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The red node is Rhiannon. 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

Dr Rhiannon Mathias

Dr Rhiannon Mathias is a trustee of Incorporated Society of Musicians Trust (since 2025), Welsh Music Guild / Cymdeithas Cerddoriaeth Cymru (since 2023) and 3 other charities and a director of 4 companies. Source: Charity Commission and Companies House records.

Trustee at Incorporated Society of Musicians Trust · Director at Incorporated Society of Musicians Trust

  • 9 current roles
  • Served alongside 135 people
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Official record Charity Commission and Companies House · updated 25th October 2026

Roles

9 roles across 9 organisations

Current roles (9)

Charity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.

People Rhiannon has served alongside

135 people across 9 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.

Independent Society of Musicians 62 people · 1992-present

Canolfan Gerdd William Mathias CYF. 34 people · 2004-present

Incorporated Society of Musicians Trust 20 people · 2025-present

Welsh Music Guild / Cymdeithas Cerddoriaeth Cymru 19 people · 2023-present

Incorporated Society of Musicians Trust 16 people · 2025-present

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

Sources

Charity Commission
Register of Charities: current trustees and appointment dates.
Companies House
Officer appointments and resignations.
Edition
Register edition compiled 25th 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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