logo
explain how to read the page

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 6
  • 1
    Holt, Joanna Alexandra
    Born in June 1977
    Individual (2 offsprings)
    Officer
    2024-07-04 ~ now
    OF - Director → CIF 0
  • 2
    Van Der Hoek, Jeroen Eduard
    Born in November 1973
    Individual (2 offsprings)
    Officer
    2024-07-04 ~ now
    OF - Director → CIF 0
  • 3
    Hasan, Talal
    Born in October 1981
    Individual (3 offsprings)
    Officer
    2020-06-29 ~ now
    OF - Director → CIF 0
    Mr Talal Hasan
    Born in October 1981
    Individual (3 offsprings)
    Person with significant control
    2020-06-29 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
  • 4
    Karapataki, Christina
    Born in March 1987
    Individual (1 offspring)
    Officer
    2024-01-31 ~ now
    OF - Director → CIF 0
  • 5
    Khimji, Karan
    Individual (1 offspring)
    Officer
    2024-07-01 ~ now
    OF - Secretary → CIF 0
  • 6
    Schwartzmann, Aurelie Marcelle Germain
    Born in April 1985
    Individual (1 offspring)
    Officer
    2025-10-01 ~ now
    OF - Director → CIF 0
Ceased 7
  • 1
    Karapataki, Christina
    Investor born in March 1987
    Individual (1 offspring)
    Officer
    2022-01-06 ~ 2022-02-14
    OF - Director → CIF 0
  • 2
    Buhofer, Heinz
    Company Director born in November 1956
    Individual
    Officer
    2020-07-31 ~ 2024-07-04
    OF - Director → CIF 0
  • 3
    Hartney, Mark
    Director born in August 1960
    Individual (1 offspring)
    Officer
    2021-06-25 ~ 2024-01-31
    OF - Director → CIF 0
  • 4
    Altman, Max
    Investor born in June 1987
    Individual
    Officer
    2021-09-26 ~ 2024-07-04
    OF - Director → CIF 0
  • 5
    Chehih, Ghaouti
    Chairman born in February 1971
    Individual
    Officer
    2020-07-31 ~ 2024-07-04
    OF - Director → CIF 0
  • 6
    Leung, Jade
    Director born in December 1993
    Individual
    Officer
    2021-06-25 ~ 2021-09-26
    OF - Director → CIF 0
  • 7
    Fleming, Greg
    Company Director born in May 1961
    Individual
    Officer
    2024-07-04 ~ 2025-10-01
    OF - Director → CIF 0
parent relation
Company in focus

PROTOSTAR GROUP LIMITED

Standard Industrial Classification
72190 - Other Research And Experimental Development On Natural Sciences And Engineering
Brief company account
Average Number of Employees
92024-01-01 ~ 2024-12-31
72023-01-01 ~ 2023-12-31
Property, Plant & Equipment
5,670 GBP2024-12-31
1,166 GBP2023-12-31
Fixed Assets - Investments
221,975 GBP2024-12-31
214,809 GBP2023-12-31
Fixed Assets
227,645 GBP2024-12-31
215,975 GBP2023-12-31
Debtors
Current
8,490,128 GBP2024-12-31
5,825,683 GBP2023-12-31
Cash at bank and in hand
13,181,707 GBP2024-12-31
2,850,263 GBP2023-12-31
Current Assets
21,671,835 GBP2024-12-31
8,675,946 GBP2023-12-31
Creditors
Current, Amounts falling due within one year
-387,371 GBP2024-12-31
-9,595,404 GBP2023-12-31
Net Current Assets/Liabilities
21,289,899 GBP2024-12-31
-918,555 GBP2023-12-31
Total Assets Less Current Liabilities
21,517,544 GBP2024-12-31
-702,580 GBP2023-12-31
Net Assets/Liabilities
21,497,896 GBP2024-12-31
-1,407,168 GBP2023-12-31
Property, Plant & Equipment - Depreciation Expense
1,186 GBP2024-01-01 ~ 2024-12-31
282 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment - Gross Cost
Tools/Equipment for furniture and fittings
7,139 GBP2024-12-31
1,449 GBP2023-12-31
Property, Plant & Equipment - Gross Cost
7,139 GBP2024-12-31
1,449 GBP2023-12-31
Property, Plant & Equipment - Disposals
Tools/Equipment for furniture and fittings
-242 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment - Disposals
-242 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Tools/Equipment for furniture and fittings
1,469 GBP2024-12-31
282 GBP2023-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
1,469 GBP2024-12-31
282 GBP2023-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
Tools/Equipment for furniture and fittings
1,315 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
1,315 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment - Decrease in depreciation and impairment related to disposals
Tools/Equipment for furniture and fittings
-128 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment - Decrease in depreciation and impairment related to disposals
-128 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment
Tools/Equipment for furniture and fittings
5,670 GBP2024-12-31
1,166 GBP2023-12-31

  • PROTOSTAR GROUP LIMITED
    Info
    Registered number 12704901
    Sustainable Workspaces, County Hall, 5th Floor The Riverside Building, Belvedere Road, London SE1 7PB
    PRIVATE LIMITED COMPANY incorporated on 2020-06-29 (5 years 8 months). The company status is Active.
    The last date of confirmation statement was made at 2025-03-09
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.

The content of this website is protected by AgonGuard.

© 2022- Polylogarithmic Technology Ltd (Registered in England and Wales No. 14256313). All rights reserved.

Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.