The Governance RegisterEdition 2026 · Compiled 12th July 2026

Downs Syndrome Diamond Foundation Limited

Company 03026295 Active

Registered charity: Downs Syndrome Diamond Foundation Limited

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Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.

2
directors on the board
11.4y median 11.4y
average tenure
13.7y
longest tenure
2
directors past 6 years
1 vs 0 portfolio
first-time directors
1
also govern a charity
1
left in the last 12 months

Where else this board sits

Education 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • Several long-serving directors could step down together

Where to look Suggested search: succession planning for long-tenured seats.

Related organisations

Companies whose board overlaps with this one through the same people. Deterministic, from public records.

Company details

Number03026295
StatusActive
TypePrivate Limited Company
Incorporated24/02/1995
AddressARK FARM OLD WARDOUR, TISBURY, SALISBURY, SP3 6RD
Accounts next due30/09/2026
Accounts last made up31/12/2024

Industry (SIC)

94990 - Activities of other membership organizations n.e.c.

Ownership - persons with significant control (6)

  • Mr Martin Nicholas Caleb Thomas British
    significant influence or control
  • Mr Sebastian O'Meara British
    significant influence or control
  • Mr Jeremy Abbot Barnes British
    significant influence or control
  • Mr Martin Nicholas Caleb Thomas ceased British
    ownership of shares 25-50% voting rights 25-50%
  • Mr Jeremy Abbot Barnes ceased British
    ownership of shares 25-50% voting rights 25-50%
  • ceased

Officers (9)

  • O'Meara, Sebastian Director · appointed 2017
  • Barnes, Jeremy Abbot Director · appointed 2012
  • Garrett, Veronique Frances Edmonde Former Director · appointed 2023 · resigned 2024
  • Turnbull, James Henry Middleton Former Director · appointed 2017 · resigned 2024
  • Manasov, Marlen Former Director · appointed 2003 · resigned 2011
  • Gambrill, Anthony David Former Director · appointed 1996 · resigned 2000
  • Brindle, Richard David Henry Former Director · appointed 1995 · resigned 2011
  • Thomas, Martin Nicholas Caleb Former Director · appointed 1995 · resigned 2026
  • Barnes, Jeremy Stephen Abott Former Director · appointed 1995 · resigned 2011

Directors and officers on the Companies House record, current and former.

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