| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| KINGSTON MIDCO 1 LIMITED | 09964927 | 17/02/2020 | Dissolved |
| KINGSTON MIDCO 2 LIMITED | 09965020 | 17/02/2020 | Dissolved |
| LANTIC BAY LIMITED | 13371846 | 03/05/2021 | One Red Flag |
| NEW SCIENTIST GROUP LIMITED | 09840223 | 17/02/2020 | Dissolved |
| PROFESSIONAL PUBLISHERS ASSOCIATION LTD | 00132310 | 20/05/2021 | Bronze |
| WALTON-ON-THAMES DEVELOPMENTS LIMITED | 07862879 | 28/11/2011 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AUDIT BUREAU OF CIRCULATIONS LIMITED | 00259647 | 07/05/2010 | 12/10/2011 | Silver |
| BUILDING SERVICES PUBLICATIONS LIMITED | 00657176 | 19/11/2008 | 27/03/2013 | Dissolved |
| FIPP LIMITED | 01006977 | 01/12/2020 | 29/11/2022 | One Red Flag |
| HAYNES GROUP LIMITED | 00659701 | 01/08/2016 | 03/04/2020 | Gold |
| INFORMA MARKETS (UK) LIMITED | 00370721 | 24/10/2017 | 14/09/2018 | Bronze |
| NEW SCIENTIST LIMITED | 10644366 | 17/02/2020 | 01/10/2023 | Bronze |
| OLD JOURNALS LIMITED | 02775655 | 09/03/2007 | 25/07/2008 | Dissolved |