| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Balloon Films Ltd | 03841577 | 11/10/1999 | Dissolved |
| DICK FRANCIS.TV LIMITED | 04175300 | 08/01/2002 | Dissolved |
| POPTOPS LIMITED | 06124590 | 01/05/2008 | Dissolved |
| Pinnacle Pictures Ltd | 02547874 | 21/11/2001 | Dissolved |
| Portfolio Entertainment Ltd | 05638587 | 29/11/2005 | Dissolved |
| Portfolio Management & Marketing Ltd | 05416345 | 06/04/2005 | Dissolved |
| Portman Hannibal Productions (1994) Ltd | 02902924 | 15/08/1994 | Dissolved |
| The Children's Literary Enterprises Ltd | 05802342 | 02/05/2006 | Dissolved |
| The Children's Literary Trust | 05760226 | 05/04/2006 | Dissolved |
| VIRTUAL HERO PRODUCTION COMPANY LIMITED | 03053709 | 09/01/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMY INTERNATIONAL ARTISTS LIMITED | 02957872 | 01/04/1995 | 31/07/1996 | Insolvent |
| AN AWFULLY BIG PRODUCTION COMPANY LIMITED | 02868381 | 30/10/1996 | 07/11/2001 | Insolvent |
| Balloon Films Ltd | 03841577 | 11/10/1999 | 07/11/2001 | Dissolved |
| COMING HOME LIMITED | 03205100 | 21/11/2001 | 25/10/2004 | Dissolved |
| Clandestine Ltd | 03584475 | 19/06/1998 | 09/09/1998 | Dissolved |
| DANCEMERIT LIMITED | 02996796 | 21/11/2001 | 25/10/2004 | Dissolved |
| MADELEINE LIMITED | 03132617 | 17/01/1996 | 15/02/1998 | Dissolved |
| NANCHERROW LIMITED | 03575249 | 04/06/1998 | 07/11/2001 | Dissolved |
| PORTMAN ACQUISITIONS LIMITED | 04281524 | 07/09/2001 | 25/10/2004 | Insolvent |
| PORTMAN ENTERTAINMENT LIMITED | 00647800 | 16/01/1997 | 25/10/2004 | Insolvent |
| PORTMAN FILM AND TELEVISION LIMITED | 04274033 | 07/09/2001 | 25/10/2004 | Gold |
| PORTMAN MEDIA ASSETS (NO. 2) LIMITED | 04200479 | 17/04/2001 | 29/08/2001 | Insolvent |
| PORTMAN MEDIA ASSETS (NO. 2) LIMITED | 04200479 | 17/04/2001 | 07/11/2001 | Insolvent |
| PORTMAN MEDIA ASSETS LIMITED | 03025003 | 16/01/1997 | 07/11/2001 | Insolvent |
| PORTMAN PRODUCTIONS LIMITED | 02195623 | 16/01/1997 | 07/11/2001 | Insolvent |
| Pinnacle Pictures Ltd | 02547874 | 16/01/1997 | 07/11/2001 | Dissolved |
| Portman Entertainment Group Ltd | 02120141 | 09/02/1996 | 07/11/2001 | Dissolved |
| Portman Hannibal Productions (1994) Ltd | 02902924 | 15/08/1994 | 19/08/1994 | Dissolved |
| Portman Zenith Music Ltd. | 02923797 | 24/05/1999 | 07/11/2001 | Dissolved |
| Stanway Films Ltd | 03633099 | 30/09/1998 | 07/11/2001 | Dissolved |