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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 11
  • 1
    Lee, Kwansoo
    Director born in March 1984
    Individual (10 offsprings)
    Officer
    2018-03-26 ~ 2019-11-25
    OF - Director → CIF 0
  • 2
    Ihara, Hiromasa
    Ceo born in March 1972
    Individual (13 offsprings)
    Officer
    2016-11-01 ~ 2018-03-26
    OF - Director → CIF 0
  • 3
    Beswetherick, Elizabeth Jo
    Born in January 1988
    Individual (38 offsprings)
    Officer
    2019-08-20 ~ now
    OF - Director → CIF 0
  • 4
    Thornton, Gary
    Born in December 1965
    Individual (29 offsprings)
    Officer
    2016-11-01 ~ now
    OF - Director → CIF 0
  • 5
    Deng, Yandie
    Born in July 1990
    Individual (18 offsprings)
    Officer
    2025-07-30 ~ now
    OF - Director → CIF 0
  • 6
    Pitts, Matthew John
    Commercial Director born in August 1970
    Individual (25 offsprings)
    Officer
    2019-11-25 ~ 2025-07-30
    OF - Director → CIF 0
  • 7
    Foot, David Alexander John, Mr.
    Director born in March 1968
    Individual (68 offsprings)
    Officer
    2019-08-20 ~ 2022-05-06
    OF - Director → CIF 0
  • 8
    Shimizu, Satoshi
    Commercial Director born in October 1981
    Individual (20 offsprings)
    Officer
    2016-11-01 ~ 2017-06-30
    OF - Director → CIF 0
  • 9
    Umemura, Yasushi
    Director born in October 1974
    Individual (33 offsprings)
    Officer
    2018-03-26 ~ 2019-08-20
    OF - Director → CIF 0
  • 10
    Heath, James Christopher
    Born in December 1975
    Individual (111 offsprings)
    Officer
    2022-05-06 ~ now
    OF - Director → CIF 0
  • 11
    DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED
    10454309 10121746... (more)
    Mid City Place, 71 High Holborn, London, United Kingdom
    Active Corporate (13 parents, 1 offspring)
    Person with significant control
    2016-11-01 ~ now
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
parent relation
Company in focus

DIAMOND TRANSMISSION PARTNERS RB LIMITED

Period: 2016-11-01 ~ now
Company number: 10457056
Registered name
DIAMOND TRANSMISSION PARTNERS RB LIMITED - now 10122057... (more)
Standard Industrial Classification
35120 - Transmission Of Electricity

  • DIAMOND TRANSMISSION PARTNERS RB LIMITED
    Info
    Registered number 10457056
    71 Kingsway, London WC2B 6ST
    PRIVATE LIMITED COMPANY incorporated on 2016-11-01 (9 years 4 months). The company status is Active.
    The last date of confirmation statement was made at 2025-10-31
    CIF 0
child relation
Offspring entities and appointments 0
  • Not found in our database.

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.