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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

Gwilym, Siwan Mair, Dr

    Related profiles found in government register
  • Gwilym, Siwan Mair, Dr
    British doctor born in April 1976

    Registered addresses and corresponding companies
    • 3 Saint Johns Court, Church Road, Canton, Cardiff, CF5 1NY

      IIF 1
  • Gwilym, Siwan Mair, Dr
    British

    Registered addresses and corresponding companies
    • Islwyn, Llangristiolus, Bodorgan, Anglesey, LL62 5DL, Wales

      IIF 2
  • Gwilym, Siwan Mair, Dr
    British dcotor

    Registered addresses and corresponding companies
    • 3 Saint Johns Court, Church Road, Canton, Cardiff, CF5 1NY

      IIF 3
  • Gwilym, Siwan Mair, Dr
    British gp

    Registered addresses and corresponding companies
    • 15, Armoury Drive, Heath, Cardiff, South Glamorgan, CF14 4NP

      IIF 4
    • 17, St Andrew's Crescent, Cardiff, CF10 3DB, Wales

      IIF 5
child relation
Offspring entities and appointments 2
  • 1
    PL VENTURES LTD
    - now 04226409
    SIDAN SOLUTIONS LIMITED
    - 2002-01-15 04226409
    17 St Andrew's Crescent, Cardiff, Wales
    Dissolved Corporate (5 parents)
    Officer
    2001-05-31 ~ 2003-07-01
    IIF 1 - Director → ME
    2009-04-01 ~ dissolved
    IIF 5 - Secretary → ME
    2009-04-01 ~ 2009-04-01
    IIF 4 - Secretary → ME
    2001-05-31 ~ 2001-05-31
    IIF 3 - Secretary → ME
  • 2
    WILLIAMS & GWILYM LIMITED
    05919229
    Islwyn, Llangristiolus, Bodorgan, Anglesey, Wales
    Active Corporate (2 parents)
    Officer
    2006-08-30 ~ 2021-09-01
    IIF 2 - Secretary → ME

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.