The Hon Joanna Sarah Birkettage 66
Trustee of 2 charities - director of 2 companies - 4 former directorships
Board network
Green nodes are the charities this person governs; amber nodes are trustees they sit alongside. Click any node to explore.
Governance intelligence
23.7 years in governance · 2 charity boards · 5 company directorships (4 former) · 3 sectors · 5.5y average tenure
Calculated from Charity Commission and Companies House records - deterministic, no AI.
Charity boards (2)
- THE Frederick Ashton Foundation since 2026 · 0yIncome across tenure yearsCharity Commission annual returns
- THE Colin AND Janet Marshall Trust since 2015 · 11yIncome across tenure yearsIncome +2412% across tenure yearsIncome trend: risingCharity Commission annual returns
Company appointments
- Director THE Frederick Ashton Foundation appointed 2026 On the register
- Director Royal Ballet School appointed 2018 On the register
- Director Benenden School (Kent) Limited appointed 2011 · resigned 2024 On the register
- Director Benenden School Trust (THE) appointed 2002 · resigned 2011 On the register
Company directorships matched to this trustee from Companies House. Company status is a matter of public record, shown as at the latest register snapshot.
Governance journey
-
2002
Director - resigned 2011
-
2011
Director - resigned 2024
- 2015
-
2016
Director - resigned 2023
-
2018
Director - resigned 2024
-
2018
Director
- 2026
-
2026
Director
Governance network
Most-frequent collaborators
- Eliot-Cohen, Sarah Lucinda THE Frederick Ashton Foundation, 2026-current
- Acosta, Carlos THE Frederick Ashton Foundation, 2026-current
- Jolley OBE, Jay THE Frederick Ashton Foundation, 2026-current
- Nourse, Christopher THE Frederick Ashton Foundation, 2026-current
- Laurence, Jeanetta Christine THE Frederick Ashton Foundation, 2026-current
- Thom, Richard Denholm THE Frederick Ashton Foundation, 2026-current
- Wallis, Diana Lynn THE Frederick Ashton Foundation, 2026-current
- O'Hare, Kevin Patrick THE Frederick Ashton Foundation, 2026-current
- +12 more
Similar leaders
People with a similar governance profile
- Martin John Morris same sectors
- Colin John Watson Reid same sectors
- Dame Theresa Sackler same sectors
- David Gorton shared: Arts
- Dawn Emma Long shared: Arts
- James Lingwood shared: Arts
Grouped by governance profile from public records - deterministic, no AI.
Same person, other records
- Joanna Birkett Confirmed 1 board
Confirmed = matched on date of birth. Likely - inferred = matched on name only (distinctive name or nickname variant). The register issues a new trustee record per charity, so one person appears under name variants; path search treats these as one person.
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