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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 Ian Costello

    Related profiles found in government register
  • Mr Ian Costello
    British born in April 1983

    Resident in England

    Registered addresses and corresponding companies
    • 37, Speedwell Drive, Wirral, CH60 2SY, England

      IIF 1
  • Mr Ian Michal Costello
    British born in April 1983

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 37, Speedwell Drive, Wirral, CH60 2SY, United Kingdom

      IIF 2 IIF 3
  • Costello, Ian Michal
    British born in April 1983

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Liverpool Marina, Coburg Wharf, Liverpool, L3 4BP, United Kingdom

      IIF 4
    • 37, Speedwell Drive, Wirral, CH60 2SY, United Kingdom

      IIF 5
    • 37, Speedwell Drive, Wirral, Merseyside, CH60 2SY, United Kingdom

      IIF 6
  • Costello, Ian Michal
    British training principal born in April 1983

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Mast, Riverbank Road, Bromborough, Wirral, CH62 3JQ, England

      IIF 7
  • Costello, Ian

    Registered addresses and corresponding companies
    • 37, Speedwell Drive, Wirral, Merseyside, CH60 2SY, United Kingdom

      IIF 8
child relation
Offspring entities and appointments 4
  • 1
    HARBOURSIDE MARINE (LIVERPOOL) LTD
    16944130
    Liverpool Marina, Coburg Wharf, Liverpool, United Kingdom
    Active Corporate (4 parents)
    Officer
    2026-01-05 ~ now
    IIF 4 - Director → ME
  • 2
    HARBOURSIDE SEA SCHOOL LTD
    15331984
    Liverpool Marina, Coburg Wharf, Liverpool, Coburg Wharf, Liverpool, England
    Active Corporate (5 parents)
    Officer
    2023-12-06 ~ now
    IIF 6 - Director → ME
    2023-12-06 ~ now
    IIF 8 - Secretary → ME
    Person with significant control
    2023-12-06 ~ now
    IIF 3 - Ownership of shares – More than 25% but not more than 50% OE
  • 3
    IMC MARINE SERVICES LTD
    - now 14717645
    IMC ELECTRICAL SERVICES LTD
    - 2024-05-13 14717645
    37 Speedwell Drive, Wirral, United Kingdom
    Active Corporate (1 parent)
    Officer
    2023-03-08 ~ now
    IIF 5 - Director → ME
    Person with significant control
    2023-03-08 ~ now
    IIF 2 - Ownership of voting rights - 75% or more OE
    IIF 2 - Ownership of shares – 75% or more OE
    IIF 2 - Right to appoint or remove directors OE
  • 4
    MARINE AND SITE TRAINING LTD
    10308261
    Mast Riverbank Road, Bromborough, Wirral, England
    Dissolved Corporate (3 parents)
    Officer
    2019-04-01 ~ dissolved
    IIF 7 - Director → ME
    Person with significant control
    2019-04-01 ~ dissolved
    IIF 1 - Ownership of shares – More than 25% but not more than 50% OE

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Contains public sector information retrieved at 22 April 2026 and licensed under the Open Government Licence v3.0.