| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B T T G Publications Ltd | 03208606 | 22/12/2000 | Dissolved |
| BRITISH TEXTILE TECHNOLOGY GROUP | 00155873 | 04/11/2005 | Dissolved |
| BRITISH TEXTILE TECHNOLOGY GROUP | 00155873 | 01/05/2009 | Dissolved |
| BTTG TRUSTEES LIMITED | 07458330 | 02/12/2010 | Dissolved |
| SDF REALISATIONS (2013) LIMITED | 02337403 | 22/12/2000 | Dissolved |
| SDF REALISATIONS (2013) LIMITED | 02337403 | 13/11/2009 | Dissolved |
| Shirley Institute Ltd | 01864571 | 17/09/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BTTG HOLDINGS LIMITED | 07424269 | 29/10/2010 | 28/10/2020 | Silver |
| BTTG LIMITED | 04628697 | 04/11/2005 | 12/06/2018 | Silver |
| BTTG LIMITED | 04628697 | 01/10/2009 | 28/10/2020 | Silver |
| BTTG TESTING & CERTIFICATION LTD | 04669650 | 01/12/2010 | 28/10/2020 | Silver |
| INTERNATIONAL ENVIRONMENTAL TESTING GROUP LIMITED | 07754417 | 26/08/2011 | 31/07/2020 | One Red Flag |
| SHIRLEY TECHNOLOGIES LIMITED | 04669651 | 04/11/2005 | 12/06/2018 | Bronze |
| SHIRLEY TECHNOLOGIES LIMITED | 04669651 | 01/10/2009 | 28/10/2020 | Bronze |
| TEXTILE LABORATORY SERVICES LIMITED | 09537454 | 13/04/2015 | 28/10/2020 | Bronze |
| WIRA TECHNOLOGY GROUP LIMITED | 00151519 | 01/09/2004 | 31/07/2020 | Not Trading |