| Company | Timeline | Status | |
| M O'Brien Civil Engineering Ltd Director • Fitter | 21 Jun 2021←1 Year 5 Months→1 Dec 2022 | Active | |
| M. O'Brien (Plant Hire) Ltd Director • Fitter | 8 Nov 2004←20 Years→Current | Active | |
| Ashvale Haulage Limited Director • Fitter | 24 Jan 2001←24 Years→Current | Active | |
