| Company | Timeline | Status | |
| Mace-Layton Racing Limited Director • Lecturer | 14 Jan 2014←11 Years→Current | Active | |
| Mace Property Company Limited Director • Unreported | 25 Sep 1998←27 Years→Current | Active | |
| Mace Racing Services Limited Director • Lecturer | 25 Sep 1998←27 Years→Current | Active | |
| Mace-Geden (Turf Accountants) Limited Director • Lecturer | 25 Sep 1998←27 Years→Current | Active | |
| Graham Mace Limited Director • Unreported | 25 Sep 1998←27 Years→Current | Active | |
