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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

Mr Joseph O'brien

    Related profiles found in government register
  • Mr Joseph O'brien
    British born in May 1989

    Resident in Wales

    Registered addresses and corresponding companies
    • 3, Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 1
  • Mr John O'brien
    British born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3 Lon Y Nant, 3 Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 2
    • 3, Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 3
  • Mr John O'brien
    Welsh born in May 1989

    Resident in Wales

    Registered addresses and corresponding companies
    • 3 Lon Y Nant, 3 Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 4
  • Mr John Francis Obrien
    British born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3, Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 5
  • O'brien, Joseph
    British clerical officer born in May 1989

    Resident in Wales

    Registered addresses and corresponding companies
    • 3, Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 6
  • O'brien, John
    British born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3 Lon Y Nant, 3 Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 7
    • 3 Lon Y Nant, Rhiwbina, 3 Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 8
  • O'brien, John
    British director born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3 Lon Y Nant, Rhiwbina, Cardiff, South Glamorgan, CF14 4ST

      IIF 9
  • O'brien, John
    British manager born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3, Low-y-nant, Rhiwbiwa, Cardiff, CF14 4ST, United Kingdom

      IIF 10
  • O'brien, John
    British none born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3, Lon-y-nant, Rhiwbina, Cardiff, CF11 4ST

      IIF 11
  • O'brien, Joseph
    Welsh born in May 1989

    Resident in Wales

    Registered addresses and corresponding companies
    • 25 Douglas House, Ferry Court, Cardiff, CF11 0LD, Wales

      IIF 12
  • Obrien, John Francis
    British manager born in February 1964

    Resident in Wales

    Registered addresses and corresponding companies
    • 3, Lon-y-nant, Cardiff, CF14 4ST, Wales

      IIF 13
  • John Francis O'brien
    British born in February 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 3 Lon-y-nant, Rhiwbina, Cardiff, CF11 4ST

      IIF 14
  • Obrien, John Francis
    Welsh

    Registered addresses and corresponding companies
    • 68 Hunter Street, Docks, Cardiff, South Glamorgan, CF1 6HY

      IIF 15
  • O'brien, John Francis

    Registered addresses and corresponding companies
    • 3, Low-y-nant, Rhiwbiwa, Cardiff, CF14 4ST, United Kingdom

      IIF 16
  • Obrien, John Francis
    Welsh company director born in February 1964

    Registered addresses and corresponding companies
    • 68 Hunter Street, Docks, Cardiff, South Glamorgan, CF1 6HY

      IIF 17
  • O'brien, John Francis
    British none born in February 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 3, Low Y Nant, Rhiwbina, Cardiff, CF11 4ST

      IIF 18
  • Obrien, John Francis
    Welsh born in February 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 3, Lon-y-nant, Cardiff, CF14 4ST, United Kingdom

      IIF 19
child relation
Offspring entities and appointments
Active 8
  • 1
    3 Lon Y Nant, 3 Lon-y-nant, Cardiff, Wales
    Active Corporate (1 parent)
    Officer
    2022-08-10 ~ now
    IIF 7 - Director → ME
    Person with significant control
    2022-08-12 ~ now
    IIF 2 - Has significant influence or controlOE
  • 2
    Clifton House, Four Elms Road, Cardiff, South Glamorgan
    Liquidation Corporate (3 parents)
    Officer
    1991-05-20 ~ now
    IIF 17 - Director → ME
    1991-05-20 ~ now
    IIF 15 - Secretary → ME
  • 3
    3 Low-y-nant, Rhiwbiwa, Cardiff, Wales
    Dissolved Corporate (1 parent)
    Officer
    2011-06-01 ~ dissolved
    IIF 11 - Director → ME
    2010-06-07 ~ dissolved
    IIF 16 - Secretary → ME
  • 4
    3 Lon-y-nant, Cardiff, United Kingdom
    Active Corporate (1 parent)
    Equity (Company account)
    1 GBP2019-07-31
    Officer
    2017-07-13 ~ now
    IIF 19 - Director → ME
  • 5
    3 Lon-y-nant, Cardiff, Wales
    Active Corporate (1 parent)
    Officer
    2025-01-01 ~ now
    IIF 8 - Director → ME
    Person with significant control
    2025-01-01 ~ now
    IIF 3 - Right to appoint or remove directorsOE
    IIF 3 - Ownership of shares – 75% or moreOE
    IIF 3 - Ownership of voting rights - 75% or moreOE
  • 6
    AJ CONSTRUCTION (GB) LIMITED - 2006-10-16
    3 Lon Y Nant, Rhiwbina, Cardiff
    Dissolved Corporate (1 parent)
    Officer
    2006-10-16 ~ dissolved
    IIF 9 - Director → ME
  • 7
    3 Lon Y Nant, Rhiwbina, Cardiff
    Dissolved Corporate (1 parent)
    Officer
    2012-08-20 ~ dissolved
    IIF 18 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 14 - Ownership of voting rights - 75% or more as a member of a firmOE
    IIF 14 - Ownership of shares – 75% or more as a member of a firmOE
  • 8
    3 Lon-y-nant, Cardiff, Wales
    Dissolved Corporate (1 parent)
    Officer
    2020-09-17 ~ dissolved
    IIF 13 - Director → ME
    Person with significant control
    2020-09-17 ~ dissolved
    IIF 5 - Ownership of voting rights - 75% or moreOE
    IIF 5 - Right to appoint or remove directorsOE
    IIF 5 - Ownership of shares – 75% or moreOE
Ceased 3
  • 1
    3 Lon Y Nant, 3 Lon-y-nant, Cardiff, Wales
    Active Corporate (1 parent)
    Officer
    2022-07-04 ~ 2022-08-10
    IIF 12 - Director → ME
    Person with significant control
    2022-07-04 ~ 2022-09-10
    IIF 4 - Ownership of voting rights - 75% or more OE
    IIF 4 - Ownership of shares – 75% or more OE
    IIF 4 - Right to appoint or remove directors OE
  • 2
    3 Low-y-nant, Rhiwbiwa, Cardiff, Wales
    Dissolved Corporate (1 parent)
    Officer
    2010-06-07 ~ 2011-01-09
    IIF 10 - Director → ME
  • 3
    3 Lon-y-nant, Cardiff, Wales
    Active Corporate (1 parent)
    Officer
    2024-12-09 ~ 2025-01-01
    IIF 6 - Director → ME
    Person with significant control
    2024-12-09 ~ 2025-01-01
    IIF 1 - Ownership of shares – 75% or more OE
    IIF 1 - Ownership of voting rights - 75% or more OE
    IIF 1 - Right to appoint or remove directors OE

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