| Company | Timeline | Status | |
| Foster Group (International) Limited Director • Architect | 5 Dec 2001←2 Years→31 Dec 2003 | Dissolved | |
Foster & Partners (Japan) Limited Director • Architect | 4 May 1993←10 Years→31 Dec 2003 | Dissolved | |
| Foster + Partners Limited Director • Architect | 31 Jan 1993←10 Years→31 Dec 2003 | Active | |
| Foster Holdings Limited Director • Architect | 5 Jul 1992←11 Years→31 Dec 2003 | Dissolved | |
