| Company | Timeline | Status | |
| Horn Machinery Ltd Director • Agricultural Engineer | 3 Dec 1999←23 Years→13 Dec 2022 | Dissolved | |
| Horn Machinery Ltd Secretary • Agricultural Engineer | 3 Dec 1999←4 Years→29 Jun 2004 | Dissolved | |
| T.H. Horn Ltd Director • Agricultural Engineer | 10 Apr 1997←28 Years→Current | Active | |
| T.H. Horn Ltd Secretary • Agricultural Engineer | 10 Apr 1997←7 Years→29 Jun 2004 | Active | |
