| Company | Timeline | Status | |
| J Coffey Investments Limited Director • Director | 16 Dec 2019←6 Years→Current | Active | |
| J Coffey Limited Director • Secretary | 16 Dec 2019←6 Years→Current | Active | |
| J.E.T. Properties Limited Director • Director | 15 Jan 2008←18 Years→Current | Active | |
| Mayne Build Limited Secretary • Unreported | 31 Jul 2006←19 Years→Current | Active | |
| Coffey Contractors Limited Director • Unreported | 22 Dec 2004←21 Years→Current | Active | |
| J Coffey Plant Limited Director • Director | 22 Dec 2004←19 Years→25 Oct 2024 | Active | |
| J. Coffey Construction Limited Director • Secretary | 20 Apr 1999←21 Years→30 Oct 2020 | Active | |
