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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

O'neill, Mary Catherine

    Related profiles found in government register
  • O'neill, Mary Catherine
    Northern Irish born in March 1989

    Resident in Northern Ireland

    Registered addresses and corresponding companies
    • Unit 41, Work West Business Park, Belfast, BT11 8BU, Northern Ireland

      IIF 1
    • Unit 41, Workwest Business Park, Belfast, Antrim, BT11 8BU, Northern Ireland

      IIF 2
    • Unit 29 St James Trading Estate, 278 Barton Street, Gloucester, GL1 4JJ, England

      IIF 3
  • O'neill, Mary Catherine
    Northern Irish civil engineer born in March 1989

    Resident in Northern Ireland

    Registered addresses and corresponding companies
    • Amelio Utilities Ltd, Unit 41, Work West Business Park, Glen Road, Belfast, BT11 8BU, Northern Ireland

      IIF 4
  • Ms Mary Catherine O'neill
    Northern Irish born in March 1989

    Resident in Northern Ireland

    Registered addresses and corresponding companies
    • Unit 41, Work West Business Park, Belfast, BT11 8BU, Northern Ireland

      IIF 5
    • Unit 41, Workwest Business Park, Belfast, Antrim, BT11 8BU

      IIF 6
    • Unit 29 St James Trading Estate, 278 Barton Street, Gloucester, GL1 4JJ

      IIF 7
child relation
Offspring entities and appointments
Active 3
  • 1
    D J GREEN (UK) LIMITED - 2015-05-20
    D J GREEN LIMITED - 1999-07-08
    5 Spinnaker Road, Hempsted, Gloucester, England
    Active Corporate (2 parents)
    Equity (Company account)
    Retained earnings (accumulated losses)
    1,138,830 GBP2024-03-31
    Officer
    2014-11-05 ~ now
    IIF 3 - Director → ME
  • 2
    Unit 41 Work West Business Park, Belfast, Northern Ireland
    Active Corporate (1 parent)
    Officer
    2024-09-19 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2024-09-19 ~ now
    IIF 5 - Ownership of shares – 75% or moreOE
    IIF 5 - Ownership of voting rights - 75% or moreOE
    IIF 5 - Right to appoint or remove directorsOE
  • 3
    Unit 41 Workwest Business Park, Belfast, Antrim
    Active Corporate (1 parent, 1 offspring)
    Equity (Company account)
    Retained earnings (accumulated losses)
    1,185,432 GBP2024-03-31
    Officer
    2013-03-14 ~ now
    IIF 2 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 6 - Right to appoint or remove directorsOE
    IIF 6 - Ownership of voting rights - 75% or moreOE
    IIF 6 - Ownership of shares – 75% or moreOE
Ceased 2
  • 1
    D J GREEN (UK) LIMITED - 2015-05-20
    D J GREEN LIMITED - 1999-07-08
    5 Spinnaker Road, Hempsted, Gloucester, England
    Active Corporate (2 parents)
    Equity (Company account)
    Retained earnings (accumulated losses)
    1,138,830 GBP2024-03-31
    Person with significant control
    2016-04-06 ~ 2021-01-01
    IIF 7 - Has significant influence or control OE
  • 2
    Arthur House, 41 Arthur Street, Belfast, Northern Ireland
    Active Corporate (10 parents, 3 offsprings)
    Officer
    2014-10-21 ~ 2017-11-14
    IIF 4 - Director → ME

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