| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CSCS (AW) LIMITED | 06398389 | 26/01/2022 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ART COMPANY (CREATIVE SERVICES) LIMITED(THE) | 01931739 | 28/11/2014 | 20/11/2015 | Dissolved |
| BEAUMONT-BENNETT LIMITED | 02186817 | 28/11/2014 | 20/11/2015 | Dissolved |
| CREATIVE STRATEGY LIMITED | 02282899 | 28/11/2014 | 20/11/2015 | Dissolved |
| EUROCLEARING LIMITED | 02548770 | 28/11/2014 | 20/11/2015 | Dissolved |
| FCB EUROPE LIMITED | 03007253 | 26/08/2009 | 31/07/2012 | Gold |
| FCB INFERNO LIMITED | 02586852 | 27/10/2008 | 31/07/2012 | Amber |
| GREY COMMUNICATIONS GROUP LIMITED | 01795794 | 20/12/2012 | 01/04/2021 | Gold |
| GREY DIRECT LIMITED | 01908998 | 28/11/2014 | 30/11/2015 | Dissolved |
| GREY ENTERTAINMENT AND MEDIA LIMITED | 02520420 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY EUROPE LIMITED | 02093893 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY GB LIMITED | 02475406 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY GLOBAL GROUP (UK) LIMITED | 03664479 | 20/12/2012 | 01/04/2021 | Silver |
| GREY GROUP SERVICES LIMITED | 01819631 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY INTERACTIVE EUROPE LIMITED | 03837121 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY LIMITED | 04125873 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY LONDON LIMITED | 02499268 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY MIDLANDS LIMITED | 02499827 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY NETWORK LIMITED | 02126910 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY NORTH LIMITED | 01819542 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY NT LIMITED | 02098789 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY PTK ADVERTISING LIMITED | 01259894 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY TECHNOLOGY SERVICES LIMITED | 00856829 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREY WORLDWIDE LIMITED | 00932147 | 28/11/2014 | 20/11/2015 | Dissolved |
| GREYCOM LIMITED | 01864844 | 28/11/2014 | 20/11/2015 | Dissolved |
| HILTON ADVERTISING LIMITED | 00756971 | 28/11/2014 | 20/11/2015 | Dissolved |
| MELLORS REAY & PARTNERS LIMITED | 02548639 | 28/11/2014 | 20/11/2015 | Dissolved |
| MIND OVER MEDIA LIMITED | 02300912 | 28/11/2014 | 20/11/2015 | Dissolved |
| MODULE COMMUNICATIONS GROUP LIMITED | 02252717 | 28/11/2014 | 20/11/2015 | Dissolved |
| MOONRAID LIMITED | 00702897 | 28/11/2014 | 20/11/2015 | Dissolved |
| RWG LIMITED | 00722208 | 28/11/2014 | 20/11/2015 | Dissolved |
| TELEBINGO LIMITED | 02104534 | 28/11/2014 | 20/11/2015 | Dissolved |
| THE BRAND FUTURES CONSULTANCY LIMITED | 02111818 | 28/11/2014 | 20/11/2015 | Dissolved |
| TPR PROPERTY MANAGEMENT COMPANY LIMITED | 04922172 | 06/10/2003 | 14/02/2008 | One Red Flag |
| TWW GROUP LIMITED | 02481989 | 30/01/2019 | 01/04/2021 | Amber |
| WILDFIRE WORD OF MOUTH LIMITED | 04571593 | 02/01/2019 | 01/04/2021 | Dissolved |