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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

Mr Mark Andrew Underdown

    Related profiles found in government register
  • Mr Mark Andrew Underdown
    British born in July 1969

    Resident in Wales

    Registered addresses and corresponding companies
    • U6, Fircroft Business Centre, Fircroft Way, Edenbridge, Kent, TN8 6EN

      IIF 1
    • Pembroke House, Charter Court, Swansea Enterprise Park, Swansea, SA7 9FS, Wales

      IIF 2 IIF 3 IIF 4
  • Mark Andrew Underdown
    British born in July 1969

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Pembroke House, Charter Court, Swansea, Swansea, SA7 9FS, United Kingdom

      IIF 5
  • Underdown, Mark Andrew
    British company director born in July 1969

    Resident in Wales

    Registered addresses and corresponding companies
    • 95, Cherry Grove, Sketty, Swansea, SA2 8AX, Wales

      IIF 6
  • Underdown, Mark Andrew
    British director born in July 1969

    Resident in Wales

    Registered addresses and corresponding companies
    • U6, Fircroft Business Centre, Fircroft Way, Edenbridge, Kent, TN8 6EN, United Kingdom

      IIF 7
    • 95, Cherry Fawr, Derwen Fawr, Swansea, SA2 8AX, United Kingdom

      IIF 8 IIF 9 IIF 10
    • 95, Cherry Grove, Sketty, Swansea, West Glamorgan, SA2 8AX, United Kingdom

      IIF 11
  • Underdown, Mark Andrew
    British born in July 1969

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Pembroke House, Charter Court, Swansea, Swansea, SA7 9FS, United Kingdom

      IIF 12
child relation
Offspring entities and appointments
Active 6
  • 1
    44 St Helens Road, Swansea, Swansea
    Dissolved Corporate (2 parents)
    Officer
    2012-10-30 ~ dissolved
    IIF 10 - Director → ME
  • 2
    Pembroke House Charter Court, Swansea Enterprise Park, Swansea, Wales
    Dissolved Corporate (2 parents)
    Equity (Company account)
    -309,454 GBP2022-08-30
    Officer
    2013-08-06 ~ dissolved
    IIF 6 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 4 - Ownership of shares – More than 25% but not more than 50%OE
  • 3
    Pembroke House Charter Court, Swansea Enterprise Park, Swansea, Wales
    Dissolved Corporate (2 parents)
    Equity (Company account)
    -108,711 GBP2021-05-31
    Officer
    2012-05-28 ~ dissolved
    IIF 8 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 3 - Has significant influence or controlOE
  • 4
    44 St Helens Road, Swansea, Swansea
    Dissolved Corporate (2 parents)
    Officer
    2012-10-31 ~ dissolved
    IIF 9 - Director → ME
  • 5
    Pembroke House Charter Court, Swansea, Swansea, United Kingdom
    Active Corporate (2 parents)
    Officer
    2024-12-23 ~ now
    IIF 12 - Director → ME
    Person with significant control
    2024-12-23 ~ now
    IIF 5 - Ownership of shares – More than 25% but not more than 50%OE
    IIF 5 - Ownership of voting rights - More than 25% but not more than 50%OE
  • 6
    THE PLUMBING ACADEMY TRAINING COMPANY LIMITED - 2010-10-13
    U6 Fircroft Business Centre, Fircroft Way, Edenbridge, Kent
    Dissolved Corporate (2 parents)
    Equity (Company account)
    38,868 GBP2020-09-30
    Officer
    2012-11-16 ~ dissolved
    IIF 7 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 1 - Has significant influence or controlOE
Ceased 1
  • 1
    Pembroke House Charter Court, Swansea Enterprise Park, Swansea, Wales
    Active Corporate (3 parents, 2 offsprings)
    Equity (Company account)
    Retained earnings (accumulated losses)
    701,042 GBP2024-12-31
    Officer
    2009-03-27 ~ 2024-12-24
    IIF 11 - Director → ME
    Person with significant control
    2016-04-06 ~ 2024-12-24
    IIF 2 - Ownership of shares – More than 25% but not more than 50% OE

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