| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARCHITEX EVENTS LTD | 09939225 | 06/01/2016 | Dissolved |
| B P L 2009 Ltd | 06783864 | 06/01/2009 | Dissolved |
| DIVING EVENTS LIMITED | 07522559 | 09/02/2011 | Dissolved |
| EQUIDAE LTD | 07779197 | 17/09/2012 | Dissolved |
| HAMICO LTD | 07662323 | 08/06/2011 | One Red Flag |
| QUARTZ AUTOMOTIVE SERVICES LIMITED | 11528915 | 21/08/2018 | Amber |
| QUARTZ BUSINESS MEDIA LIMITED | 06894834 | 05/05/2009 | Bronze |
| QUARTZ MEDIA LIMITED | 04721289 | 02/04/2003 | Gold |
| QUARTZ SEQUOIA EVENTS LTD | 09357945 | 01/01/2017 | Bronze |
| REDESDALE ARMS LIMITED | 03865043 | 31/07/2015 | Bronze |
| REDESDALE HOLDINGS LTD | 09646893 | 18/06/2015 | Bronze |
| S F Publications Ltd | 01805803 | 10/08/1991 | Dissolved |
| SRM DEVELOPMENTS LIMITED | 10031039 | 29/02/2016 | One Red Flag |
| Snoitcaer Ltd | 01546601 | 15/08/1991 | Dissolved |
| Snoitcaer Two Ltd | 01665730 | 15/08/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BCC (EXHIBITIONS) LIMITED | 02121341 | 11/01/1994 | 17/10/2023 | Bronze |
| BPL BUSINESS MEDIA GROUP LIMITED | 04012586 | 22/11/2004 | 01/01/2013 | Silver |
| BPL BUSINESS MEDIA LIMITED | 02559329 | 01/02/2001 | 07/05/2004 | Bronze |
| Channel Network Events Ltd | 04376498 | 21/02/2002 | 19/12/2008 | Dissolved |
| DMG EVENTS (MEA) LIMITED | 08223257 | 20/09/2012 | 31/01/2014 | Dissolved |
| ESSENTIAL INFRASTRUCTURE EVENTS LTD | 09358146 | 17/12/2014 | 09/12/2019 | Dissolved |
| EVENTS INDUSTRY ALLIANCE LTD | 05645859 | 21/09/2011 | 07/09/2016 | Bronze |
| Gastrade Ltd | 02698901 | 11/08/2000 | 26/04/2001 | Dissolved |
| INDEPENDENT MATERIALS HANDLING EXHIBITIONS LIMITED | 03681670 | 05/03/1999 | 04/10/2011 | Gold |
| INFORMA EXHIBITIONS LIMITED | 05202490 | 10/08/2004 | 04/10/2011 | Gold |
| INTUITIVE EVENTS LTD | 06940050 | 18/01/2016 | 07/07/2020 | Amber |
| LOVEANTIQUES.COM LTD | 05553134 | 02/09/2005 | 24/10/2013 | Not Trading |
| MACK BROOKS SPECIALITY PUBLISHING LIMITED | 08223076 | 20/09/2012 | 05/05/2015 | Dissolved |
| QUASAR EVENTS LIMITED | 02341299 | 30/01/1992 | 25/01/1996 | Dissolved |
| QUEST SUBSCRIPTION SERVICES LIMITED | 02234190 | 14/07/1993 | 19/04/1996 | Dissolved |
| Quality Marketing Services Ltd | 02844378 | 28/06/1996 | 26/04/2001 | Dissolved |
| RIVER STREET EVENTS LIMITED | 02708675 | 12/08/2013 | 07/12/2016 | Amber |
| RIVER STREET LIVE LIMITED | 08980107 | 22/02/2016 | 07/07/2020 | Gold |
| RIVER STREET MEDIA LIMITED | 08541560 | 12/08/2013 | 07/12/2016 | One Red Flag |
| Slimmer Publications Limited | 02370753 | 09/12/1996 | 26/04/2001 | Dissolved |
| TELEGRAPH EVENTS LIMITED | 06916747 | 14/10/2011 | 01/02/2013 | Gold |
| THE ASSOCIATION OF EVENT ORGANISERS LIMITED | 01646966 | 24/09/1998 | 06/09/2017 | Gold |
| TURRET GROUP LIMITED | 02249595 | 24/10/1991 | 26/04/2001 | Bronze |
| Turret Trinity Ltd | 04217658 | 10/08/2001 | 28/10/2004 | Dissolved |
| Winterbrook Ltd | 03108741 | 11/10/1995 | 25/10/1996 | Dissolved |
| Winterbrook Ltd | 03108741 | 11/10/1995 | 26/04/2001 | Dissolved |