| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Manor Jazz Festivals Ltd | 01906717 | 09/03/1992 | Dissolved |
| Moving Forward Ltd | 02632513 | 25/07/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BROAD CHURCH PROPERTY LIMITED | 05468713 | 01/06/2005 | 31/05/2020 | Dissolved |
| IN ALL SERIOUSNESS MUSIC LIMITED | 04985288 | 04/12/2003 | 01/06/2019 | Amber |
| LONDON INTERNATIONAL JAZZ FESTIVAL LIMITED | 03174471 | 18/03/1996 | 01/06/2019 | Not Trading |
| LONDON JAZZ FESTIVAL LIMITED | 02858097 | 27/10/1993 | 01/06/2019 | Not Trading |
| Ocean Music Trust | 03095881 | 23/08/1995 | 08/09/1999 | Dissolved |
| SERIOUS EVENTS LIMITED | 03307985 | 27/01/1997 | 01/06/2019 | Bronze |
| SERIOUS LIMITED | 03111637 | 09/10/1995 | 01/06/2019 | Silver |
| SERIOUS MANAGEMENT LIMITED | 03271461 | 30/10/1996 | 01/06/2019 | Not Trading |