| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADVERTISING STANDARDS BOARD OF FINANCE LIMITED(THE) | 01195756 | 25/11/2003 | Gold |
| BUSINESS DATA GROUP LIMITED | 06425086 | 01/10/2019 | Silver |
| CHARLES PING ASSOCIATES LLP | OC422608 | 25/05/2018 | Dissolved |
| CHARLES PING LIMITED | 13536209 | 28/07/2021 | Gold |
| GOLDCLIPPER COMPUTING LIMITED | 03192453 | 26/02/2020 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DATA AND MARKETING ASSOCIATION LIMITED | 02667995 | 14/01/1999 | 13/11/2008 | One Red Flag |
| ENGINE PARTNERS UK LLP | OC365812 | 17/09/2012 | 31/07/2018 | Silver |
| FUEL DATA STRATEGIES LIMITED | 04617236 | 17/09/2012 | 20/03/2018 | Dissolved |
| THE VINTAGE SPORTS-CAR CLUB LIMITED | 00446083 | 02/09/2021 | 30/11/2023 | Gold |