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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company 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
Active 3
  • 1
    Blanckenburg, Hans Jurgen
    Property Developer born in July 1945
    Individual (3 offsprings)
    Officer
    icon of calendar 2010-03-16 ~ now
    OF - Director → CIF 0
    Mr Hans Jurgen Blanckenburg
    Born in July 1945
    Individual (3 offsprings)
    Person with significant control
    icon of calendar 2017-03-15 ~ now
    PE - Ownership of voting rights - More than 25% but not more than 50%CIF 0
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
  • 2
    Highet, Catherine
    Rgn / Retired born in September 1944
    Individual (1 offspring)
    Officer
    icon of calendar 2010-03-16 ~ now
    OF - Director → CIF 0
  • 3
    Blanckenburg, Karen Gillian
    Individual (88022 offsprings)
    Officer
    icon of calendar 2024-09-05 ~ now
    OF - Secretary → CIF 0
Ceased 1
  • Highet, Catherine
    Individual (1 offspring)
    Officer
    icon of calendar 2010-03-16 ~ 2025-07-16
    OF - Secretary → CIF 0
parent relation
Company in focus

89 CASTELNAU RTM COMPANY LTD

Standard Industrial Classification
68320 - Management Of Real Estate On A Fee Or Contract Basis
Brief company account
Property, Plant & Equipment
4 GBP2023-09-30
4 GBP2022-09-30
Total Assets Less Current Liabilities
4 GBP2023-09-30
4 GBP2022-09-30
Creditors
Non-current
4 GBP2023-09-30
4 GBP2022-09-30
Average Number of Employees
12022-10-01 ~ 2023-09-30
12021-10-01 ~ 2022-09-30
Property, Plant & Equipment - Gross Cost
Land and buildings
4 GBP2022-09-30
Property, Plant & Equipment
Land and buildings
4 GBP2023-09-30
4 GBP2022-09-30
Other Creditors
Non-current
4 GBP2023-09-30
4 GBP2022-09-30

  • 89 CASTELNAU RTM COMPANY LTD
    Info
    Registered number 07190205
    icon of addressBray Lawn, Fishery Road, Maidenhead, Berkshire SL6 1UP
    Private Company Limited By Guarantee Without Share Capital incorporated on 2010-03-16 (15 years 7 months). The company status is Active.
    The last date of confirmation statement was made at 2025-02-28
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.

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Contains public sector information retrieved at 26 August 2025 and licensed under the Open Government Licence v3.0.