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 4
  • 1
    Garske, Paul Martin
    Company Director born in October 1968
    Individual (47 offsprings)
    Officer
    2016-02-18 ~ now
    OF - Director → CIF 0
  • 2
    Semlitz, Stephen Michael
    Company Director born in February 1953
    Individual (43 offsprings)
    Officer
    2016-02-18 ~ now
    OF - Director → CIF 0
  • 3
    Mason, Stephen John
    Company Director born in September 1964
    Individual (61 offsprings)
    Officer
    2024-07-08 ~ now
    OF - Director → CIF 0
  • 4
    2nd Floor, Cardinal Place, 100, Victoria Street, London, England
    Active Corporate (3 parents, 5 offsprings)
    Person with significant control
    2016-05-06 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
Ceased 2
  • 1
    O'neill, Jonathan Hugh
    Company Director born in March 1957
    Individual (11 offsprings)
    Officer
    2016-02-18 ~ 2024-07-08
    OF - Director → CIF 0
  • 2
    BREAMS REGISTRARS AND NOMINEES LIMITED - 2016-08-17
    BREAMS NOMINEES LIMITED - 1981-12-31
    W.B. TRUSTEES LIMITED - 1976-12-31
    Floor 8, 71, Queen Victoria Street, London, England
    Active Corporate (6 parents, 142 offsprings)
    Equity (Company account)
    1,000 GBP2024-03-31
    Officer
    2016-02-18 ~ 2021-06-30
    PE - Secretary → CIF 0
    PE - Secretary → CIF 0
parent relation
Company in focus

HARTREE SOLUTIONS (UK) LIMITED

Previous name
RYDBERG DEVELOPMENT COMPANY LIMITED - 2021-11-19
Standard Industrial Classification
74909 - Other Professional, Scientific And Technical Activities N.e.c.

Related profiles found in government register
  • HARTREE SOLUTIONS (UK) LIMITED
    Info
    RYDBERG DEVELOPMENT COMPANY LIMITED - 2021-11-19
    Registered number 10013025
    2nd Floor, Cardinal Place, 100 Victoria Street, London SW1E 5JL
    Private Limited Company incorporated on 2016-02-18 (9 years 4 months). The company status is Active.
    The last date of confirmation statement was made at 2024-05-01
    CIF 0
  • HARTREE SOLUTIONS (UK) LIMITED
    S
    Registered number 10013025
    100, Victoria Street, 2nd Floor Cardinal Place, London, England, SW1E 5JL
    Limited Company in Uk Companies House, United Kingdom
    CIF 1 CIF 2
  • HARTREE SOLUTIONS (UK) LIMITED
    S
    Registered number 10013025
    2nd Floor, Cardinal Place, 100 Victoria Street, London, Greater London, United Kingdom, SW1E 5JL
    Private Limited Company in Companies House, England
    CIF 3
child relation
Offspring entities and appointments
Active 6
  • 1
    2nd Floor, Cardinal Place, 100 Victoria Street, London, United Kingdom
    Dissolved Corporate (4 parents)
    Equity (Company account)
    100 GBP2021-12-31
    Person with significant control
    2018-05-10 ~ dissolved
    CIF 3 - Ownership of shares – 75% or moreOE
    CIF 3 - Ownership of voting rights - 75% or moreOE
    CIF 3 - Right to appoint or remove directorsOE
  • 2
    HARTREE SOLUTIONS POWER (HOLDINGS) LIMITED - 2021-09-08
    100 Victoria Street, 2nd Floor Cardinal Place, West Building, London, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    1 GBP2021-12-31
    Person with significant control
    2021-12-22 ~ now
    CIF 1 - Ownership of shares – 75% or moreOE
    CIF 1 - Ownership of voting rights - 75% or moreOE
    CIF 1 - Right to appoint or remove directorsOE
  • 3
    2nd Floor Cardinal Place, 100 Victoria Street, London, England
    Dissolved Corporate (4 parents)
    Person with significant control
    2018-07-19 ~ dissolved
    CIF 6 - Ownership of shares – 75% or moreOE
    CIF 6 - Ownership of voting rights - 75% or moreOE
    CIF 6 - Right to appoint or remove directorsOE
  • 4
    2nd Floor Cardinal Place, Victoria Street, London, England
    Dissolved Corporate (4 parents)
    Person with significant control
    2017-09-22 ~ dissolved
    CIF 4 - Ownership of shares – 75% or moreOE
    CIF 4 - Ownership of voting rights - 75% or moreOE
    CIF 4 - Right to appoint or remove directorsOE
  • 5
    LKAB POWER LIMITED - 2021-09-10
    100 Victoria Street, 2nd Floor Cardinal Place, West Building, London, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    1 GBP2020-12-31
    Person with significant control
    2021-12-22 ~ now
    CIF 2 - Ownership of shares – 75% or moreOE
    CIF 2 - Ownership of voting rights - 75% or moreOE
    CIF 2 - Right to appoint or remove directorsOE
  • 6
    2nd Floor Cardinal Place, Victoria Street, London, England
    Dissolved Corporate (4 parents)
    Person with significant control
    2017-07-10 ~ dissolved
    CIF 5 - Ownership of shares – 75% or moreOE
    CIF 5 - Ownership of voting rights - 75% or moreOE
    CIF 5 - Right to appoint or remove directorsOE
Ceased 2
  • 1
    2nd Floor, Cardinal Place, Victoria Street, London, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    100 GBP2018-12-31
    Person with significant control
    2018-05-10 ~ 2020-01-22
    CIF 7 - Ownership of shares – 75% or more OE
    CIF 7 - Ownership of voting rights - 75% or more OE
    CIF 7 - Right to appoint or remove directors OE
  • 2
    2nd Floor, Cardinal Place, 100 Victoria Street, London, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    100 GBP2018-12-31
    Person with significant control
    2018-05-10 ~ 2020-01-22
    CIF 8 - Ownership of shares – 75% or more OE
    CIF 8 - Ownership of voting rights - 75% or more OE
    CIF 8 - Right to appoint or remove directors OE
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Contains public sector information retrieved at 24 April 2025 and licensed under the Open Government Licence v3.0.