| Company | Timeline | Status | |
| Alex Knowles Structural Design Ltd Director • Unreported | 6 Jan 2025←10 Months→Current | Active | |
| Alex Knowles Structural Engineers Limited Director • Structural Engineer | 30 Apr 2014←8 Years→31 Jan 2023 | Dissolved | |
| Alex Knowles Associates Ltd Director • Consultant Structural Engineer | 23 Apr 2002←22 Years→23 Jul 2024 | Dissolved | |
