| Company | Timeline | Status | |
| C & C McMahon Ltd Director • Company Director | 30 Jan 2024←1 Year 9 Months→Current | Active | |
| B & C McMahon Ltd Director • Company Director | 26 Jun 2023←2 Years 4 Months→Current | Active | |
| Cathal McMahon Plumbing & Heating Ltd Director • Plumber | 23 Mar 2021←4 Years→Current | Active | |
