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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 2
  • 1
    Curtin, Amanda Louise
    Born in March 1968
    Individual (1 offspring)
    Officer
    icon of calendar 1991-10-15 ~ now
    OF - Director → CIF 0
    Curtin, Amanda Louise
    Commercial Director
    Individual (1 offspring)
    Officer
    icon of calendar 1996-10-09 ~ now
    OF - Secretary → CIF 0
    Mrs Amanda Louise Curtin
    Born in March 1968
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-04-06 ~ 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
    Curtin, Adam Daniel
    Born in January 1966
    Individual (2 offsprings)
    Officer
    icon of calendar 1991-10-15 ~ now
    OF - Director → CIF 0
    Mr Adam Daniel Curtin
    Born in January 1966
    Individual (2 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of voting rights - More than 50% but less than 75%CIF 0
    PE - Ownership of shares – More than 50% but less than 75%CIF 0
Ceased 3
  • 1
    Ross, Sheila Margaret
    Non - Executive born in March 1957
    Individual
    Officer
    icon of calendar 1991-10-15 ~ 1996-10-09
    OF - Director → CIF 0
  • 2
    Heley, Michael John
    Managing Director born in May 1958
    Individual
    Officer
    icon of calendar 1991-10-15 ~ 1996-10-09
    OF - Director → CIF 0
    Heley, Michael John
    Individual
    Officer
    icon of calendar 1991-10-15 ~ 1996-10-09
    OF - Secretary → CIF 0
  • 3
    icon of address2nd Floor, 83 Clerkenwell Road, London
    Corporate (1 offspring)
    Officer
    1991-10-15 ~ 1991-10-15
    PE - Nominee Secretary → CIF 0
parent relation
Company in focus

YELLOWDUCK LIMITED

Previous name
INTERFACE ENGINEERING SOFTWARE LIMITED - 2000-12-27
Standard Industrial Classification
62020 - Information Technology Consultancy Activities
62012 - Business And Domestic Software Development
Brief company account
Fixed Assets
4,774.11 GBP2024-09-30
5,299 GBP2023-09-30
Current Assets
19,168.17 GBP2024-09-30
41,908 GBP2023-09-30
Creditors
Current
-16,349.62 GBP2024-09-30
-20,297 GBP2023-09-30
Net Current Assets/Liabilities
2,818.55 GBP2024-09-30
21,611 GBP2023-09-30
Total Assets Less Current Liabilities
7,592.66 GBP2024-09-30
26,910 GBP2023-09-30
Net Assets/Liabilities
7,592.66 GBP2024-09-30
26,910 GBP2023-09-30
Equity
7,592.66 GBP2024-09-30
26,910 GBP2023-09-30
Average Number of Employees
22023-10-01 ~ 2024-09-30
22022-10-01 ~ 2023-09-30

  • YELLOWDUCK LIMITED
    Info
    INTERFACE ENGINEERING SOFTWARE LIMITED - 2000-12-27
    Registered number 02654377
    icon of address16 Plum Tree Road, Lower Stondon, Henlow, Bedfordshire SG16 6NE
    PRIVATE LIMITED COMPANY incorporated on 1991-10-15 (34 years 2 months). The company status is Active.
    The last date of confirmation statement was made at 2024-10-09
    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 12 November 2025 and licensed under the Open Government Licence v3.0.