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The red node is Mark. 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

Mark Ptarmigan Douglas Stroyan

Mark Ptarmigan Douglas Stroyan is a trustee of Clervaux Trust Holdings (since 2016). Source: Charity Commission and Companies House records.

Trustee at Clervaux Trust Holdings

  • 1 current role
  • 2 previous roles
  • Served alongside 20 people
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Official record Charity Commission and Companies House · updated 11th October 2026

Roles

3 roles across 3 organisations (1 current, 2 previous)

Rows marked “Likely the same person” come from a record that is a likely relationship: there is sufficient evidence to suggest it concerns the same individual, but it is not established as confirmed. The appointment itself still comes from its official source.

Current roles (1)

  • Clervaux Trust Holdings
    Trustee · 2016-present
    Official record · Charity Commission
    Source
    Charity Commission
    Organisation
    Clervaux Trust Holdings
    Role
    Trustee
    Appointed
    2016-01-21
    Record reference
    Charity 1079074
    Likely the same personCurrent

Previous roles (2)

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

People Mark has served alongside

20 people across 3 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.

77/78 Warwick Square Management Company Limited 16 people · 2012-present

77-78 Warwick Square Freehold Company Limited 16 people · 2009-present

Clervaux Trust Holdings 2 people · 2016-present

People marked “Likely the same person” are reached through a record that is a likely relationship to Mark: there is sufficient evidence to suggest it concerns the same individual, but it is not established as confirmed.

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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