| Company | Timeline | Status | |
| Ashroyd Limited Secretary • Chartered Accountant | 12 Jun 2006←19 Years→Current | Active | |
| Thomas A. Ashton Developments Limited Secretary • Chartered Accountant | 12 Jun 2006←16 Years→27 Aug 2022 | Dissolved | |
| Ashtons Manufacturing Limited Secretary • Chartered Accountant | 22 Apr 2003←22 Years→Current | Active | |
| Ashton Aerospace & Defence Limited Secretary • Chartered Accountant | 22 Apr 2003←22 Years→Current | Active | |
| Ashtons (Sheffield) Limited Secretary • Chartered Accountant | 22 Apr 2003←22 Years→Current | Active | |
| Ashton Seals Usa Limited Secretary • Chartered Accountant | 22 Apr 2003←22 Years→Current | Active | |
| Thomas A. Ashton Limited Secretary • Chartered Accountant | 22 Apr 2003←22 Years→Current | Active | |
| Ashton Seals Limited Secretary • Chartered Accountant | 28 Feb 2003←22 Years→Current | Active | |
| Clough (Croydon) Limited Secretary • Chartered Accountant | 28 Feb 2003←22 Years→Current | Active | |
