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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, Terence Joseph

    Related profiles found in government register
  • O'neill, Terence Joseph
    British born in June 1952

    Resident in England

    Registered addresses and corresponding companies
    • 56, Franklynn Road, Haywards Heath, RH16 4DH, England

      IIF 1
  • O'neill, Terence Joseph
    British chartered engineer born in June 1952

    Resident in England

    Registered addresses and corresponding companies
    • Airport House, Unit 10, Purley Way, Croydon, CR0 0XZ, England

      IIF 2
    • Cloudshill, 4 The Tithings, Swalcliffe, Oxfordshire, OX15 5DR, United Kingdom

      IIF 3
  • O'neill, Terence Joseph
    British company director born in June 1952

    Resident in England

    Registered addresses and corresponding companies
    • 6, Harison Road, Seaford, BN25 3PN, England

      IIF 4
  • O'neill, Terence Joseph
    British director born in June 1952

    Resident in England

    Registered addresses and corresponding companies
    • Airport House, Unit 10, Purley Way, Croydon, CR0 0XZ, England

      IIF 5
  • O'neill, Terence Joseph
    British fire engineer born in June 1952

    Resident in England

    Registered addresses and corresponding companies
    • 30, Murdock Road, Bicester, Oxfordshire, OX26 4PP, England

      IIF 6
    • Airport House, Unit 10, Purley Way, Croydon, CR0 0XZ, England

      IIF 7
    • 6 Harison Road, Seaford, East Sussex, BN25 3PN

      IIF 8
  • O'neill, Terence Joseph
    British chartered engineer born in June 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Cloudshill, 4 The Tithings, Swalcliffe, Oxfordshire, OX15 5DR, Uk

      IIF 9
  • O'neill, Terence Joseph
    British fire engineer born in June 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Cloudshill, 4 The Tithings, Swalcliffe, Oxfordshire, OX15 5DR, Uk

      IIF 10
  • Mr Terence Joseph O'neill
    British born in June 1952

    Resident in England

    Registered addresses and corresponding companies
    • Socotec House, Bretby Business Park, Ashby Road, Bretby, Burton Upon Trent, DE15 0YZ, England

      IIF 11
    • 7, The Avenue, Eastbourne, East Sussex, BN21 3YA, England

      IIF 12
    • 56, Franklynn Road, Haywards Heath, RH16 4DH, England

      IIF 13
child relation
Offspring entities and appointments
Active 2
  • 1
    Airport House Unit 10, Purley Way, Croydon
    Dissolved Corporate (3 parents)
    Officer
    2012-03-18 ~ dissolved
    IIF 7 - Director → ME
  • 2
    56 Franklynn Road, Haywards Heath, England
    Active Corporate (2 parents)
    Officer
    2025-12-12 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2025-12-12 ~ now
    IIF 13 - Ownership of shares – More than 25% but not more than 50%OE
    IIF 13 - Ownership of voting rights - More than 25% but not more than 50%OE
    IIF 13 - Right to appoint or remove directorsOE
Ceased 6
  • 1
    TRENTON CONSULTANTS LIMITED - 2011-06-09
    TRENTON FIRE LIMITED - 2007-04-27
    Related registration: 06336226
    Socotec House Bretby Business Park, Bretby, Burton-on-trent, England
    Active Corporate (3 parents)
    Officer
    2004-04-01 ~ 2009-04-03
    IIF 10 - Director → ME
    2010-09-01 ~ 2019-04-12
    IIF 5 - Director → ME
  • 2
    Prospect House, 1 Prospect Place, Pride Park, Derby
    Liquidation Corporate (3 parents, 1 offspring)
    Officer
    2006-11-17 ~ 2019-04-12
    IIF 2 - Director → ME
    Person with significant control
    2016-04-06 ~ 2019-04-12
    IIF 11 - Ownership of shares – More than 25% but not more than 50% OE
  • 3
    BROOKFORD ASSOCIATES LIMITED - 1998-10-29
    128 Milward Road, Hastings, England
    Active Corporate (2 parents)
    Equity (Company account)
    8 GBP2024-06-23
    Officer
    2016-10-04 ~ 2018-10-23
    IIF 4 - Director → ME
    Person with significant control
    2016-10-10 ~ 2018-10-10
    IIF 12 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 4
    BUTLER & YOUNG GROUP LIMITED - 2022-07-13
    BYL GROUP LIMITED - 2007-01-19
    BYL GROUP PLC - 2006-03-24
    BYL PLC - 2005-08-04
    ALPAS PLC - 2004-03-31
    Socotec House Bretby Business Park, Ashby Road, Bretby, Burton Upon Trent, England
    Active Corporate (4 parents, 8 offsprings)
    Officer
    2004-07-07 ~ 2019-04-12
    IIF 3 - Director → ME
  • 5
    BUTLER & YOUNG APPROVED INSPECTORS LIMITED - 2021-04-03
    BUTLER & YOUNG LIMITED - 2017-05-09
    BUTLER & YOUNG ASSOCIATES BUILDING CONTROL AND FIRESAFETY CONSULTANTS LIMITED - 1999-03-11
    BUTLER & YOUNG ASSOCIATES BUILDING CONTROL AND FIREENGINEERING LIMITED - 1996-05-02
    Socotec House Bretby Business Park, Bretby, Burton-on-trent, England
    Active Corporate (11 parents)
    Officer
    2001-01-01 ~ 2004-07-07
    IIF 8 - Director → ME
  • 6
    Other registered number: 05047663
    Socotec House Bretby Business Park, Bretby, Burton-on-trent, England
    Active Corporate (3 parents)
    Officer
    2011-02-08 ~ 2019-04-12
    IIF 6 - Director → ME
    2007-08-07 ~ 2010-09-01
    IIF 9 - Director → ME

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