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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

Sill, John Martin

    Related profiles found in government register
  • Sill, John Martin
    British

    Registered addresses and corresponding companies
    • icon of address 19 Sherwood Drive, Skellow, Doncaster, South Yorkshire, DN6 8NY

      IIF 1 IIF 2
  • Sill, John Martin

    Registered addresses and corresponding companies
  • Sill, John Martin
    British engineer born in December 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments
Active 2
  • 1
    OPTIMUM URO SPORT LIMITED - 2001-03-13
    icon of address Optima House, Askern Road, Toll Bar, Doncaster
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2003-08-28 ~ dissolved
    IIF 1 - Secretary → ME
  • 2
    icon of address Optima House, Askern Road, Tollbar, Doncaster, South Yorkshire
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2003-08-28 ~ dissolved
    IIF 2 - Secretary → ME
Ceased 6
  • 1
    icon of address Optima House, Askern Road, Tollbar, Doncaster, South Yorkshire
    Active Corporate (2 parents)
    Equity (Company account)
    4,267,806 GBP2025-05-31
    Officer
    icon of calendar 2003-08-28 ~ 2013-12-31
    IIF 5 - Secretary → ME
  • 2
    WEDGE WIRE SCREENS LIMITED - 2007-06-13
    icon of address Optima House, Askern Road, Toll Bar, Doncaster, South Yorkshire
    Active Corporate (3 parents)
    Equity (Company account)
    3,106,700 GBP2025-05-31
    Officer
    icon of calendar 2003-04-01 ~ 2013-12-31
    IIF 7 - Director → ME
    icon of calendar 2003-08-28 ~ 2005-02-15
    IIF 6 - Secretary → ME
  • 3
    SAMPLING ENGINEERING SYSTEMS LIMITED - 2001-01-11
    icon of address Optima House, Askern Road, Toll Bar, Doncaster, South Yorkshire
    Active Corporate (2 parents)
    Equity (Company account)
    6,000 GBP2025-05-31
    Officer
    icon of calendar ~ 2013-12-31
    IIF 10 - Director → ME
    icon of calendar 2003-06-01 ~ 2013-12-31
    IIF 4 - Secretary → ME
  • 4
    OPTIMUM SYSTEMS LIMITED - 2001-01-11
    icon of address Optima House, Askern Road Toll Bar, Doncaster, South Yorkshire
    Active Corporate (1 parent)
    Equity (Company account)
    100 GBP2025-05-31
    Officer
    icon of calendar 2003-08-28 ~ 2013-12-31
    IIF 3 - Secretary → ME
  • 5
    icon of address Optima House, Askern Road, Toll Bar, Doncaster, South Yorkshire
    Active Corporate (2 parents)
    Equity (Company account)
    311,526 GBP2025-05-31
    Officer
    icon of calendar 2006-08-15 ~ 2013-12-31
    IIF 9 - Director → ME
  • 6
    QUALASTIC INTERNATIONAL LIMITED - 2000-03-01
    OPTIMA INTERNATIONAL LIMITED - 2007-06-13
    QUALASTIC PRODUCTS LIMITED - 1987-09-04
    icon of address Optima House, Askern Road, Toll Bar, Doncaster, South Yorkshire
    Active Corporate (2 parents)
    Equity (Company account)
    1,000 GBP2025-05-31
    Officer
    icon of calendar 2005-02-16 ~ 2013-12-31
    IIF 8 - Director → ME

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