| Company | Timeline | Status | |
| J.P. Whelan (Investments) Limited Director • Builder | 31 Dec 1990←10 Years→31 Dec 2000 | Active | |
| J.P. Whelan & Sons (Construction) Limited Director • Builder | 31 Dec 1990←10 Years→31 Dec 2000 | Active | |
| Whelan Farms Limited Director • Builder | 1 Jan 1970←31 Years→31 Dec 2000 | Active | |
| Whelan & Grant (Holdings) Limited Director • Builder | 1 Jan 1970←31 Years→1 Jan 2001 | Active | |
| J.P. Whelan Homes Limited Director • Builder | 1 Jan 1970←31 Years→31 Dec 2000 | Active | |
