| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B B 200 Ltd | 01516924 | 15/04/1997 | Dissolved |
| D'Arcy Masius Benton & Bowles Direct Ltd | 01819629 | 15/04/1997 | Dissolved |
| HAVAS PR UK LIMITED | 01881448 | 19/11/2020 | Gold |
| International Marketing & Promotions Ltd | 01681490 | 15/04/1997 | Dissolved |
| International Marketing & Promotions Ltd | 01681490 | 01/04/1997 | Dissolved |
| JUST HEALTH COMMUNICATIONS LTD | 05678111 | 23/06/2015 | Gold |
| MARCOMMS GROUP LIMITED | 06013579 | 12/02/2015 | Amber |
| Summit Profile Ltd | 00640526 | 15/04/1997 | Dissolved |
| Tm Europe Ltd | 03414112 | 15/07/2003 | Dissolved |
| Tm London Ltd | 01511830 | 15/07/2003 | Dissolved |
| Tm London Ltd | 01511830 | 15/07/2003 | Dissolved |
| Tm Ltd | 03523154 | 15/07/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARC INTEGRATED MARKETING LTD | 00926351 | 15/04/1997 | 30/06/2003 | Dissolved |
| ARC INTEGRATED MARKETING LTD | 00926351 | 15/04/1997 | 30/06/2003 | Dissolved |
| Arcim Contracts Ltd | 03640403 | 20/02/1999 | 30/06/2003 | Dissolved |
| CREATIVE LYNX GROUP LTD | 06309202 | 08/08/2012 | 20/07/2022 | Silver |
| CREATIVE LYNX LIMITED | 04028821 | 08/08/2012 | 20/07/2022 | Bronze |
| DIGITAL LYNX LIMITED | 07184273 | 08/08/2012 | 18/06/2024 | Dissolved |
| EDOJAC LIMITED | 04985178 | 16/12/2003 | 16/11/2010 | Dissolved |
| H4B LONDON LIMITED | 03135539 | 11/09/2012 | 20/07/2022 | Silver |
| HAVAS CONSUMER HEALTH LIMITED | 03122353 | 11/09/2012 | 20/11/2014 | Silver |
| HAVAS SO GROUP LTD | 09413184 | 19/06/2017 | 20/07/2022 | Bronze |
| IRIS LIFE COMMUNICATIONS LIMITED | 09237805 | 19/06/2017 | 25/10/2022 | Dissolved |
| LEAGAS DELANEY CZECH REPUBLIC LIMITED | 05882540 | 17/08/2006 | 16/11/2010 | Dissolved |
| LEAGAS DELANEY GROUP LIMITED | 04985282 | 16/12/2003 | 16/11/2010 | One Red Flag |
| M AND C CONSULTANCY LIMITED | 06141495 | 21/02/2018 | 24/10/2023 | Gold |
| MEDICOM GROUP LIMITED | 04675702 | 12/02/2015 | 20/07/2022 | Silver |
| SCITERION LIMITED | 05952856 | 12/02/2015 | 20/07/2022 | Silver |
| SOCIAL LYNX LIMITED | 07453773 | 08/08/2012 | 18/06/2024 | Dissolved |