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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 Bertrand Philippe Coste

    Related profiles found in government register
  • Mr Bertrand Philippe Coste
    French born in July 1959

    Resident in England

    Registered addresses and corresponding companies
    • icon of address 14-15, Conduit Street, London, W1S 2XJ

      IIF 1 IIF 2
    • icon of address 47, Princes Gardens, London, SW7 2PE, United Kingdom

      IIF 3
  • Coste, Bertrand Philippe
    French director born in July 1959

    Resident in England

    Registered addresses and corresponding companies
    • icon of address Unit H8, Adanac Drive, Nursling, Southampton, SO16 0BT, England

      IIF 4
  • Coste, Bertrand
    French consultant-managing director born in July 1959

    Resident in England

    Registered addresses and corresponding companies
    • icon of address 14-15, Conduit Street, London, W1S 2XJ

      IIF 5
  • Coste, Bertrand
    born in July 1959

    Resident in England

    Registered addresses and corresponding companies
    • icon of address 14-15, Conduit Street, London, W1S 2XJ

      IIF 6
child relation
Offspring entities and appointments
Active 4
  • 1
    OCEAN QUAY POWER SYSTEMS LIMITED - 2004-06-11
    icon of address Unit H8 Adanac Drive, Nursling, Southampton, England
    Active Corporate (6 parents, 1 offspring)
    Equity (Company account)
    2,683,437 GBP2024-12-31
    Officer
    icon of calendar 2021-02-24 ~ now
    IIF 4 - Director → ME
  • 2
    icon of address 14-15 Conduit Street, London
    Active Corporate (6 parents)
    Equity (Company account)
    899,961 GBP2023-12-31
    Officer
    icon of calendar 2008-02-05 ~ now
    IIF 6 - LLP Designated Member → ME
    Person with significant control
    icon of calendar 2017-01-01 ~ now
    IIF 2 - Has significant influence or control as a member of a firmOE
    IIF 2 - Has significant influence or control over the trustees of a trustOE
    IIF 2 - Has significant influence or controlOE
  • 3
    icon of address 110 New Cavendish Street, London, England
    Active Corporate (2 parents)
    Equity (Company account)
    -96,912 GBP2021-04-30
    Person with significant control
    icon of calendar 2019-07-04 ~ now
    IIF 3 - Ownership of voting rights - More than 25% but not more than 50%OE
    IIF 3 - Ownership of shares – More than 25% but not more than 50%OE
  • 4
    icon of address 14-15 Conduit Street, London
    Active Corporate (1 parent, 1 offspring)
    Equity (Company account)
    283,413 GBP2024-03-31
    Officer
    icon of calendar 1994-07-13 ~ now
    IIF 5 - Director → ME
    Person with significant control
    icon of calendar 2016-07-01 ~ now
    IIF 1 - Ownership of shares – 75% or moreOE

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