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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

Handkammer, Harry Martin

    Related profiles found in government register
  • Handkammer, Harry Martin
    British born in February 1952

    Resident in England

    Registered addresses and corresponding companies
    • Silverstone Circuit, Towcester, Northamptonshire, NN12 8TN, United Kingdom

      IIF 1
    • Silverstone Circuit, Silverstone, Towcester, Northamptonshire, NN12 8TN

      IIF 2
  • Handkammer, Harry Martin
    British development director born in February 1952

    Resident in England

    Registered addresses and corresponding companies
    • Silverstone Circuit, Silverstone, Towcester, Northamptonshire, NN12 8TN

      IIF 3
  • Handkammer, Harry Martin
    British none born in February 1952

    Resident in England

    Registered addresses and corresponding companies
    • Unit 5, Hartlebury Trading Estate, Hartlebury, Worcestershire, DY10 4JB, United Kingdom

      IIF 4
  • Handkammer, Harry Martin
    British businessman born in February 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Unit 5, Hartlebury Trading Estate, Hartlebury, DY10 4JB, United Kingdom

      IIF 5
  • Harry Martin Handkammer
    British born in February 1952

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Unit 5, Hartlebury Trading Estate, Hartlebury, DY10 4JB, United Kingdom

      IIF 6
child relation
Offspring entities and appointments 5
  • 1
    ATT MANUFACTURING LIMITED
    10339166
    Unit 5 Hartlebury Trading Estate, Hartlebury, United Kingdom
    Active Corporate (3 parents)
    Officer
    2016-08-22 ~ 2018-01-15
    IIF 5 - Director → ME
    Person with significant control
    2016-08-22 ~ 2018-01-15
    IIF 6 - Right to appoint or remove directors OE
    IIF 6 - Has significant influence or control OE
  • 2
    ATT WALTERS LIMITED
    - now 09723207
    HELIUM MIRACLE 177 LIMITED
    - 2015-08-17 09723207 09781433... (more)
    Arundel House 1 Amberley Court, Whitworth Road, Crawley, West Sussex
    Liquidation Corporate (5 parents)
    Officer
    2015-08-08 ~ 2017-09-05
    IIF 4 - Director → ME
  • 3
    BRITISH RACING DRIVERS CLUB LIMITED(THE)
    00257980
    Silverstone Circuit, Silverstone, Towcester, Northamptonshire
    Active Corporate (77 parents)
    Officer
    2015-01-01 ~ 2024-10-22
    IIF 3 - Director → ME
  • 4
    SILVERSTONE CIRCUITS LIMITED
    00882843
    Silverstone Circuit, Towcester, Northamptonshire, United Kingdom
    Active Corporate (48 parents, 4 offsprings)
    Officer
    2022-01-25 ~ 2025-11-25
    IIF 1 - Director → ME
  • 5
    SILVERSTONE ESTATES LIMITED
    - now 01013427
    SILVERSTONE LEISURE LIMITED - 1982-06-15
    Silverstone Circuit, Silverstone, Towcester, Northamptonshire
    Active Corporate (46 parents)
    Officer
    2022-09-22 ~ 2025-11-25
    IIF 2 - Director → ME

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.