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The red node is James. 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. Click any node to explore.

Person

James Mark Ptarmigan Douglas Stroyan

James Mark Ptarmigan Douglas Stroyan is a director of 6 companies and holds 1 other current role. Source: Companies House records.

Director at Higham Estate Trust Company NO.1 Limited · Director at Higham Estate Trust Company NO.2 Limited

  • 7 current roles
  • 4 previous roles
  • Served alongside 112 people
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Official record Companies House · updated 11th October 2026

Roles

11 roles across 11 organisations (7 current, 4 previous)

Current roles (7)

Previous roles (4)

Company roles, current and past, as filed at Companies House.

People James has served alongside

112 people across 11 organisations

Based on overlapping official board records. 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.

Dementia UK 20 people · 2019-present

77/78 Warwick Square Management Company Limited 17 people · 2012-present

77-78 Warwick Square Freehold Company Limited 17 people · 2009-present

Manchester Square Partners LLP 11 people · 2017-present

Spencer Stuart & Associates Limited 9 people · 1992-present

Youngdementia UK 7 people · 2020-present

Clervaux Trust Holdings 7 people · 2016-present

Higham Estate Trust Company NO.1 Limited 2 people · 2024-present

Higham Estate Trust Company NO.2 Limited 2 people · 2024-present

Duncroisk Estates Limited 1 person · 2022-present

Aysgarth School Trust Limited 44 people · 1990-2018

Sources

Companies House
Officer appointments and resignations.
Edition
Register edition compiled 11th 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 matched

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