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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

Handkammer, Harry Martin

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

    Resident in England

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

      IIF 1 IIF 2
  • Handkammer, Harry Martin
    British managing director born in February 1952

    Resident in England

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

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

    Resident in England

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

      IIF 6
child relation
Offspring entities and appointments
Active 2
  • 1
    icon of address Silverstone Circuit, Towcester, Northamptonshire, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 2022-01-25 ~ now
    IIF 3 - Director → ME
  • 2
    SILVERSTONE LEISURE LIMITED - 1982-06-15
    icon of address Silverstone Circuit, Silverstone, Towcester, Northamptonshire
    Active Corporate (4 parents)
    Equity (Company account)
    -5,187,760 GBP2024-12-31
    Officer
    icon of calendar 2022-09-22 ~ now
    IIF 1 - Director → ME
Ceased 3
  • 1
    icon of address Unit 5 Hartlebury Trading Estate, Hartlebury, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    100 GBP2024-08-31
    Officer
    icon of calendar 2016-08-22 ~ 2018-01-15
    IIF 5 - Director → ME
    Person with significant control
    icon of calendar 2016-08-22 ~ 2018-01-15
    IIF 6 - Has significant influence or control OE
    IIF 6 - Right to appoint or remove directors OE
  • 2
    HELIUM MIRACLE 177 LIMITED - 2015-08-17
    icon of address Arundel House 1 Amberley Court, Whitworth Road, Crawley, West Sussex
    Liquidation Corporate (1 parent)
    Total Assets Less Current Liabilities (Company account)
    -167,720 GBP2016-09-30
    Officer
    icon of calendar 2015-08-08 ~ 2017-09-05
    IIF 4 - Director → ME
  • 3
    icon of address Silverstone Circuit, Silverstone, Towcester, Northamptonshire
    Active Corporate (8 parents)
    Officer
    icon of calendar 2015-01-01 ~ 2024-10-22
    IIF 2 - Director → ME

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Contains public sector information retrieved at 16 October 2025 and licensed under the Open Government Licence v3.0.