| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ANSWERBACK LIMITED | 05301993 | 18/04/2007 | Dissolved |
| CASTILLON WORLDWIDE LTD | 08301855 | 01/06/2014 | Gold |
| Crossing Connors Ltd | 02345418 | 15/06/1995 | Dissolved |
| HEAL'S HOLDINGS LIMITED | 06276127 | 12/10/2015 | Amber |
| Havas Media Ltd | 03312369 | 03/04/2000 | Dissolved |
| MALKIN AND TOAD LIMITED | 12923042 | 02/10/2020 | Dissolved |
| OPERATION SMILE UNITED KINGDOM | 04317039 | 09/11/2017 | Silver |
| The Activities Company Limited | 02701019 | 26/03/1992 | Dissolved |
| The Activities Company Limited | 02701019 | 26/03/1992 | Dissolved |
| WILDPET DISTRIBUTION COMPANY LIMITED | 12630341 | 28/05/2020 | Dissolved |
| WILDPET LIMITED | 12634570 | 30/05/2020 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Absolute Media Ltd | 02351904 | 30/01/1995 | 12/06/1998 | Dissolved |
| Bounty Investments Ltd | 03078619 | 06/10/2004 | 20/12/2004 | Dissolved |
| Covent Garden Typesetting Ltd | 02348071 | 30/01/1995 | 12/06/1998 | Dissolved |
| Euro R S C G Ltd | 00841741 | 25/06/1993 | 18/06/2003 | Dissolved |
| Euro Rscg Circle Ltd | 03984257 | 05/01/2004 | 12/10/2005 | Dissolved |
| F C O Ltd | 01410600 | 31/12/1991 | 12/06/1998 | Dissolved |
| Fusion Research Ltd | 01811776 | 30/01/1995 | 12/06/1998 | Dissolved |
| H D M Tandem Communications Ltd | 02314913 | 30/01/1995 | 12/06/1998 | Dissolved |
| HAPPEN GP LIMITED | 07761402 | 14/02/2017 | 31/08/2019 | Dissolved |
| HAVAS EHS DISCOVERY LIMITED | 00908743 | 12/01/2004 | 14/11/2006 | Bronze |
| HAVAS WORLDWIDE LONDON LIMITED | 03675746 | 04/12/1998 | 08/05/2007 | Amber |
| MAITLAND POLITICAL LIMITED | 05566516 | 29/09/2005 | 08/05/2007 | Dissolved |
| Marsteller Little & Strodl Ltd | 00820508 | 30/01/1995 | 12/06/1998 | Dissolved |
| Strongraise Ltd | 02168485 | 30/01/1995 | 12/06/1998 | Dissolved |
| The Horner Collis & Kirvan Co Ltd | 01695262 | 30/01/1995 | 12/06/1998 | Dissolved |