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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 Henry Hillyer

Mark Henry Hillyer is a director of 7 companies and holds 3 other current roles. Source: Companies House records.

Director at Newmarket Equine Clinic Holdings Limited · Director at Rikki-Tikki-Tavi LTD

  • 10 current roles
  • 1 previous role
  • Served alongside 23 people
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Official record Companies House · updated 11th October 2026

Roles

11 roles across 11 organisations (10 current, 1 previous)

Current roles (10)

Previous roles (1)

  • NEH Cotswolds LTD
    Director · 2022-2024
    Official record · Companies House
    Source
    Companies House
    Organisation
    NEH Cotswolds LTD
    Role
    Director
    Appointed
    2022-02-17
    Ended
    2024-07-17
    Record reference
    Company 13922903
    Previous

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

People Mark has served alongside

23 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.

Newmarket Equine Clinic Limited 18 people · 2006-present

Yorkshire Equine Hospital Limited 13 people · 2021-present

Yorkshire Equine Clinic Limited 13 people · 2021-present

Berkshire Equine Limited 13 people · 2018-present

NEH Cotswolds LTD 13 people · 2023-present

Newmarket Equine Clinic Holdings Limited 13 people · 2023-present

The Newmarket Equine Hospital Limited 6 people · 2003-present

Lambourn Equine Hospital Limited 1 person · 2011-2021 · current

Lambourn Equine Clinic Limited 1 person · 2011-2021 · current

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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