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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals 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
Inapplicable
parent relation
Individuals in focus

Heath, Mary Joanne Chun

child relation
Offspring entities and appointments
Active 12
  • 1
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (10 parents)
    Officer
    2018-03-09 ~ now
    IIF 2 - Secretary → ME
  • 2
    BOMBARDIER TRANSPORTATION (INVESTMENT) UK LIMITED - 2022-12-05
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (5 parents, 1 offspring)
    Officer
    2021-05-06 ~ now
    IIF 9 - Secretary → ME
  • 3
    ALSTOM TRANSPORT - 2017-04-18
    GEC ALSTHOM METRO-CAMMELL LIMITED - 1998-06-22
    METROPOLITAN CAMMELL LIMITED - 1993-06-28
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (4 parents)
    Officer
    2018-03-01 ~ now
    IIF 12 - Secretary → ME
  • 4
    GEC ALSTHOM NL SERVICE PROVISION LIMITED - 1998-06-22
    GEC ALSTHOM NORTHERN LINE SERVICE PROVISION LIMITED - 1995-01-13
    GEC ALSTHOM TRAIN LEASING LIMITED - 1994-09-15
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (4 parents)
    Officer
    2018-04-25 ~ now
    IIF 5 - Secretary → ME
  • 5
    SIGNALLING SOLUTIONS LIMITED - 2020-02-28
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (4 parents)
    Officer
    2018-04-19 ~ now
    IIF 8 - Secretary → ME
  • 6
    ALSTOM TRAIN SERVICES LTD - 2000-10-20
    GEC ALSTHOM RAILWAY MAINTENANCE SERVICES LIMITED - 1998-06-22
    GEC ALSTHOM TRAIN MAINTENANCE LIMITED - 1994-06-01
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (4 parents)
    Officer
    2018-04-19 ~ now
    IIF 3 - Secretary → ME
  • 7
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (5 parents, 11 offsprings)
    Officer
    2018-03-01 ~ now
    IIF 10 - Secretary → ME
  • 8
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (10 parents)
    Officer
    2018-02-26 ~ now
    IIF 7 - Secretary → ME
  • 9
    BOMBARDIER TRANSPORTATION (GLOBAL HOLDING) UK LIMITED - 2022-12-05
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (5 parents, 2 offsprings)
    Officer
    2021-03-17 ~ now
    IIF 11 - Secretary → ME
  • 10
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (5 parents, 5 offsprings)
    Officer
    2021-05-28 ~ now
    IIF 1 - Secretary → ME
  • 11
    BANDROUND LIMITED - 1998-11-23
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (4 parents)
    Officer
    2021-04-27 ~ now
    IIF 6 - Secretary → ME
  • 12
    BANDNAIL LIMITED - 1998-09-17
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (6 parents)
    Officer
    2021-04-27 ~ now
    IIF 4 - Secretary → ME

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