| Company | Timeline | Status | |
| C J Lee Consulting Engineers Ltd Director • Chartered Engineer | 16 Jan 2025←9 Months→Current | Active | |
| Structic Innovations Ltd Director • Structural Engineer | 19 Dec 2023←1 Year 10 Months→Current | Active | |
| Structic Ltd Director • Structural Engineer | 15 Aug 2018←7 Years→Current | Active | |
| Ingenieur Consulting Limited Director • Structural Engineer | 27 Nov 2015←8 Years→9 Apr 2024 | Dissolved | |
Stable Structures Commercial Limited Director • Director | 18 Jun 2008←5 Years→18 Mar 2014 | Dissolved | |
Stable Structures Commercial Limited Secretary • Unreported | 18 Jun 2008←5 Years→18 Mar 2014 | Dissolved | |
| James Christopher Consulting Ltd Director • Engineer | 12 Jan 2004←14 Years→12 Oct 2018 | Active | |
