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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

Mr Harry Michael Boyne

    Related profiles found in government register
  • Mr Harry Michael Boyne
    British born in August 1996

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Unit 1 Elstree Gate, Elstree Way, Borehamwood, Hertfordshire, WD6 1JD, England

      IIF 1
    • 73, Cornhill, London, EC3V 3QQ, United Kingdom

      IIF 2
    • Focus House, Ham Road, Shoreham-by-sea, BN43 6PA, England

      IIF 3
  • Boyne, Harry Michael
    British born in August 1996

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 73, Cornhill, London, EC3V 3QQ, United Kingdom

      IIF 4
    • Focus House, Ham Road, Shoreham-by-sea, BN43 6PA, England

      IIF 5 IIF 6
child relation
Offspring entities and appointments 3
  • 1
    BYN PROPERTIES LIMITED
    16765519
    73 Cornhill, London, United Kingdom
    Active Corporate (1 parent)
    Officer
    2025-10-06 ~ now
    IIF 4 - Director → ME
    Person with significant control
    2025-10-06 ~ now
    IIF 2 - Ownership of shares – 75% or more OE
    IIF 2 - Right to appoint or remove directors OE
    IIF 2 - Ownership of voting rights - 75% or more OE
  • 2
    CHALKLINE GROUP LIMITED
    14181804
    Unit 1 Elstree Gate, Elstree Way, Borehamwood, Hertfordshire, United Kingdom
    Active Corporate (8 parents, 1 offspring)
    Officer
    2022-06-20 ~ now
    IIF 5 - Director → ME
    Person with significant control
    2022-06-20 ~ 2025-11-14
    IIF 3 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 3 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 3
    CHALKLINE SOLUTIONS LIMITED
    10404125
    Unit 1 Elstree Gate, Elstree Way, Borehamwood, Hertfordshire, England
    Active Corporate (9 parents)
    Officer
    2016-11-29 ~ now
    IIF 6 - Director → ME
    Person with significant control
    2017-09-30 ~ 2024-11-29
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 1 - Ownership of shares – More than 25% but not more than 50% OE

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