| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 45-51 WHITFIELD LIMITED | 06126673 | 09/01/2018 | Not Trading |
| BTRME LIMITED | 09819689 | 17/07/2018 | Bronze |
| CAKE GROUP LIMITED | 03391338 | 18/12/2017 | Not Trading |
| CALLING FOR CREATIVITY LIMITED | 14486282 | 11/07/2023 | Bronze |
| CENTENARY HOLDINGS LIMITED | 01782527 | 14/02/2022 | One Red Flag |
| CICERO CONSULTING LIMITED | 04071207 | 28/02/2020 | Gold |
| CICERO ONLINE LIMITED | 08554364 | 28/02/2020 | Gold |
| COMMON INTEREST GROUP LIMITED | 14022495 | 09/06/2023 | One Red Flag |
| CONRAN DESIGN GROUP LIMITED | 01002786 | 09/01/2018 | Bronze |
| COOLER KING LIMITED | 05540154 | 09/01/2018 | Not Trading |
| EKINO LIMITED | 03891688 | 19/09/2018 | One Red Flag |
| EWDB LIMITED | 02160544 | 09/01/2018 | Silver |
| GRAND UNION COMMUNICATIONS LIMITED | 05530755 | 19/09/2018 | Amber |
| H ADVISORS LIMITED | 10791283 | 29/01/2018 | One Red Flag |
| HAVAS CX LIMITED | 05545597 | 19/09/2018 | Gold |
| HAVAS E GROUP LIMITED | 09675978 | 09/01/2018 | Bronze |
| HAVAS EHS DISCOVERY LIMITED | 00908743 | 09/01/2018 | Bronze |
| HAVAS ENTERTAINMENT LIMITED | 05536321 | 09/01/2018 | Amber |
| HAVAS FINANCIAL COMMUNICATIONS LIMITED | 02023319 | 09/01/2018 | One Red Flag |
| HAVAS HELIA LIMITED | 02548077 | 09/01/2018 | Bronze |
| HAVAS HOLDINGS LIMITED | 05655130 | 09/01/2018 | Silver |
| HAVAS PR UK LIMITED | 01881448 | 09/01/2018 | Gold |
| HAVAS SBH LIMITED | 09268821 | 09/01/2018 | Not Trading |
| HAVAS SHARED SERVICES LIMITED | 00071253 | 09/01/2018 | Bronze |
| HAVAS UK LIMITED | 02821174 | 09/01/2018 | Gold |
| HAVAS WORLDWIDE LONDON LIMITED | 03675746 | 01/01/2018 | Amber |
| INVIQA UK LIMITED | 06278367 | 18/02/2022 | Bronze |
| ONE GREEN BEAN LONDON LIMITED | 09411420 | 09/01/2018 | Bronze |
| RSMB LIMITED | 02173860 | 23/06/2020 | Bronze |
| SUPERHERO SCREEN LIMITED | 06568121 | 09/01/2018 | Not Trading |
| TARGET LIVE LIMITED | 06080182 | 09/01/2018 | Not Trading |
| THE INVIQA GROUP LIMITED | 06362690 | 18/02/2022 | One Red Flag |
| THE MAITLAND CONSULTANCY LIMITED | 02964807 | 09/01/2018 | Silver |
| UNCOMMON CREATIVE STUDIO HOLDING LIMITED | 10870649 | 11/07/2023 | Silver |
| UNCOMMON CREATIVE STUDIO LIMITED | 13198619 | 11/07/2023 | Bronze |
| UNCOMMON EXPERIENCE STUDIO LIMITED | 13199299 | 11/07/2023 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARENA MEDIA HOLDINGS LIMITED | 02954661 | 18/12/2017 | 06/11/2020 | One Red Flag |
| ARENA MEDIA LIMITED | 02535107 | 09/01/2018 | 06/11/2020 | Gold |
| ART COMPANY (CREATIVE SERVICES) LIMITED(THE) | 01931739 | 08/11/2012 | 28/11/2014 | Dissolved |
| BEAUMONT-BENNETT LIMITED | 02186817 | 08/11/2012 | 28/11/2014 | Dissolved |
| CARBON (AI) LIMITED | 05912699 | 14/10/2019 | 31/03/2020 | Dissolved |
| CLICKSCO DIGITAL (UK) LIMITED | 10076689 | 14/10/2019 | 15/03/2024 | Bronze |
| CREATIVE STRATEGY LIMITED | 02282899 | 08/11/2012 | 28/11/2014 | Dissolved |
| ELISA INTERACTIVE LTD | 07069743 | 23/11/2017 | 06/11/2020 | Not Trading |
| EUROCLEARING LIMITED | 02548770 | 08/11/2012 | 28/11/2014 | Dissolved |
| FORWARD 1 UK LTD | 09315304 | 18/12/2017 | 06/11/2020 | Gold |
| GATE ONE LIMITED | 08585157 | 06/12/2019 | 14/09/2023 | Bronze |
| GREEN SQUARE INVESTMENTS LLP | OC340207 | 18/09/2008 | 10/09/2010 | Dissolved |
| GREEN SQUARE PARTNERS LLP | OC340024 | 10/09/2008 | 10/09/2010 | Dissolved |
| GREY ADVERTISING LIMITED | 00539916 | 14/05/2012 | 28/11/2014 | Gold |
| GREY DIRECT LIMITED | 01908998 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY ENTERTAINMENT AND MEDIA LIMITED | 02520420 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY EUROPE LIMITED | 02093893 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY GB LIMITED | 02475406 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY GROUP SERVICES LIMITED | 01819631 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY INTERACTIVE EUROPE LIMITED | 03837121 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY LIMITED | 04125873 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY LONDON LIMITED | 02499268 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY MIDLANDS LIMITED | 02499827 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY NETWORK LIMITED | 02126910 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY NORTH LIMITED | 01819542 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY NT LIMITED | 02098789 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY PTK ADVERTISING LIMITED | 01259894 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY TECHNOLOGY SERVICES LIMITED | 00856829 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREY WORLDWIDE LIMITED | 00932147 | 08/11/2012 | 28/11/2014 | Dissolved |
| GREYCOM LIMITED | 01864844 | 08/11/2012 | 28/11/2014 | Dissolved |
| HAVAS MEDIA LIMITED | 02103123 | 18/12/2017 | 06/11/2020 | One Red Flag |
| HAVAS PLAY LIMITED | 02413782 | 18/12/2017 | 14/09/2023 | One Red Flag |
| HAVAS SPORTS LIMITED | 04395472 | 18/12/2017 | 10/06/2024 | Amber |
| HILTON ADVERTISING LIMITED | 00756971 | 08/11/2012 | 28/11/2014 | Dissolved |
| MAITLAND POLITICAL LIMITED | 05566516 | 09/01/2018 | 23/08/2023 | Dissolved |
| MELLORS REAY & PARTNERS LIMITED | 02548639 | 08/11/2012 | 28/11/2014 | Dissolved |
| MIND OVER MEDIA LIMITED | 02300912 | 08/11/2012 | 28/11/2014 | Dissolved |
| MODULE COMMUNICATIONS GROUP LIMITED | 02252717 | 08/11/2012 | 28/11/2014 | Dissolved |
| MOONRAID LIMITED | 00702897 | 08/11/2012 | 28/11/2014 | Dissolved |
| PROSE ON PIXELS HOLDINGS LIMITED | 13214951 | 22/02/2021 | 17/11/2023 | One Red Flag |
| RWG LIMITED | 00722208 | 08/11/2012 | 28/11/2014 | Dissolved |
| TELEBINGO LIMITED | 02104534 | 08/11/2012 | 28/11/2014 | Dissolved |
| THE BRAND FUTURES CONSULTANCY LIMITED | 02111818 | 08/11/2012 | 28/11/2014 | Dissolved |
| TWW GROUP LIMITED | 02481989 | 08/11/2012 | 28/11/2014 | Amber |
| WESTBOURNE COMMS COMPANY LIMITED | 06936185 | 28/02/2020 | 24/08/2023 | Dissolved |
| YATTERBOX LIMITED | 08655290 | 28/02/2020 | 24/08/2023 | Dissolved |