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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'leary, Mark

    Related profiles found in government register
  • O'leary, Mark
    Irish born in October 1963

    Resident in Ireland

    Registered addresses and corresponding companies
    • Airport Road West, Sydenham, Belfast, BT3 9EE

      IIF 1
  • O'leary, Mark
    Irish chief financial officer born in October 1963

    Resident in Ireland

    Registered addresses and corresponding companies
    • Airport Road West, Sydenham, Belfast, BT3 9EE

      IIF 2
    • C/o Calor Gas, Airport Road West, Belfast, BT3 9EE

      IIF 3
  • O'leary, Mark
    Irish finance director born in October 1963

    Resident in Ireland

    Registered addresses and corresponding companies
    • Calor Gas Ireland, Long Mile Road, Dublin 12, Ireland

      IIF 4
  • O'leary, Mark
    Irish accountant born in June 1960

    Resident in Ireland

    Registered addresses and corresponding companies
    • 23 St Assams Park, Raheny, Dublin 5, Ireland

      IIF 5
child relation
Offspring entities and appointments 5
  • 1
    BLUGAS (N.I.) LIMITED
    NI024915
    C/o Calor Gas, Airport Road West, Belfast
    Dissolved Corporate (16 parents)
    Officer
    2018-09-14 ~ dissolved
    IIF 3 - Director → ME
  • 2
    CALOR GAS NORTHERN IRELAND LIMITED
    NI008192
    Airport Road West, Sydenham, Belfast
    Active Corporate (22 parents, 1 offspring)
    Officer
    2018-09-14 ~ 2023-06-30
    IIF 2 - Director → ME
  • 3
    HAMILTON GAS PRODUCTS LIMITED
    NI053912
    7 Balloo Crescent, Bangor, Northern Ireland
    Active Corporate (14 parents)
    Officer
    2019-01-09 ~ 2023-06-20
    IIF 4 - Director → ME
  • 4
    LOVE IS FOR LIFE TRUST LIMITED
    NI026201
    21 Carricknab Road, Ballykinlar, Downpatrick, Co Down
    Dissolved Corporate (21 parents)
    Officer
    2008-02-15 ~ 2018-12-01
    IIF 5 - Director → ME
  • 5
    PRESSURE TEST SERVICES LIMITED
    NI003380
    Airport Road West, Sydenham, Belfast
    Active Corporate (14 parents)
    Officer
    2018-09-14 ~ 2023-06-30
    IIF 1 - Director → ME

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Contains public sector information retrieved at 5 April 2026 and licensed under the Open Government Licence v3.0.