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PersoniSource and licenceCharity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.Charity Commission Register of Charities: current trustees and appointment dates.Companies House Officer appointments and resignations.Register edition compiled 25 October 2026.Identity Records are treated as the same person only where our identity-matching rules support it. Confirmed relationships are supported by the approved identity-matching evidence and rules. Likely relationships are supported by sufficient evidence to suggest the records concern the same individual, but are not established as confirmed; they are shown with the label “Likely the same person”. How people are matchedHow we handle data

Simon Toomer

Simon Toomer holds 2 current roles and has 3 previous roles across 5 organisations.

Current roles
2
at 2 organisations
Previous roles
3
most recent ended 2021
Organisations
5
2 now, 3 in the past
People served alongside
83
on the same boards
On boards since
2011
15 years in governance
Longest current role
1 yr
at Chiswick House and Gardens Trust
Charity roles
1
now, plus none in the past
Company roles
1
now, plus 3 in the past

Overview

Simon's network

83 people5 organisationsExplore in 3DiThe red node is Simon. The map draws current roles and the people on those boards. Previous organisations, including dissolved ones, are added as dashed links when Former organisations is on; the figures above also count previous roles.Hover a node to focus its connections; click one to open it.

People Simon has served alongside

83 peopleiBased on overlapping official board records, including company secretaries. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.

The Chiswick House and Gardens Trust 15 people · 2025-present

All 83 people →

Roles

Roles

5 roles across 5 organisations (2 current, 3 previous)

Current roles (2)iTaken from official records: Charity Commission, Companies House. Each row shows the appointment and, where it has ended, the end date as filed.

Previous roles (3)iTaken from official records: Companies House. Each row shows the appointment and, where it has ended, the end date as filed.Charity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.

  • Plantnetwork.Director · 2013-2021appointed 2013-04-11 · ended 2021-04-22 · Company 03777793
    Previous
  • Friends of Westonbirt ArboretumDirector · 2013-2015appointed 2013-01-01 · ended 2015-07-31 · Company 04965522
    Previous
  • Tree AidDirector · 2011-2017appointed 2011-01-31 · ended 2017-07-07 · Company 03779545
    Previous

Network

Simon's network

iThe red node is Simon. Pale nodes are charities, grey nodes are companies, and darker grey nodes are the people who sit on them. Dashed links are historical or inferred. Dashed blue-grey links are company secretaries. Click any node to explore.

People Simon has served alongside

83 people across 5 organisationsiBased on overlapping official board records, including company secretaries. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.

The Chiswick House and Gardens Trust 15 people · 2025-present

Chiswick House and Gardens Trust 11 people · 2025-present

Plantnetwork. 26 people · 2013-2021

Tree Aid 22 people · 2011-2017

Friends of Westonbirt Arboretum 18 people · 2013-2015