| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CREAMGLADE LIMITED | 04050500 | 08/11/2000 | Dissolved |
| MUSTARDGRANGE LIMITED | 04050425 | 08/11/2000 | Dissolved |
| PRINCETON SILVER LIMITED | 05924994 | 04/10/2006 | Dissolved |
| ROCKWOOD ABSORBENTS (BAULKING) LIMITED | 01339874 | 20/11/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BYK ADDITIVES LIMITED | 04050418 | 08/11/2000 | 25/09/2013 | Silver |
| CALEDONIAN APPLIED TECHNOLOGY LIMITED | 01612787 | 20/11/2000 | 12/01/2015 | Dissolved |
| CHILLIHURST LIMITED | 04050388 | 08/11/2000 | 12/01/2015 | Dissolved |
| CMC MATERIALS UPC LIMITED | 01050948 | 20/11/2000 | 31/12/2007 | One Red Flag |
| COMPUGRAPHICS INTERNATIONAL LIMITED | 00895170 | 20/11/2000 | 31/12/2007 | Gold |
| CREAMBAY LIMITED | 04050413 | 08/11/2000 | 01/10/2014 | Silver |
| EXCALIBUR REALTY UK LIMITED | 06311960 | 23/08/2007 | 30/09/2014 | Bronze |
| IMPRA WOOD PROTECTION LIMITED | 04050539 | 08/11/2000 | 01/08/2013 | Gold |
| INORGANIC PIGMENTS LIMITED | 00688762 | 20/11/2000 | 30/09/2014 | Gold |
| MEXICHEM SPECIALTY COMPOUNDS LIMITED | 01572669 | 20/11/2000 | 07/01/2011 | Gold |
| OXERRA PIGMENTS UK LIMITED | 02395270 | 20/11/2000 | 30/09/2014 | Amber |
| ROCKWOOD LITHIUM (UK) LTD | 01851869 | 26/10/2012 | 12/01/2015 | Dissolved |
| ROCKWOOD SPECIALTIES LIMITED | 04050394 | 08/11/2000 | 12/01/2015 | One Red Flag |
| RT LITHIUM LIMITED | 08785002 | 20/05/2014 | 12/01/2015 | Bronze |