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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

Mr Antonio Castagna

    Related profiles found in government register
  • Mr Antonio Castagna
    British born in December 1957

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 145, Sumatra Road, Ground Floor Flat, London, NW6 1PN, England

      IIF 1
  • Mr Antonio Castagna
    Italian born in September 1971

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 3rd Floor, 120 Baker Street, London, England

      IIF 2
  • Mr Antonio Castagna
    Italian born in September 1971

    Resident in England

    Registered addresses and corresponding companies
    • 120, Baker Street, London, W1U 6TU, England

      IIF 3
  • Castagna, Antonio
    British businessman born in December 1957

    Resident in London

    Registered addresses and corresponding companies
    • Ground Floor Flat, 145 Sumatra Road, London, NW6 1PN, United Kingdom

      IIF 4
  • Castagna, Antonio
    Italian born in September 1971

    Resident in England

    Registered addresses and corresponding companies
    • Unit 3, Office A, 1st Floor, 6-7 St. Mary At Hill, London, EC3R 8EE, England

      IIF 5 IIF 6
child relation
Offspring entities and appointments
Active 2
  • 1
    IASON CONSULTING LTD
    10686885
    Unit 3, Office A, 1st Floor, 6-7 St. Mary At Hill, London, England
    Active Corporate (4 parents)
    Officer
    2017-03-23 ~ now
    IIF 6 - Director → ME
  • 2
    ZEROKM FINANCE LTD.
    10911728
    Unit 3, Office A, 1st Floor, 6-7 St. Mary At Hill, London, England
    Active Corporate (4 parents)
    Equity (Company account)
    140,949 GBP2024-12-31
    Officer
    2017-08-11 ~ now
    IIF 5 - Director → ME
Ceased 3
  • 1
    145 SUMATRA ROAD LIMITED
    07176318 09505980
    22b Weston Park Road, Plymouth, England
    Active Corporate (5 parents)
    Equity (Company account)
    4 GBP2025-03-31
    Officer
    2010-03-03 ~ 2019-09-02
    IIF 4 - Director → ME
    Person with significant control
    2017-03-03 ~ 2021-03-01
    IIF 1 - Ownership of shares – 75% or more OE
  • 2
    IASON CONSULTING LTD
    10686885
    Unit 3, Office A, 1st Floor, 6-7 St. Mary At Hill, London, England
    Active Corporate (4 parents)
    Person with significant control
    2017-03-23 ~ 2019-11-15
    IIF 2 - Ownership of shares – 75% or more OE
  • 3
    ZEROKM FINANCE LTD.
    10911728
    Unit 3, Office A, 1st Floor, 6-7 St. Mary At Hill, London, England
    Active Corporate (4 parents)
    Equity (Company account)
    140,949 GBP2024-12-31
    Person with significant control
    2017-08-11 ~ 2019-11-15
    IIF 3 - Ownership of shares – 75% or more OE

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