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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

Hall, Karl John

    Related profiles found in government register
  • Hall, Karl John
    British born in January 1972

    Resident in England

    Registered addresses and corresponding companies
    • Suite 235 Kinetic Business Centre, Theobald Street, Borehamwood, Hertfordshire, WD6 4PJ, England

      IIF 1
  • Hall, Karl John
    British civil engineering born in January 1972

    Resident in England

    Registered addresses and corresponding companies
    • 6 Aston Close, Bushey, Hertfordshire, WD23 4JT, England

      IIF 2
  • Hall, Karl John
    British director born in January 1972

    Resident in England

    Registered addresses and corresponding companies
    • 101, New Cavendish Street, 1st Floor South, London, W1W 6XH, United Kingdom

      IIF 3
  • Mr Karl John Hall
    British born in January 1972

    Resident in England

    Registered addresses and corresponding companies
    • Suite 235 Kinetic Business Centre, Theobald Street, Borehamwood, Hertfordshire, WD6 4PJ, England

      IIF 4
    • 6 Aston Close, Bushey, Hertfordshire, WD23 4JT, England

      IIF 5
child relation
Offspring entities and appointments 3
  • 1
    FOCUSED ENGINEERING LIMITED
    03708611
    505 Pinner Road, Harrow, Middlesex, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    1999-02-04 ~ dissolved
    IIF 2 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 5 - Ownership of shares – More than 50% but less than 75% OE
    IIF 5 - Right to appoint or remove directors OE
    IIF 5 - Ownership of voting rights - More than 50% but less than 75% OE
  • 2
    INRAIL SOLUTIONS LIMITED
    10614787
    Unit 411 Centennial Avenue, Elstree, Borehamwood, England
    Active Corporate (5 parents, 1 offspring)
    Officer
    2017-02-23 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2019-06-14 ~ now
    IIF 4 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 4 - Ownership of shares – More than 25% but not more than 50% OE
  • 3
    JSK NETWORKS LTD
    13739277
    101 New Cavendish Street, 1st Floor South, London, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    2021-11-12 ~ 2023-10-03
    IIF 3 - Director → ME

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