| Company | Timeline | Status | |
| Martin Good Mot Centre Ltd Director • Mechanic | 29 Aug 2025←5 Months→Current | Active | |
| M Good Holdings Ltd Director • Mechanic | 10 Apr 2025←10 Months→Current | Active | |
| Hampshire DPF Cleaning Services Ltd Director • Mechanic | 9 Jul 2021←7 Months→8 Feb 2022 | Dissolved | |
| Martin Good Auto Repairs Ltd Director • Mechanic | 9 Jul 2021←4 Years→Current | Active | |
Trade Cars Southern Ltd Director • Mechanic | 2 Aug 2018←1 Year 5 Months→7 Jan 2020 | Dissolved | |
