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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

Kostelec, Mariano Alejandro

    Related profiles found in government register
  • Kostelec, Mariano Alejandro
    Slovenian born in July 1988

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 28, Tudor Street, London, EC4Y 0AY, England

      IIF 1
  • Kostelec, Mariano Alejandro
    Slovenian company director born in July 1988

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Uniplaces, 22 Upper Ground, London, Greater London, SE1 9PD

      IIF 2
  • Kostelec, Mariano Alejandro
    Slovenian born in July 1988

    Resident in Cyprus

    Registered addresses and corresponding companies
    • Ha Potami, 437, Melinas Merkuri 2, Paphos, 8510, Cyprus

      IIF 3
  • Kostelec, Mariano
    Slovenian born in July 1988

    Resident in Cyprus

    Registered addresses and corresponding companies
    • 173, Balaam Street, London, Greater London, E13 8AA, England

      IIF 4
  • Mr Mariano Kostelec
    Slovenian born in July 1988

    Resident in Portugal

    Registered addresses and corresponding companies
    • 71-75, Shelton Street, London, WC2H 9JQ, United Kingdom

      IIF 5
  • Mr Mariano Alejandro Kostelec
    Slovenian born in July 1988

    Resident in Cyprus

    Registered addresses and corresponding companies
    • 173, Balaam Street, London, Greater London, E13 8AA, England

      IIF 6
    • 71, - 75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom

      IIF 7
child relation
Offspring entities and appointments
Active 4
  • 1
    STUDENTFINANCE ISA LTD - 2022-03-01
    71-75 Shelton Street, Covent Garden, London, England
    Active Corporate (4 parents)
    Equity (Company account)
    -199,931 GBP2024-12-31
    Officer
    2020-08-04 ~ now
    IIF 4 - Director → ME
  • 2
    UNIPLACES LTD - 2013-09-17 08674633
    Uniplaces, 22 Upper Ground, London, Greater London
    Dissolved Corporate (4 parents)
    Officer
    2013-08-21 ~ dissolved
    IIF 2 - Director → ME
  • 3
    71 - 75 Shelton Street, Covent Garden, London, United Kingdom
    Active Corporate (7 parents, 1 offspring)
    Equity (Company account)
    4,014,656 GBP2024-12-31
    Officer
    2021-04-09 ~ now
    IIF 3 - Director → ME
    Person with significant control
    2021-04-10 ~ now
    IIF 6 - Has significant influence or controlOE
  • 4
    PIMCO 2936 LIMITED - 2013-09-17 05766628, 08385007, 06073696... (more)
    C/o Irwin Mitchell Llp, 28 Tudor Street, London, United Kingdom
    Active Corporate (6 parents)
    Officer
    2013-09-03 ~ now
    IIF 1 - Director → ME
Ceased 2
  • 1
    STUDENTFINANCE ISA LTD - 2022-03-01
    71-75 Shelton Street, Covent Garden, London, England
    Active Corporate (4 parents)
    Equity (Company account)
    -199,931 GBP2024-12-31
    Person with significant control
    2020-08-04 ~ 2021-07-09
    IIF 5 - Right to appoint or remove directors OE
    IIF 5 - Ownership of shares – 75% or more OE
    IIF 5 - Ownership of voting rights - 75% or more OE
  • 2
    71 - 75 Shelton Street, Covent Garden, London, United Kingdom
    Active Corporate (7 parents, 1 offspring)
    Equity (Company account)
    4,014,656 GBP2024-12-31
    Person with significant control
    2021-04-09 ~ 2021-04-24
    IIF 7 - Ownership of voting rights - 75% or more OE
    IIF 7 - 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.