| Company | Timeline | Status | |
| Knox Ventures Limited Director • Director | 12 Aug 2025←4 Months→Current | Active | |
| MCG2023 Limited Director • Managing Director | 13 Jan 2023←2 Years 7 Months→12 Aug 2025 | Dissolved | |
| RMPL1 Ltd Director • Managing Director | 22 Mar 2022←9 Months→27 Dec 2022 | Dissolved | |
| Eco Cable Protect UK Ltd Director • Managing Director | 7 May 2021←3 Years→4 Apr 2025 | Active | |
| McGowan Civil Engineering Ltd Director • Managing Director | 2 Apr 2020←5 Years→2 Sep 2025 | Dissolved | |
| MGPL1 Ltd Director • Managing Director | 21 Feb 2020←2 Years 10 Months→27 Dec 2022 | Dissolved | |
| McGowan Infrastructure Ltd Director • Chairman | 21 Feb 2020←5 Years→4 Apr 2025 | Active | |
| McGowan Environmental Engineering Ltd Director • Managing Director | 17 Feb 2020←5 Years→Current | Active | |
| McGowan Plant Ltd Director • Company Director | 12 Dec 2018←7 Years→Current | Active | |
| Macdui Developments Ltd Director • Company Director | 25 Aug 2017←3 Years→10 Aug 2021 | Dissolved | |
