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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

Kastner, Steffen Kurt Hermann Jochen

    Related profiles found in government register
  • Kastner, Steffen Kurt Hermann Jochen
    German director born in May 1964

    Resident in England

    Registered addresses and corresponding companies
    • icon of address 55, Baker Street, London, W1U 7EU, United Kingdom

      IIF 1
  • Kastner, Steffen Kurt Hermann Jochen
    German born in May 1964

    Resident in Italy

    Registered addresses and corresponding companies
    • icon of address C/o Farrow Accounting & Tax Limited, Unit T13, Tideway Yard, 125 Mortlake High Street, London, SW14 8SN, United Kingdom

      IIF 2
  • Steffen Kurt Hermann Jochen Kastner
    German born in May 1964

    Resident in Italy

    Registered addresses and corresponding companies
    • icon of address C/o Farrow Accounting & Tax Limited, Unit T13, Tideway Yard, 125 Mortlake High Street, London, SW14 8SN, United Kingdom

      IIF 3
  • Kastner, Steffen
    German born in May 1964

    Resident in Italy

    Registered addresses and corresponding companies
    • icon of address Innovation Campus, 33 Greenhill, Blackwell, Bromsgrove, B60 1BL, United Kingdom

      IIF 4
    • icon of address Innovation Campus, 33 Greenhill, Blackwell, Bromsgrove, Worcestershire, B60 1BL, United Kingdom

      IIF 5
  • Kastner, Steffen, Dr.
    German investor and consultant born in May 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Edinburgh House, 170 Kennington Lane, Lambeth, London, SE11 5DP, England

      IIF 6
  • Dr. Steffen Kastner
    German born in May 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Edinburgh House, 170 Kennington Lane, Lambeth, London, SE11 5DP, England

      IIF 7
child relation
Offspring entities and appointments
Active 3
  • 1
    icon of address C/o Farrow Accounting & Tax Limited Unit T13, Tideway Yard, 125 Mortlake High Street, London, United Kingdom
    Active Corporate (1 parent)
    Equity (Company account)
    73,084 GBP2024-02-29
    Officer
    icon of calendar 2017-02-28 ~ now
    IIF 2 - Director → ME
    Person with significant control
    icon of calendar 2017-02-28 ~ now
    IIF 3 - Ownership of shares – 75% or moreOE
    IIF 3 - Ownership of voting rights - 75% or moreOE
    IIF 3 - Right to appoint or remove directors as a member of a firmOE
  • 2
    OPTIMUMFX LIMITED - 2023-09-28
    icon of address Innovation Campus, 33 Greenhill, Blackwell, Bromsgrove, United Kingdom
    Active Corporate (6 parents, 2 offsprings)
    Profit/Loss (Company account)
    -23,830 GBP2024-01-01 ~ 2024-12-31
    Officer
    icon of calendar 2023-11-14 ~ now
    IIF 4 - Director → ME
  • 3
    icon of address Innovation Campus 33 Greenhill, Blackwell, Bromsgrove, Worcestershire, United Kingdom
    Active Corporate (6 parents)
    Equity (Company account)
    1,972,903 GBP2024-12-31
    Officer
    icon of calendar 2023-11-14 ~ now
    IIF 5 - Director → ME
Ceased 2
  • 1
    SNOOZEAL LIMITED - 2019-05-20
    icon of address 7th Floor 107 Leadenhall Street, London, United Kingdom
    Active Corporate (8 parents)
    Equity (Company account)
    8,909,038 GBP2021-03-31
    Officer
    icon of calendar 2019-05-10 ~ 2023-04-14
    IIF 1 - Director → ME
  • 2
    icon of address Tintagel House, 92 Albert Embankment, London, England
    Active Corporate (6 parents)
    Profit/Loss (Company account)
    -887,907 GBP2024-01-01 ~ 2024-12-31
    Officer
    icon of calendar 2019-01-18 ~ 2019-02-01
    IIF 6 - Director → ME
    Person with significant control
    icon of calendar 2019-01-18 ~ 2019-02-01
    IIF 7 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 7 - Ownership of voting rights - More than 25% but not more than 50% OE

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.