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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 1
  • Leung, Ching Ho Bosco
    Born in January 1991
    Individual (3 offsprings)
    Officer
    icon of calendar 2015-06-26 ~ now
    OF - Director → CIF 0
    Mr Bosco Leung
    Born in January 1991
    Individual (3 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
Ceased 1
  • Lam, Wing Yung
    Director born in March 1991
    Individual
    Officer
    icon of calendar 2017-07-01 ~ 2022-02-01
    OF - Director → CIF 0
parent relation
Company in focus

RATIONUM LIMITED

Standard Industrial Classification
56210 - Event Catering Activities
47190 - Other Retail Sale In Non-specialised Stores
62020 - Information Technology Consultancy Activities
Brief company account
Turnover/Revenue
0 GBP2023-04-01 ~ 2024-03-31
258 GBP2022-04-01 ~ 2023-03-31
Raw materials and consumables used in the production process
0 GBP2023-04-01 ~ 2024-03-31
0 GBP2022-04-01 ~ 2023-03-31
Staff Costs/Employee Benefits Expense
0 GBP2023-04-01 ~ 2024-03-31
0 GBP2022-04-01 ~ 2023-03-31
Expenses related to depreciation, amortization, and impairment of assets
0 GBP2023-04-01 ~ 2024-03-31
0 GBP2022-04-01 ~ 2023-03-31
Tax/Tax Credit on Profit or Loss on Ordinary Activities
84 GBP2023-04-01 ~ 2024-03-31
3,315 GBP2022-04-01 ~ 2023-03-31
Profit/Loss
0 GBP2023-04-01 ~ 2024-03-31
-83 GBP2022-04-01 ~ 2023-03-31
Called-up share capital not yet paid and not classified as a current asset
0 GBP2024-03-31
0 GBP2023-03-31
Fixed Assets
0 GBP2024-03-31
0 GBP2023-03-31
Current Assets
80,955 GBP2024-03-31
84,513 GBP2023-03-31
Creditors
Amounts falling due within one year
-66,386 GBP2024-03-31
-66,403 GBP2023-03-31
Net Current Assets/Liabilities
14,569 GBP2024-03-31
18,110 GBP2023-03-31
Total Assets Less Current Liabilities
14,569 GBP2024-03-31
18,110 GBP2023-03-31
Creditors
Amounts falling due after one year
-38,593 GBP2024-03-31
-42,050 GBP2023-03-31
Net Assets/Liabilities
-24,024 GBP2024-03-31
-23,940 GBP2023-03-31
Equity
-24,024 GBP2024-03-31
-23,940 GBP2023-03-31
Average Number of Employees
12023-04-01 ~ 2024-03-31

Related profiles found in government register
  • RATIONUM LIMITED
    Info
    Registered number 09659770
    icon of address2 Frederick Street, Kings Cross, London WC1X 0ND
    PRIVATE LIMITED COMPANY incorporated on 2015-06-26 (10 years 6 months). The company status is Active.
    The last date of confirmation statement was made at 2024-11-04
    CIF 0
  • RATIONUM LIMITED
    S
    Registered number 09659770
    icon of addressRationum Limited, 2 Frederick Street, Kings Cross, London, United Kingdom, WC1X 0ND
    CIF 1
  • RATIONUM LIMITED
    S
    Registered number 09659770
    icon of addressRationum Limited, 2 Frederick Street, Kings Cross, London, United Kingdom, WC1X 0ND
    Limited Company in Companies House, United Kingdom
    CIF 2 CIF 3
child relation
Offspring entities and appointments
Active 1
  • icon of address2 Frederick Street, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    -8,094.84 GBP2024-02-29
    Officer
    icon of calendar 2023-02-20 ~ now
    CIF 1 - Director → ME
Ceased 3
  • 1
    icon of address2 Frederick Street, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    -8,094.84 GBP2024-02-29
    Person with significant control
    icon of calendar 2023-02-20 ~ 2023-02-28
    CIF 2 - Ownership of voting rights - More than 25% but not more than 50% OE
    CIF 2 - Ownership of shares – More than 25% but not more than 50% OE
  • 2
    icon of address2 Frederick Street, Kings Cross, London, United Kingdom
    Dissolved Corporate (1 parent)
    Person with significant control
    icon of calendar 2021-12-14 ~ 2022-11-11
    CIF 4 - Right to appoint or remove directors OE
    CIF 4 - Ownership of shares – 75% or more OE
    CIF 4 - Ownership of voting rights - 75% or more OE
  • 3
    icon of address2 Frederick Street, Kings Cross, London, United Kingdom
    Dissolved Corporate (2 parents)
    Person with significant control
    icon of calendar 2021-12-17 ~ 2022-11-11
    CIF 3 - Ownership of voting rights - 75% or more OE
    CIF 3 - Ownership of shares – 75% or more OE
    CIF 3 - Right to appoint or remove directors OE

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.