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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

O'neill, Nial, Mr.

    Related profiles found in government register
  • O'neill, Nial, Mr.
    Irish born in September 1962

    Resident in Northern Ireland

    Registered addresses and corresponding companies
    • 12 Palace Gardens, Belfast, BT15 5DT, Northern Ireland

      IIF 1
  • O'neill, Nial, Mr.
    Irish architect born in September 1962

    Resident in Northern Ireland

    Registered addresses and corresponding companies
    • Unit 2, 5-7 Conway Street, Belfast, Antrim, BT13 2DE, United Kingdom

      IIF 2
  • Mr Nial O'neill
    Irish born in September 1962

    Resident in Northern Ireland

    Registered addresses and corresponding companies
    • 12 Palace Gardens, Belfast, Co. Antrim, BT15 5DT, Northern Ireland

      IIF 3 IIF 4
  • O'neill, Nial

    Registered addresses and corresponding companies
    • 12 Palace Gardens, Chichester Park North, Belfast, County Antrim, BT7 3FH

      IIF 5
child relation
Offspring entities and appointments 2
  • 1
    D-ON ARCHITECTS LTD
    - now NI049889 NI631422
    DONNELLY O NEILL ARCHITECTS LIMITED
    - 2018-06-11 NI049889
    1st Floor 19 Arthur Street, Belfast, Co. Antrim, Northern Ireland
    Active Corporate (5 parents)
    Officer
    2004-03-05 ~ 2025-03-31
    IIF 2 - Director → ME
    2004-03-05 ~ 2004-05-08
    IIF 5 - Secretary → ME
    Person with significant control
    2016-04-06 ~ 2025-03-31
    IIF 4 - Ownership of shares – 75% or more OE
    IIF 4 - Ownership of voting rights - 75% or more OE
  • 2
    DON DESIGN SERVICES LTD
    - now NI631422
    DON ARCHITECTS LTD
    - 2018-06-07 NI631422 NI049889
    1st Floor 19 Arthur Street, Belfast, Northern Ireland
    Active Corporate (3 parents)
    Officer
    2015-05-20 ~ 2025-03-31
    IIF 1 - Director → ME
    Person with significant control
    2016-04-06 ~ 2025-03-31
    IIF 3 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 3 - Ownership of voting rights - More than 25% but not more than 50% OE

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