| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HAYMARKET BUSINESS MEDIA LTD. | 01358151 | 01/03/2007 | 19/09/2008 | Dissolved |
| HAYMARKET BUSINESS PUBLICATIONS LIMITED | 01468220 | 30/04/2001 | 01/03/2007 | Dissolved |
| HAYMARKET MEDIA GROUP LTD. | 00267189 | 28/01/2004 | 19/09/2008 | Silver |
| Haymarket Interactive Ltd | 01911243 | 25/03/2003 | 16/09/2004 | Dissolved |
| Haymarket Management Publications Ltd | 00801888 | 06/11/2000 | 01/11/2001 | Dissolved |
| Haymarket Marketing Publications Ltd | 01810242 | 12/04/1995 | 06/11/2000 | Dissolved |
| OLM GROUP LIMITED | 03229463 | 01/07/2010 | 21/04/2011 | One Red Flag |
| PRESSXCHANGE.COM LIMITED | 03992902 | 27/02/2007 | 01/10/2008 | Gold |
| ZINC COMMUNICATE PRODUCTIONS LIMITED | 03136090 | 26/04/2011 | 01/10/2012 | Amber |