| Company | Timeline | Status | |
| Stephen Marshall Holdings Ltd Director • Director | 8 Apr 2024←1 Year 6 Months→Current | Active | |
| Stephen Marshall (Urbanism) Limited Director • Director | 4 Feb 2010←15 Years→Current | Active | |
| Stephen Marshall Architects LLP Designated LLP Member • Unreported | 28 Dec 2006←18 Years→Current | Active | |
