| Company | Timeline | Status | |
| Solarity Architecture LLP Designated LLP Member • Unreported  | 2 Apr 2013←7 Years→22 Dec 2020  | Dissolved  | |
| The Conservation Rooflight Company Limited Director • Director  | 4 Sep 2006←12 Years→25 Mar 2019  | Active  | |
| The Rooflight Company Limited Director • Architect  | 26 Aug 2003←15 Years→25 Mar 2019  | Active  | |
| The Metal Window Company Limited Director • Architect  | 6 Jan 1994←21 Years→18 May 2015  | Active  | |
