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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'cathain, Brian John

    Related profiles found in government register
  • O'cathain, Brian John
    Irish chief executive born in November 1959

    Resident in Ireland (republic Of)

    Registered addresses and corresponding companies

    • Exchange Tower, 19 Canning Street, Edinburgh, Midlothian, EH3 8EG, United Kingdom

      IIF 1
  • O'cathain, Brian John
    Irish company director born in November 1959

    Resident in Ireland (republic Of)

    Registered addresses and corresponding companies

    • 28, Albyn Place, Aberdeen, AB10 1YL, United Kingdom

      IIF 2
  • O'cathain, Brian John
    Irish director born in November 1959

    Resident in Ireland (republic Of)

    Registered addresses and corresponding companies

    • Exchang Tower, 19 Canning Street, Edinburgh, Midlothian, EH3 8EG, Scotland

      IIF 3

    • Exchange Tower, 19 Canning Street, Edinburgh, Midlothian, EH3 8EG, Scotland

      IIF 4 IIF 5 IIF 6

    • 16, Old Queen Street, London, SW1H 9HP, United Kingdom

      IIF 7

    • 54 Kenilworth Square, Rathgar, Dublin 6, IRISH, Ireland

      IIF 8 IIF 9
  • O'cathain, Brian John
    Irish born in November 1959

    Resident in Ireland

    Registered addresses and corresponding companies

    • 54, Kenilworth Square South, Dublin, Ireland

      IIF 10
  • O'cathain, Brian John
    Irish chairman born in November 1959

    Resident in Ireland

    Registered addresses and corresponding companies

    • 54, Charlotte Street, London, W1T 2NS, England

      IIF 11 IIF 12
  • O'cathain, Brian John
    Irish director born in November 1959

    Resident in Ireland

    Registered addresses and corresponding companies
  • Mr Brian O'cathain
    Irish born in November 1959

    Resident in Ireland (republic Of)

    Registered addresses and corresponding companies

    • Dalgety House, Viewfield Terrace, Dunfermline, Fife, KY12 7HY, United Kingdom

      IIF 20
  • O'cathain, Brian
    Irish director born in November 1959

    Resident in Ireland

    Registered addresses and corresponding companies

    • The Innovation Centre, Queens Road, Belfast, BT3 9DT, Northern Ireland

      IIF 21
  • Ocathain, Brian John
    Irish businessman born in November 1959

    Registered addresses and corresponding companies

    • 54 Kenilworth Square, Rathgar, Dublin 6, IRISH, Dublin

      IIF 22
  • Mr Brian O'cathain
    Irish born in November 1959

    Resident in Ireland

    Registered addresses and corresponding companies

    • 7, Milltown Path, Off Cowper Road, Rathmines, Dublin, D06X W72, Ireland

      IIF 23
child relation
Offspring entities and appointments 21
  • 1
    ABBEYVILLE PROPERTY LIMITED
    SC501515
    Dalgety House, Viewfield Terrace, Dunfermline, Fife, United Kingdom
    Dissolved Corporate (2 parents, 1 offspring)
    Equity (Company account)
    -2,086 GBP2019-04-30
    Officer
    2015-03-25 ~ dissolved
    IIF 13 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 20 - Right to appoint or remove directors → OE
    IIF 20 - Ownership of shares – More than 50% but less than 75% → OE
    IIF 20 - Ownership of voting rights - More than 50% but less than 75% → OE
  • 2
    AFREN CI (UK) LIMITED - now
    AFREN PRODUCTION & SHIPPING LIMITED
    - 2008-01-11 05841133
    Kinnaird House, 1, Pall Mall East, London
    Dissolved Corporate (13 parents)
    Officer
    2006-06-08 ~ 2007-02-27
    IIF 8 - Director → ME
  • 3
    AFREN GABON LIMITED
    05608523
    Kinnaird House, 1, Pall Mall East, London
    Dissolved Corporate (13 parents)
    Officer
    2005-11-01 ~ 2007-02-27
    IIF 22 - Director → ME
  • 4
    AFREN PLC
    05304498
    Ship Canal House 8th Floor, 98 King Street, Manchester
    Dissolved Corporate (27 parents)
    Officer
    2005-05-10 ~ 2007-02-27
    IIF 9 - Director → ME
  • 5
    CAUSEWAY GEOTHERMAL (NI) LTD
    NI675283
    The Innovation Centre, Queens Road, Belfast, Northern Ireland
    Active Corporate (3 parents)
    Net Assets/Liabilities (Company account)
    -19,820 GBP2024-01-31
    Officer
    2022-05-19 ~ 2025-08-08
    IIF 21 - Director → ME
    Person with significant control
    2021-01-04 ~ 2022-12-12
    IIF 23 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 23 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 23 - Right to appoint or remove directors → OE
  • 6
    ELAND OIL & GAS LIMITED - now
    ELAND OIL & GAS PLC
    - 2019-12-20 SC364753
    ELAND OIL & GAS LIMITED - 2012-02-28
    MOUNTWEST 852 LIMITED - 2009-09-28 SC254183, SC210359, SC219816... (more)
    28 Albyn Place, Aberdeen, United Kingdom
    Active Corporate (26 parents)
    Officer
    2017-10-01 ~ 2019-12-17
    IIF 2 - Director → ME
  • 7
    EUROPA OIL & GAS (HOLDINGS) PLC
    05217946
    54 Charlotte Street, London, England
    Active Corporate (21 parents, 1 offspring)
    Officer
    2018-01-25 ~ 2025-02-11
    IIF 11 - Director → ME
  • 8
    EUROPA OIL & GAS (INISHKEA) LIMITED
    11365352
    54 Charlotte Street, London, England
    Active Corporate (8 parents)
    Officer
    2020-10-22 ~ 2025-02-11
    IIF 16 - Director → ME
  • 9
    EUROPA OIL & GAS (IRELAND EAST) LIMITED
    08715890 08716659
    54 Charlotte Street, London, England
    Active Corporate (8 parents)
    Officer
    2020-10-22 ~ 2025-02-11
    IIF 15 - Director → ME
  • 10
    EUROPA OIL & GAS (IRELAND WEST) LIMITED
    08716659 08715890
    54 Charlotte Street, London, England
    Active Corporate (8 parents)
    Officer
    2020-10-22 ~ 2025-02-11
    IIF 14 - Director → ME
  • 11
    EUROPA OIL & GAS (NEW VENTURES) LIMITED
    - now 07259142
    EUROPA OIL & GAS RESOURCES LIMITED - 2018-05-16
    54 Charlotte Street, London, England
    Active Corporate (10 parents)
    Officer
    2020-10-22 ~ 2025-02-11
    IIF 17 - Director → ME
  • 12
    EUROPA OIL & GAS (UK) LIMITED
    - now 09131600
    SHALE PETROLEUM (UK) LIMITED - 2016-09-05
    54 Charlotte Street, London, England
    Active Corporate (12 parents)
    Officer
    2020-10-22 ~ 2025-02-11
    IIF 18 - Director → ME
  • 13
    EUROPA OIL & GAS (WEST FIRSBY) LIMITED
    04712020
    54 Charlotte Street, London, England
    Active Corporate (13 parents)
    Equity (Company account)
    1 GBP2020-07-31
    Officer
    2020-10-22 ~ 2025-02-11
    IIF 19 - Director → ME
  • 14
    EUROPA OIL & GAS LIMITED
    03093716
    54 Charlotte Street, London, England
    Active Corporate (10 parents)
    Officer
    2020-10-23 ~ 2025-02-11
    IIF 12 - Director → ME
  • 15
    MELROSE MEDITERRANEAN LIMITED
    - now 02823058
    MELROSE VENTURES (UK) LIMITED - 2004-12-16
    DEBITTRADE LIMITED - 1993-06-22
    5th Floor, 167-169 Great Portland Street, London, England
    Active Corporate (19 parents)
    Equity (Company account)
    -701,976 GBP2024-06-30
    Officer
    2013-01-17 ~ 2016-06-24
    IIF 3 - Director → ME
  • 16
    PETROCELTIC ENERGY LIMITED
    - now SC164387
    PETRECO LIMITED
    - 2013-10-01 SC164387
    MELPET I LIMITED - 1999-09-08
    Atria One, 144 Morrison Street, Edinburgh
    Dissolved Corporate (22 parents)
    Officer
    2013-01-17 ~ 2016-06-24
    IIF 4 - Director → ME
  • 17
    PETROCELTIC GREECE LIMITED
    - now SC376121
    MELROSE RESOURCES GREECE LIMITED
    - 2013-10-01 SC376121
    MELROSE RESOURCES COLOMBIA LIMITED - 2012-06-20
    Exchange Tower, 19 Canning Street, Edinburgh, Midlothian
    Dissolved Corporate (6 parents)
    Officer
    2013-01-17 ~ dissolved
    IIF 6 - Director → ME
  • 18
    PETROCELTIC RESOURCES LIMITED - now
    PETROCELTIC RESOURCES PLC
    - 2016-12-12 03210072
    MELROSE RESOURCES PLC
    - 2013-08-19 03210072
    MELROSE PETROLEUM GROUP LIMITED - 1998-04-08
    MELROSE PETROLEUM V LIMITED - 1997-04-07
    5th Floor, 10 Finsbury Square, London, United Kingdom
    Dissolved Corporate (30 parents, 3 offsprings)
    Officer
    2012-10-10 ~ 2016-06-24
    IIF 1 - Director → ME
  • 19
    PETROCELTIC TURKEY LIMITED
    - now SC299984
    MELROSE RESOURCES TURKEY LIMITED
    - 2013-10-01 SC299984
    TM 1252 LIMITED - 2006-04-11 SC331310, SC380174, SC380174... (more)
    C/ Morton Fraser Llp 5th Floor, Quartermile Two, 2 Lister Square, Edinburgh
    Dissolved Corporate (16 parents)
    Officer
    2013-01-17 ~ 2016-06-24
    IIF 5 - Director → ME
  • 20
    R-SPACE GALLERY - now
    R-SPACE GALLERY CIC
    - 2018-04-06 NI610493
    32 Castle Street, Lisburn, County Antrim
    Active Corporate (10 parents)
    Officer
    2016-12-01 ~ 2017-05-22
    IIF 10 - Director → ME
  • 21
    SUNNY HILL ENERGY LIMITED - now
    PETROCELTIC HOLDINGS LIMITED
    - 2019-04-30 09728547
    5th Floor, 167-169 Great Portland Street, London, England
    Active Corporate (11 parents, 3 offsprings)
    Officer
    2015-08-12 ~ 2015-12-02
    IIF 7 - Director → ME

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