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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.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Mr David John Mason

    Related profiles found in government register
  • Mr David John Mason
    British born in October 1963

    Resident in England

    Registered addresses and corresponding companies
    • Unit 43, Gosport Business Centre, Frater Gate, Aerodrome Road, Gosport, Hampshire, PO13 0FQ, United Kingdom

      IIF 1
    • 869 High Road, London, N12 8QA, United Kingdom

      IIF 2
    • White Chapel Building, 2nd Floor, 10 Whitechapel High Street, London, E1 8QS, England

      IIF 3
  • Mason, David John
    British born in October 1963

    Resident in England

    Registered addresses and corresponding companies
    • Unit 43, Gosport Business Centre, Frater Gate, Aerodrome Road, Gosport, Hampshire, PO13 0FQ, United Kingdom

      IIF 4
    • 869 High Road, London, N12 8QA, United Kingdom

      IIF 5
    • White Chapel Building, 2nd Floor, 10 Whitechapel High Street, London, E1 8QS, England

      IIF 6
  • Mr David John Mason
    British born in October 1963

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 89 Leigh Road, Eastleigh, Hampshire, SO50 9DQ, United Kingdom

      IIF 7
child relation
Offspring entities and appointments 4
  • 1
    SEABORNE RISK LIMITED
    10442484
    869 High Road, London, United Kingdom
    Active Corporate (1 parent)
    Officer
    2016-10-24 ~ now
    IIF 5 - Director → ME
    Person with significant control
    2016-10-24 ~ now
    IIF 2 - Ownership of shares – 75% or more OE
    IIF 2 - Right to appoint or remove directors OE
    IIF 2 - Ownership of voting rights - 75% or more OE
  • 2
    TRANSWORLD YACHTS SAILING LIMITED
    05935105
    89 Leigh Road, Eastleigh
    Active Corporate (6 parents)
    Person with significant control
    2020-10-30 ~ 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
  • 3
    WATERBORNE MANAGEMENT SERVICES LIMITED
    11903809
    Unit 43, Gosport Business Centre Frater Gate, Aerodrome Road, Gosport, Hampshire, United Kingdom
    Active Corporate (2 parents)
    Officer
    2019-03-25 ~ now
    IIF 4 - Director → ME
    Person with significant control
    2019-03-25 ~ now
    IIF 1 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 4
    WATERBORNE UNDERWRITING AGENCY LIMITED
    - now 03755036
    IBIS (484) LIMITED - 1999-07-01
    White Chapel Building 2nd Floor, 10 Whitechapel High Street, London, England
    Active Corporate (14 parents)
    Officer
    2005-05-11 ~ now
    IIF 6 - Director → ME
    Person with significant control
    2016-04-13 ~ 2024-10-29
    IIF 3 - Ownership of voting rights - 75% or more OE
    IIF 3 - Right to appoint or remove directors OE
    IIF 3 - Ownership of shares – 75% or more OE

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.