| Company | Timeline | Status | |
| Obelisk Power Systems UK Limited Director • Accountant  | 26 Apr 2022←3 Years→Current  | Active  | |
| Obelisk Networks (UK) Limited Director • Accountant  | 26 Apr 2022←3 Years→Current  | Active  | |
| M J Quinn Solar Limited Director • Unreported  | 1 Feb 2022←3 Years→Current  | Active  | |
| Quinn Constructel Limited Director • Finance Director  | 14 Sep 2020←5 Years→Current  | Active  | |
| Q.O.S Manchester Limited Director • Finance Director  | 2 Oct 2018←2 Years 5 Months→16 Mar 2021  | Dissolved  | |
| Quinn Loan Company Limited Director • Finance Director  | 2 Oct 2018←2 Years 5 Months→15 Mar 2021  | Dissolved  | |
| M J Quinn Integrated Services Limited Director • Unreported  | 11 Nov 2008←16 Years→Current  | Active  | |
| M J Quinn Constructel Limited Director • Unreported  | 11 Nov 2008←16 Years→Current  | Active  | |
| Quinn Infrastructure Services Limited Director • Finance Director  | 1 Aug 1999←19 Years→18 Jun 2019  | Liquidation  | |
| Nelson Group Services (Maintenance) Limited Director • Finance Director  | 1 Mar 1994←1 Year 2 Months→27 May 1995  | Dissolved  | |
