| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADVOUCH LIMITED | 01138018 | 20/08/2015 | Dissolved |
| DISCOVERY GROUP LIMITED | 03908225 | 19/12/2014 | Dissolved |
| DURRANTS PRESS CUTTINGS LIMITED | 02993233 | 30/10/2007 | Dissolved |
| GORKANA LIMITED | 04765815 | 15/04/2010 | Dissolved |
| PORTFOLIO METRICA LIMITED | 02858278 | 23/10/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CISION GROUP LIMITED | 00874637 | 18/01/2006 | 24/10/2017 | Silver |
| DISCOVERY GROUP HOLDINGS LIMITED | 05687554 | 23/03/2006 | 24/10/2017 | Dissolved |
| GORKANA GROUP HOLDINGS LIMITED | 07295878 | 11/08/2010 | 24/10/2017 | Dissolved |
| NEWSDESK INTERNATIONAL LIMITED | 01475820 | 16/06/2016 | 31/05/2017 | Dissolved |
| OIT LIMITED | 02253968 | 16/06/2016 | 31/05/2017 | Dissolved |
| PERFORMANCE RATINGS AGENCY LIMITED | 03691865 | 16/06/2016 | 31/05/2017 | Dissolved |
| PR NEWSWIRE BENELUX LIMITED | 04094536 | 16/06/2016 | 31/05/2017 | Silver |
| PR NEWSWIRE DISCLOSE LIMITED | 02105583 | 16/06/2016 | 31/05/2017 | Dissolved |
| PR NEWSWIRE EUROPE LIMITED | 01543272 | 16/06/2016 | 31/05/2017 | Silver |
| THE INTERNATIONAL ASSOCIATION FOR MEASUREMENT AND EVALUATION OF COMMUNICATION | 05925751 | 24/11/2010 | 30/06/2017 | Silver |
| TRINT LIMITED | 09225083 | 09/05/2016 | 04/06/2019 | Amber |