| Company | Timeline | Status | |
| Curtins Trustees Limited Director • Structural Engineer | 13 Apr 2021←3 Years→31 Dec 2024 | Active | |
| Roalha Properties Ltd Director • None | 29 Jul 2016←9 Years→Current | Active | |
| Bridge Street Wharf LLP Designated LLP Member • Unreported | 30 Jun 2016←9 Years→Current | Active | |
| Hadwens Apartments Limited Director • Structural Engineer | 26 Oct 2010←14 Years→31 Dec 2024 | Active | |
| Curtins Limited Director • Consulting Engineer | 1 Dec 2003←21 Years→31 Dec 2024 | Active | |
Curtins Management Limited Director • Consulting Engineer | 1 Dec 2003←1 Year 6 Months→16 Jun 2005 | Dissolved | |
| Curtins Group Limited Director • Consulting Engineer | 1 Jan 1999←26 Years→31 Dec 2024 | Active | |
| Curtins Consulting Limited Director • Consulting Engineer | 1 Jan 1999←26 Years→31 Dec 2024 | Active | |
