| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CASTLEVALE INVESTMENTS LIMITED | 06162542 | 15/03/2007 | Gold |
| CASTLEVALE INVESTMENTS LIMITED | 06162542 | 15/03/2007 | Gold |
| Castlevale (Sk) Ltd | 06723387 | 15/10/2008 | Dissolved |
| GRICE PROPERTY HOLDINGS LIMITED | 12374567 | 20/12/2019 | Dissolved |
| HERONBURN LIMITED | 05109009 | 10/06/2004 | Dissolved |
| HERONBURN LIMITED | 05109009 | 10/06/2004 | Dissolved |
| HERONCLIFF LIMITED | 05049505 | 13/04/2004 | Dissolved |
| HERONELMS LIMITED | 06717620 | 07/10/2008 | Dissolved |
| Threejay Developments Ltd | 02251462 | 17/11/1991 | Dissolved |
| YHC DEVELOPMENTS LIMITED | 04226407 | 31/10/2001 | Dissolved |
| YHC DEVELOPMENTS LIMITED | 04226407 | 31/10/2001 | Dissolved |
| YORK HOUSE CONSTRUCTION LIMITED | 03359049 | 01/05/2001 | Dissolved |
| YORK HOUSE CONSTRUCTION LIMITED | 03359049 | 24/04/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HAMBLETON STEEL (SOUTH) LIMITED | 05856164 | 02/08/2006 | 25/05/2022 | Bronze |
| HAMBLETON STEEL (SOUTH) LIMITED | 05856164 | 02/08/2006 | 25/05/2022 | Bronze |
| HAMBLETON STEEL GROUP LTD | 10635312 | 23/02/2017 | 25/05/2022 | Silver |
| HAMBLETON STEEL LIMITED | 03106954 | 16/10/1995 | 25/05/2022 | Silver |
| HAMBLETON STRUCTURES LIMITED | 03284660 | 27/11/1996 | 25/05/2022 | Silver |
| NORTHALLERTON GATEWAY LIMITED | 06506028 | 18/02/2008 | 26/03/2009 | Not Trading |
| SEVERFIELD COMMERCIAL & INDUSTRIAL LIMITED | 02668795 | 20/02/1992 | 30/06/1994 | Silver |
| SEVERFIELD INTERNATIONAL LIMITED | 02123467 | 20/02/1992 | 30/06/1994 | One Red Flag |
| SOWERBY GATEWAY LIMITED | 06506031 | 18/02/2008 | 26/03/2009 | Not Trading |
| STEELCRAFT ERECTION SERVICES LIMITED | 01634418 | 20/02/1992 | 30/06/1994 | Dissolved |
| SUBLET FABRICATIONS LTD | 12198043 | 10/09/2019 | 25/05/2022 | One Red Flag |
| YORK HOUSE CONSTRUCTION LIMITED | 03359049 | 24/04/1997 | 10/06/1997 | Dissolved |