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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.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Mastalerz Jnr, John A

    Related profiles found in government register
  • Mastalerz Jnr, John A
    American born in December 1966

    Resident in United States

    Registered addresses and corresponding companies
    • Howard House, Graycar Business Park, Barton Under Needwood, Staffordshire, DE13 8EN

      IIF 1 IIF 2
    • Doncaster Works, Hexthorpe Road, Doncaster, South Yorkshire, DN4 0BF, United Kingdom

      IIF 3
  • Mastalerz Jnr, John A
    American financial controller born in December 1966

    Resident in United States

    Registered addresses and corresponding companies
    • 156, Great Charles Street, Queensway, Birmingham, West Midlands, B3 3HN

      IIF 4
child relation
Offspring entities and appointments 4
  • 1
    WABTEC UK HOLDINGS LIMITED
    07597863
    Howard House, Graycar Business Park, Barton Under Needwood, Staffordshire
    Active Corporate (11 parents, 1 offspring)
    Officer
    2018-03-23 ~ now
    IIF 1 - Director → ME
  • 2
    WABTEC UK INVESTMENTS LIMITED
    07832134
    Howard House, Graycar Business Park, Barton Under Needwood, Staffordshire
    Active Corporate (10 parents)
    Officer
    2018-03-23 ~ now
    IIF 2 - Director → ME
  • 3
    WABTEC UK LIMITED
    - now 02923485
    WABTEC RAIL LIMITED
    - 2021-11-30 02923485
    RFS (E) LIMITED - 2000-03-01
    IMCO (0394) LIMITED - 1994-11-09
    Doncaster Works, Hexthorpe Road, Doncaster, South Yorkshire, United Kingdom
    Active Corporate (36 parents, 1 offspring)
    Officer
    2019-09-01 ~ now
    IIF 3 - Director → ME
  • 4
    WABTEC UK MANUFACTURING LIMITED
    10437349
    156 Great Charles Street, Queensway, Birmingham, West Midlands
    Dissolved Corporate (10 parents)
    Officer
    2019-09-01 ~ dissolved
    IIF 4 - Director → ME

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