| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| NEWBY GRAVEL LIMITED | 08014400 | 30/03/2012 | Silver |
| NEWBY HALL ESTATE COMPANY LIMITED | 07312492 | 13/07/2010 | Silver |
| NEWBY HALL HYDRO LIMITED | 07661556 | 08/06/2011 | One Red Flag |
| TORLOISK HYDRO LIMITED | 07661630 | 08/06/2011 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AYSGARTH SCHOOL TRUST LIMITED | 00898078 | 06/11/1995 | 31/08/2006 | Silver |
| CHRISTIE'S E-COMMERCE LIMITED | 04092471 | 28/02/2001 | 01/03/2007 | Dissolved |
| HARROW INTERNATIONAL SCHOOLS LIMITED | 07103979 | 11/02/2010 | 31/08/2015 | Bronze |
| HARROW SCHOOL ENTERPRISES LIMITED | 01617359 | 01/11/2001 | 01/09/2008 | Bronze |
| HISTORIC HOUSES ASSOCIATION | 02001057 | 12/12/2007 | 15/11/2016 | Silver |
| PROSP PUBLISHING LIMITED | 03013949 | 20/10/1997 | 03/09/2007 | Dissolved |