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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'brien, Colm John

    Related profiles found in government register
  • O'brien, Colm John
    Ireland ceo born in August 1972

    Resident in Australia

    Registered addresses and corresponding companies
    • Vintners Place, 4th Floor, 68 Upper Thames Street, London, EC4V 3BJ, England

      IIF 1
  • O'brien, Colm John
    Ireland director born in August 1972

    Resident in Australia

    Registered addresses and corresponding companies
    • 30 Grantham Street, Floreat, Western Australia 6014, Australia

      IIF 2 IIF 3 IIF 4
  • O'brien, Colm John
    Irish banker born in August 1972

    Registered addresses and corresponding companies
    • 110c Blackheath Hill, Greenwich, London, SE10 8AG

      IIF 5
child relation
Offspring entities and appointments 5
  • 1
    110 BLACKHEATH HILL MANAGEMENT LIMITED
    01119250
    110 Blackheath Hill, London
    Active Corporate (27 parents)
    Officer
    1997-11-21 ~ 2004-11-19
    IIF 5 - Director → ME
  • 2
    BEACON EVENTS CONFERENCES AND EXHIBITIONS LTD - now
    ASPERMONT UK LTD - 2019-05-09
    BEACON EVENTS MEDIA LIMITED
    - 2017-06-20 04682865
    ASPERMONT UK LIMITED
    - 2017-05-10 04682865
    MINING COMMUNICATIONS LIMITED
    - 2008-12-18 04682865
    101 New Cavendish Street, 1st Floor South, London, United Kingdom
    Active Corporate (19 parents, 1 offspring)
    Officer
    2008-03-26 ~ 2017-05-17
    IIF 3 - Director → ME
  • 3
    MAGYAR MINING LIMITED
    - now 04617884
    MAGYAR MINING PLC
    - 2009-01-06 04617884
    ST ISTVAN GOLD PLC - 2004-07-28
    Wework Aldgate Tower Aspermont Media Att: Alex Kent, 2 Leman Street, London, United Kingdom
    Dissolved Corporate (10 parents)
    Officer
    2008-04-23 ~ 2017-06-20
    IIF 1 - Director → ME
  • 4
    MINING JOURNAL BOOKS LIMITED
    01172046
    1 Poultry, London, England
    Dissolved Corporate (12 parents)
    Officer
    2008-03-26 ~ 2015-06-30
    IIF 4 - Director → ME
  • 5
    THE MINING JOURNAL LIMITED
    - now 02548967 00877552
    ANDREW HOUSE LIMITED - 1992-01-30
    Moor Place, Fore Street Avenue, London, England
    Active Corporate (13 parents, 1 offspring)
    Officer
    2008-03-26 ~ 2015-06-30
    IIF 2 - Director → ME

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