| Company | Timeline | Status | |
| Johnson, Stone & Associates Limited Director • Economist | 16 May 2021←4 Years→Current | Active | |
| M.J. Economics Limited Director • Economist | 10 Oct 2016←9 Years→Current | Active | |
| Johnson Partners Limited Director • Economist | 12 Dec 2003←12 Years→10 Oct 2016 | Active | |
| M.J. Economics Limited Secretary • Unreported | 13 May 1998←27 Years→Current | Active | |
