/01/2002 | 14/05/2010 | Dissolved |
| Balloon Films Ltd | 03841577 | 11/10/1999 | 07/08/2000 | Dissolved |
| CLIPSTREAM LIMITED | 03983004 | 03/05/2000 | 16/02/2007 | Dissolved |
| COMING HOME LIMITED | 03205100 | 29/05/1996 | 18/11/1999 | Dissolved |
| CONEXION MEDIA GROUP PLC | 04125263 | 11/12/2000 | 02/07/2002 | Dissolved |
| CONEXION MEDIA LIMITED | 03885961 | 31/01/2000 | 02/07/2002 | Dissolved |
| CONEXION MUSIC LIMITED | 01356293 | 18/01/2002 | 02/07/2002 | Dissolved |
| Clandestine Ltd | 03584475 | 19/06/1998 | 09/09/1998 | Dissolved |
| Clear (Post Production) Ltd | 05495947 | 21/07/2006 | 16/02/2007 | Dissolved |
| DANCEMERIT LIMITED | 02996796 | 01/04/1996 | 18/11/1999 | Dissolved |
| KPOST LIMITED | 04360670 | 26/01/2002 | 16/02/2007 | Insolvent |
| MADELEINE LIMITED | 03132617 | 08/10/1997 | 15/02/1998 | Dissolved |
| NANCHERROW LIMITED | 03575249 | 04/06/1998 | 18/11/1999 | Dissolved |
| OUTPOST POST PRODUCTION LIMITED | 02410243 | 01/04/1996 | 16/02/2007 | Insolvent |
| PORTMAN ENTERTAINMENT LIMITED | 00647800 | 01/04/1996 | 18/11/1999 | Insolvent |
| PORTMAN MEDIA ASSETS LIMITED | 03025003 | 01/04/1996 | 18/11/1999 | Insolvent |
| PORTMAN PRODUCTIONS LIMITED | 02195623 | 01/04/1996 | 18/11/1999 | Insolvent |
| PRIME POST (EUROPE) LIMITED | 05593194 | 14/10/2005 | 05/05/2010 | Amber |
| Pinnacle Pictures Ltd | 02547874 | 11/11/1996 | 18/11/1999 | Dissolved |
| Portman Entertainment Group Ltd | 02120141 | 01/04/1996 | 18/11/1999 | Dissolved |
| Portman Zenith Music Ltd. | 02923797 | 01/04/1996 | 18/11/1999 | Dissolved |
| SCREEN MUSIC SERVICES LIMITED | 03758216 | 31/01/2000 | 02/07/2002 | Dissolved |
| Stanway Films Ltd | 03633099 | 02/10/1998 | 18/11/1999 | Dissolved |
| THE MACHINE ROOM LIMITED | 02541287 | 01/04/1996 | 16/02/2007 | Dissolved |
| VTR MEDIA SERVICES LIMITED | 02054062 | 01/04/1996 | 16/02/2007 | Dissolved |
| VTR POST LIMITED | 03202263 | 21/10/1996 | 16/02/2007 | Dissolved |