| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EC ESTATES LIMITED | 05806742 | 05/05/2006 | Bronze |
| Howdenshire Growers Ltd | 01172987 | 11/06/1992 | Dissolved |
| Howdenshire Growers Ltd | 01172987 | 15/12/1992 | Dissolved |
| Kilpin Finance Ltd | 00940890 | 31/12/1990 | Dissolved |
| LONGTHORP (KILPIN) LIMITED | 00547353 | 10/01/1995 | Silver |
| LONGTHORP (KILPIN) LIMITED | 00547353 | 26/01/1992 | Silver |
| QUINTOR (HOMES) LIMITED | 02761467 | 13/11/1992 | Bronze |
| QUINTOR (HOMES) LIMITED | 02761467 | 13/11/1992 | Bronze |
| THE INSTITUTE FOR AGRICULTURE AND HORTICULTURE | 03824061 | 08/09/1999 | Bronze |
| Ton Transport Limited | 01215203 | 26/01/1992 | Dissolved |
| Turner Brothers Radio & Television Limited | 00285679 | 31/12/1990 | Dissolved |
| Winrod Ltd | 01456368 | 31/12/1990 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BPEX LIMITED | 06539520 | 01/04/2008 | 15/08/2012 | Dissolved |
| LANTRA | 02823181 | 01/12/2009 | 14/12/2017 | Gold |
| NATIONAL LAND BASED COLLEGE | 09635465 | 11/06/2015 | 23/04/2024 | Silver |
| NATIONAL PIG ASSOCIATION | 03859242 | 06/12/2000 | 05/11/2003 | Gold |
| SAM LONGTHORP LIMITED | 00823378 | 31/12/1990 | 23/02/1996 | Bronze |
| Sandholme Potatoes Ltd | 01507243 | 11/12/1990 | 19/01/1999 | Dissolved |
| THE INSTITUTE FOR AGRICULTURE AND HORTICULTURE | 03824061 | 12/08/1999 | 27/04/2022 | Bronze |