| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MORGENWONEN LIMITED | 01301330 | 03/11/2016 | Not Trading |
| P J DAVIDSON (UK) LIMITED | 11526666 | 09/11/2018 | Gold |
| VOLKERBROOKS LIMITED | 00285481 | 15/03/2011 | Gold |
| VOLKERFITZPATRICK LIMITED | 02387700 | 01/01/2007 | Silver |
| VOLKERFITZPATRICK OVERSEAS LIMITED | 01653247 | 18/02/2015 | Bronze |
| VOLKERHIGHWAYS LIMITED | 00638559 | 15/03/2011 | Bronze |
| VOLKERINFRA LIMITED | 00272267 | 19/06/2012 | Amber |
| VOLKERLASER BUILD LIMITED | 03991129 | 03/11/2016 | Not Trading |
| VOLKERLASER CIVIL ENGINEERING LIMITED | 04000850 | 03/11/2016 | Not Trading |
| VOLKERLASER HOLDINGS (UK) LIMITED | 01456940 | 03/11/2016 | Bronze |
| VOLKERLASER LTD | 03892871 | 15/03/2011 | Amber |
| VOLKERRAIL GROUP LIMITED | 04930080 | 15/03/2011 | Silver |
| VOLKERRAIL LIMITED | 03184313 | 15/03/2011 | Silver |
| VOLKERRAIL SPECIALIST BUSINESSES LIMITED | 04197945 | 15/03/2011 | Silver |
| VOLKERSERVICES LIMITED | 03998767 | 01/11/2013 | Amber |
| VOLKERSTEVIN HOLDING LIMITED | 13092153 | 04/01/2021 | Silver |
| VOLKERSTEVIN INFRASTRUCTURE LIMITED | 07877543 | 14/02/2012 | Silver |
| VOLKERSTEVIN LIMITED | 00288392 | 21/07/2010 | Gold |
| VOLKERSTEVIN SERVICES LTD | 08940855 | 01/05/2016 | Gold |
| VOLKERSTEVIN SPECIALIST BUSINESSES LIMITED | 00981398 | 15/03/2011 | Gold |
| VOLKERWESSELS LIMITED | 02001762 | 04/05/2010 | Silver |
| VOLKERWESSELS UK LIMITED | 01179305 | 26/03/2015 | Silver |
| WOOLLENSBROOK DEVELOPMENTS LIMITED | 07256134 | 27/03/2017 | Bronze |
| WOOLLENSBROOK GROUP LIMITED | 11677299 | 14/11/2018 | Bronze |
| WOOLLENSBROOK HOMES LIMITED | 10728992 | 19/04/2017 | One Red Flag |
| WOOLLENSBROOK INVESTMENTS LIMITED | 11677437 | 14/11/2018 | Gold |
| WOOLLENSBROOK SWAFFHAM BULBECK LIMITED | 11677430 | 14/11/2018 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|