| Company | Timeline | Status | |
| The Constable Educational Trust Limited Director • Retired | 1 Sep 2003←1 Year 2 Months→23 Nov 2004 | Dissolved | |
| St. Paul's Newpin Limited Director • Headmistress | 15 Jan 1998←9 Years→6 Oct 2007 | Active | |
| United Church Schools Trust Director • Headmistress | 18 Oct 1995←6 Years→12 Dec 2001 | Active | |
| The Girls' Schools Association Director • Headmistress | 10 May 1994←2 Years 7 Months→31 Dec 1996 | Active | |
| St. Christopher's School (Hampstead) Limited Director • Headmistress Retired | 30 Apr 1991←12 Years→8 Mar 2004 | Active | |
