| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 3C ADVENTURE CAPITALISTS LIMITED | SC208753 | 01/05/2002 | Dissolved |
| BLUE MIRROR INSIGHTS LTD | 09527507 | 01/07/2018 | Dissolved |
| MANUFACTURING SYSTEMS DEVELOPMENT LIMITED | 02200724 | 25/06/1991 | Dissolved |
| Polymer Awarding Body Ltd | 02559321 | 08/05/2001 | Dissolved |
| THE POLYMER INDUSTRY EDUCATION AND TRAINING TRUST LIMITED | 02576374 | 28/03/1991 | Dissolved |
| Temporary Workforce Performance Excellence Ltd | 06712520 | 01/10/2008 | Dissolved |
| UCL CARBON AUDITORS LIMITED | 06529021 | 11/07/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALCOHOL RESEARCH UK | 07462605 | 19/03/2014 | 19/12/2016 | Bronze |
| CARBON AUDITORS LIMITED | 06519457 | 11/07/2008 | 03/01/2012 | Dissolved |
| COGENT SSC LIMITED | SC129351 | 01/01/2004 | 19/03/2009 | Silver |
| NAVIGATE NDC LIMITED | 05537906 | 26/09/2005 | 05/08/2011 | Bronze |
| NAVIGATE NDC LIMITED | 05537906 | 23/02/2006 | 05/08/2011 | Bronze |
| REZATEC LIMITED | 07940023 | 26/06/2012 | 29/06/2020 | Dissolved |
| TWYFORD CHURCH OF ENGLAND ACADEMIES TRUST | 07648968 | 13/07/2016 | 01/09/2024 | Silver |
| TWYFORD EDUCATION LTD | 15029859 | 26/07/2023 | 13/07/2024 | Bronze |