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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

Mason, Rupert Bernard Stuart, Dr

    Related profiles found in government register
  • Mason, Rupert Bernard Stuart, Dr
    British born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 100, St James Road, Northampton, NN5 5LF

      IIF 1
  • Mason, Rupert Bernard Stuart, Dr
    British doctor born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Parsonage Piece, Old Warden, Biggleswade, Bedfordshire, SG18 9HQ

      IIF 2 IIF 3
    • icon of address Shefford House, 15 High Street, Shefford, Bedfordshire, SG17 5DD, England

      IIF 4
  • Mason, Rupert Bernard Stuart, Dr
    British pharmaceutical physician born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Parsonage Piece, Old Warden, Biggleswade, Bedfordshire, SG18 9HQ

      IIF 5
    • icon of address Parsonage Piece, Old Warden, Bedfordshire, SG18 9HQ, England

      IIF 6
  • Dr Rupert Bernard Stuart Mason
    British born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address St George's House, 14 George Street, Huntingdon, Cambridgeshire, PE29 3GH, England

      IIF 7
  • Mason, Rupert Bernard Stuart, Dr
    British director & secretary

    Registered addresses and corresponding companies
    • icon of address 100, St James Road, Northampton, NN5 5LF

      IIF 8
child relation
Offspring entities and appointments
Active 2
  • 1
    BIOGLAN PHARMACEUTICALS LIMITED - 1996-04-29
    PHARMA-CAL LIMITED - 1984-06-06
    icon of address Ernst & Young Llp, The Paragon Building, Counterslip, Bristol, Avon
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar ~ dissolved
    IIF 2 - Director → ME
  • 2
    icon of address 100 St James Road, Northampton
    Liquidation Corporate (2 parents)
    Equity (Company account)
    175,848 GBP2024-03-31
    Officer
    icon of calendar 2002-04-24 ~ now
    IIF 1 - Director → ME
    icon of calendar 2002-04-24 ~ now
    IIF 8 - Secretary → ME
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    IIF 7 - Ownership of shares – More than 25% but not more than 50%OE
    IIF 7 - Ownership of voting rights - More than 25% but not more than 50%OE
    IIF 7 - Right to appoint or remove directorsOE
Ceased 3
  • 1
    icon of address Olliver, Aske, Richmond, North Yorkshire, England
    Active Corporate (3 parents)
    Profit/Loss (Company account)
    -213,026 GBP2020-06-01 ~ 2021-03-01
    Officer
    icon of calendar 2015-09-11 ~ 2021-03-01
    IIF 6 - Director → ME
    icon of calendar 2007-06-15 ~ 2008-07-01
    IIF 5 - Director → ME
  • 2
    ESPERE HEALTHCARE LIMITED - 2025-09-08
    icon of address Shefford House, 15 High Street, Shefford, Bedfordshire, England
    Active Corporate (5 parents)
    Equity (Company account)
    276,983 GBP2024-12-31
    Officer
    icon of calendar 2008-09-12 ~ 2023-09-18
    IIF 4 - Director → ME
  • 3
    icon of address C/o Cooper Parry, New Derwent House, 69-73 Theobalds Road, London, England
    Active Corporate (2 parents)
    Equity (Company account)
    -38,575 GBP2024-03-31
    Officer
    icon of calendar 2007-11-26 ~ 2010-03-19
    IIF 3 - Director → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.