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The red node is Joanna. 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

Joanna Sian Nayler

Joanna Sian Nayler was previously a director of IG Group Limited (until 2023) and 5 other organisations. Source: Companies House records.

Director at IG Group Limited · Director at Market Data Limited

  • 0 current roles
  • 6 previous roles
  • Served alongside 29 people
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Official record Companies House · updated 11th October 2026

Roles

6 roles across 6 organisations (0 current, 6 previous)

Previous roles (6)

  • IG Group Limited
    Director · 2022-2023
    Official record · Companies House
    Source
    Companies House
    Organisation
    IG Group Limited
    Role
    Director
    Appointed
    2022-11-18
    Ended
    2023-07-17
    Record reference
    Company 04008980
    Previous
  • Market Data Limited
    Director · 2022-2023
    Official record · Companies House
    Source
    Companies House
    Organisation
    Market Data Limited
    Role
    Director
    Appointed
    2022-11-18
    Ended
    2023-07-17
    Record reference
    Company 05022252
    Previous
  • IG Index Limited
    Secretary · 2020-2023
    Official record · Companies House
    Source
    Companies House
    Organisation
    IG Index Limited
    Role
    Secretary
    Appointed
    2020-11-12
    Ended
    2023-07-17
    Record reference
    Company 01190902
    Previous
  • IG Markets Limited
    Secretary · 2020-2023
    Official record · Companies House
    Source
    Companies House
    Organisation
    IG Markets Limited
    Role
    Secretary
    Appointed
    2020-11-12
    Ended
    2023-07-17
    Record reference
    Company 04008957
    Previous
  • IG Trading and Investments Limited
    Secretary · 2020-2023
    Official record · Companies House
    Source
    Companies House
    Organisation
    IG Trading and Investments Limited
    Role
    Secretary
    Appointed
    2020-11-12
    Ended
    2023-07-17
    Record reference
    Company 11628764
    Previous
  • IG Group Holdings PLC
    Secretary · 2020-2023
    Official record · Companies House
    Source
    Companies House
    Organisation
    IG Group Holdings PLC
    Role
    Secretary
    Appointed
    2020-03-18
    Ended
    2023-07-17
    Record reference
    Company 04677092
    Previous

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

People Joanna has served alongside

29 people across 6 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.

IG Index Limited 23 people · 1993-present

IG Group Holdings PLC 19 people · 2020-present

IG Markets Limited 16 people · 2020-present

IG Trading and Investments Limited 14 people · 2020-present

IG Group Limited 5 people · 2022-2023

Market Data Limited 5 people · 2022-2023

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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