| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C G FLOORING SYSTEMS LIMITED | 03989136 | 09/05/2000 | One Red Flag |
| COGRI ENGINEERING LIMITED | 06024819 | 11/12/2006 | One Red Flag |
| COGRI GROUP LIMITED | 02425018 | 21/09/1991 | Bronze |
| CONCRETE GRINDING LIMITED | 03191853 | 30/04/1996 | Gold |
| DC21 (GROUP) LIMITED | 08253081 | 15/10/2012 | Gold |
| DC21 (OPERATIONS) LIMITED | 08253579 | 15/10/2012 | Gold |
| DC21 JUPITER SPV LIMITED | 09406804 | 26/01/2015 | Not Trading |
| DC21 LIMITED | 06855349 | 23/03/2009 | Bronze |
| DC21 MARS SPV LIMITED | 09505214 | 24/03/2015 | Gold |
| DC21 SATURN SPV LIMITED | 09406790 | 26/01/2015 | Not Trading |
| DC21 TOW TOP FARM LIMITED | 09075528 | 06/06/2014 | Not Trading |
| DC21 VENUS SPV LIMITED | 08504176 | 25/04/2013 | Bronze |
| DS WIND ENERGY LIMITED | 08574844 | 18/06/2013 | Silver |
| FACE CONSULTANTS LIMITED | 02928994 | 13/05/1994 | Silver |
| FACE FLOOR TESTING LIMITED | 06942143 | 12/05/2010 | Not Trading |
| FASTRAZ LIMITED | 05337522 | 23/09/2005 | Not Trading |
| Flat Slab Ltd | 02275537 | 05/04/1991 | Dissolved |
| LASER GRINDING (ITALIA) LIMITED | 02928678 | 13/05/1994 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| C G FLOORING SYSTEMS LIMITED | 03989136 | 09/05/2000 | 25/05/2000 | One Red Flag |
| DC21 EARTH SPV LIMITED | 08504151 | 25/04/2013 | 02/07/2019 | Insolvent |
| DC21 MERCURY SPV LIMITED | 08310975 | 28/11/2012 | 21/08/2014 | Bronze |
| EDS (IP) LLP | OC346562 | 22/06/2009 | 06/06/2011 | Dissolved |
| ENVIRONMENTAL DEFENCE SYSTEMS LIMITED | 06300190 | 12/10/2007 | 01/06/2011 | Gold |
| FLOODSAX LIMITED | 06629187 | 24/06/2008 | 06/06/2011 | Amber |
| Fastrack Flooring Systems Ltd | 03661506 | 04/11/1998 | 05/11/1999 | Dissolved |
| Fastrack Flooring Systems Ltd | 03661506 | 04/11/1998 | 17/04/2000 | Dissolved |
| LASER GRINDING (ITALIA) LIMITED | 02928678 | 13/05/1994 | 04/07/1997 | Bronze |