| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AUDIENCE COMMUNICATIONS LIMITED | 06556369 | 08/05/2008 | Dissolved |
| Emcsaatchi Ltd | 04033297 | 26/03/2001 | Dissolved |
| INSIDE ADVERTISING LTD. | 05843727 | 16/06/2010 | Dissolved |
| INSIDE MOBILE LTD. | 05842874 | 16/06/2010 | Dissolved |
| M&C SAATCHI MOBILE INTERNATIONAL HOLDINGS LIMITED | 08388202 | 28/02/2013 | Dissolved |
| M&C SAATCHI RUSSIA LIMITED | 07560106 | 10/03/2011 | Dissolved |
| M&c Saatchi (Management) Ltd | 03212385 | 14/06/1996 | Dissolved |
| M&c Saatchi (Middle East & Africa) Ltd | 06678459 | 09/09/2008 | Dissolved |
| PROVENANCE COMMUNICATIONS LIMITED | 05629153 | 12/12/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HUMAN DIGITAL LIMITED | 07510403 | 12/04/2017 | 30/09/2023 | One Red Flag |
| INFLUENCE COMMUNICATIONS LIMITED | 04917646 | 05/11/2003 | 26/09/2023 | Dissolved |
| LIDA LIMITED | 03860916 | 04/04/2001 | 26/09/2023 | Silver |
| M&C SAATCHI (UK) LIMITED | 03003693 | 26/06/1996 | 26/09/2023 | One Red Flag |
| M&C SAATCHI EUROPEAN HOLDINGS LIMITED | 05982868 | 21/12/2006 | 30/09/2023 | Amber |
| M&C SAATCHI EXPORT LIMITED | 03920028 | 01/02/2000 | 26/09/2023 | Bronze |
| M&C SAATCHI GERMAN HOLDINGS LIMITED | 06227163 | 22/11/2007 | 30/09/2023 | One Red Flag |
| M&C SAATCHI MIDDLE EAST HOLDCO LIMITED | 09374189 | 30/01/2015 | 30/09/2023 | Gold |
| M&C SAATCHI MOBILE LIMITED | 05437661 | 16/06/2010 | 30/09/2023 | Silver |
| M&C SAATCHI SPORT & ENTERTAINMENT LIMITED | 03306364 | 13/02/2006 | 30/09/2023 | One Red Flag |
| M&C SAATCHI TALK LIMITED | 04239240 | 18/07/2001 | 30/06/2010 | Silver |
| M&C SAATCHI WMH LIMITED | 03457658 | 06/07/1999 | 22/09/2023 | Dissolved |
| RE WORLDWIDE LTD | 10503044 | 29/11/2016 | 30/09/2023 | One Red Flag |
| THE INSTITUTE OF PRACTITIONERS IN ADVERTISING (PRE-CHARTER) | 00221167 | 19/04/2005 | 21/03/2013 | Dissolved |
| THIS IS NOTICED LIMITED | 11843904 | 25/02/2019 | 30/09/2023 | Not Trading |