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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 John Krob Castle

  • Mr John Krob Castle
    American born in December 1940

    Resident in United States

    Registered addresses and corresponding companies
    • 4 Bank Court, Weldon Road, Loughborough, Leicestershire, LE11 5RF, United Kingdom

      IIF 1 IIF 2 IIF 3
    • 150 East 58th Street, 38th Floor, New York, 10155, United States

      IIF 4
child relation
Offspring entities and appointments 4
  • 1
    CAMPDEN INSTRUMENTS LTD
    - now 05743624 02411089
    RMTE LTD - 2006-06-29
    4 Bank Court, Weldon Road, Loughborough, Leicestershire, United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    1 GBP2024-03-31
    Person with significant control
    2021-04-03 ~ now
    IIF 1 - Ownership of shares – More than 50% but less than 75% OE
    IIF 1 - Right to appoint or remove directors OE
    IIF 1 - Ownership of voting rights - More than 50% but less than 75% OE
  • 2
    CERTAIN INDEXES LIMITED
    - now 02411089
    CAMPDEN INSTRUMENTS LIMITED - 2005-12-02
    DE FACTO 149 LIMITED - 1990-07-05
    4 Bank Court, Weldon Road, Loughborough, Leicestershire
    Active Corporate (20 parents)
    Profit/Loss (Company account)
    71,157 GBP2024-01-01 ~ 2024-12-31
    Person with significant control
    2021-04-03 ~ now
    IIF 3 - Right to appoint or remove directors OE
    IIF 3 - Ownership of shares – More than 50% but less than 75% OE
    IIF 3 - Ownership of voting rights - More than 50% but less than 75% OE
  • 3
    LAFAYETTE INSTRUMENTS EUROPE LTD
    05792231
    4 Bank Court, Weldon Road, Loughborough, Leicestershire, United Kingdom
    Active Corporate (6 parents)
    Equity (Company account)
    1 GBP2024-04-30
    Person with significant control
    2021-04-03 ~ now
    IIF 2 - Right to appoint or remove directors OE
    IIF 2 - Ownership of shares – More than 50% but less than 75% OE
    IIF 2 - Ownership of voting rights - More than 50% but less than 75% OE
  • 4
    TTC UK HOLDINGS LIMITED
    05806095
    Units 2 - 4 Cunningham Court, Shadsworth Business Park, Blackburn, Lancashire
    Active Corporate (24 parents, 1 offspring)
    Person with significant control
    2016-04-06 ~ 2022-04-25
    IIF 4 - Right to appoint or remove directors OE
    IIF 4 - Ownership of voting rights - More than 50% but less than 75% OE

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