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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Mcdonald, Tamas Prescott

    Related profiles found in government register
  • Mcdonald, Tamas Prescott
    American company director born in August 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 17, Red Lion Square, Holborn, London, WC1R 4QH, United Kingdom

      IIF 1
  • Mcdonald, Tamas Prescott
    American director born in August 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 10 Linden Mews, 9a Mildmay Grove North Islington, London, N1 4RJ

      IIF 2 IIF 3 IIF 4
  • Mcdonald, Tamas Prescott
    American publisher born in August 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 10, Linden Mews, London, N1 4RJ, United Kingdom

      IIF 5
    • icon of address 22, Bracey Street, London, N4 3BJ, England

      IIF 6
    • icon of address Opus Corporate Advisors, 17 Red Lion Square, London, WC1R 4QH, United Kingdom

      IIF 7
    • icon of address Opus Health Capital, 17 Red Lion Square, London, WC1R 4QH, United Kingdom

      IIF 8
  • Mcdonald, Tamas Prescott, Mr.
    American director born in August 1952

    Resident in England

    Registered addresses and corresponding companies
    • icon of address 22 Bracey Street, Islington, London, N4 3BJ, England

      IIF 9
  • Mcdonald, Tamas Prescott, Mr.
    American publisher born in August 1952

    Resident in England

    Registered addresses and corresponding companies
    • icon of address Heath Cottage, Witney Road, Finstock, Chipping Norton, OX7 3DF, England

      IIF 10
  • Mr. Tamas Prescott Mcdonald
    American born in August 1952

    Resident in England

    Registered addresses and corresponding companies
    • icon of address Heath Cottage, Witney Road, Finstock, Chipping Norton, OX7 3DF, England

      IIF 11
    • icon of address 22 Bracey Street, Islington, London, N4 3BJ, England

      IIF 12 IIF 13
child relation
Offspring entities and appointments
Active 7
  • 1
    icon of address Heath Cottage Witney Road, Finstock, Chipping Norton, England
    Active Corporate (2 parents)
    Equity (Company account)
    -38,294 GBP2025-06-30
    Officer
    icon of calendar 2019-06-04 ~ now
    IIF 10 - Director → ME
    Person with significant control
    icon of calendar 2019-06-04 ~ now
    IIF 11 - Right to appoint or remove directorsOE
    IIF 11 - Ownership of voting rights - 75% or moreOE
    IIF 11 - Ownership of shares – 75% or moreOE
  • 2
    icon of address Opus Health Capital, 17 Red Lion Square, London, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2011-07-05 ~ dissolved
    IIF 8 - Director → ME
  • 3
    icon of address Opus Corporate Advisors, 17 Red Lion Square, London, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2011-07-21 ~ dissolved
    IIF 7 - Director → ME
  • 4
    icon of address 17 Red Lion Square, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2009-06-29 ~ dissolved
    IIF 2 - Director → ME
  • 5
    icon of address Olympia House, Armitage Road, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2012-04-24 ~ dissolved
    IIF 5 - Director → ME
  • 6
    icon of address 17 Red Lion Square, Holborn, London, United Kingdom
    Dissolved Corporate (1 parent)
    Officer
    icon of calendar 2014-09-23 ~ dissolved
    IIF 1 - Director → ME
  • 7
    icon of address Heath Cottage Witney Road, Finstock, Chipping Norton, England
    Active Corporate (3 parents)
    Equity (Company account)
    4 GBP2024-04-30
    Officer
    icon of calendar 2023-04-15 ~ now
    IIF 9 - Director → ME
Ceased 4
  • 1
    icon of address 8 Woodford Close, Devizes, Wiltshire
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2016-08-25 ~ 2017-07-16
    IIF 6 - Director → ME
  • 2
    GMK ASSOCIATES LIMITED - 2015-07-17
    OPUS CORPORATE INVESTMENTS LIMITED - 2014-10-22
    OPUS FINANCIAL MANAGEMENT LIMITED - 2013-09-06
    BRAIN HUB LIMITED - 2012-05-16
    HARLEYSTREET PHARMA LIMITED - 2011-06-07
    icon of address Cannon Place, 78 Cannon Street, London, England
    Dissolved Corporate (2 parents)
    Total Assets Less Current Liabilities (Company account)
    351 GBP2016-07-31
    Officer
    icon of calendar 2009-07-03 ~ 2012-05-15
    IIF 4 - Director → ME
  • 3
    HARLEYSTREET ALLIANCE LIMITED - 2011-06-07
    icon of address 17 Red Lion Square, London
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2009-06-29 ~ 2010-11-01
    IIF 3 - Director → ME
  • 4
    icon of address Heath Cottage Witney Road, Finstock, Chipping Norton, England
    Active Corporate (3 parents)
    Equity (Company account)
    4 GBP2024-04-30
    Person with significant control
    icon of calendar 2023-04-15 ~ 2023-10-12
    IIF 13 - Right to appoint or remove directors OE
    IIF 13 - Ownership of shares – More than 25% but not more than 50% OE
    icon of calendar 2023-10-12 ~ 2023-10-13
    IIF 12 - Has significant influence or control OE

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Contains public sector information retrieved at 16 October 2025 and licensed under the Open Government Licence v3.0.