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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

Silvester, Ian

    Related profiles found in government register
  • Silvester, Ian
    British technical centre manager born in November 1969

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom

      IIF 1
  • Silvester, Ian
    British born in November 1969

    Resident in United States

    Registered addresses and corresponding companies
    • Walmer House, 32 Bath Street, Cheltenham, Gloucestershire, GL50 1YA, England

      IIF 2
child relation
Offspring entities and appointments 2
  • 1
    LANSDOWN LEA MANAGEMENT COMPANY LIMITED
    03153448
    Walmer House, 32 Bath Street, Cheltenham, Gloucestershire
    Active Corporate (18 parents)
    Officer
    2010-03-25 ~ now
    IIF 2 - Director → ME
  • 2
    SCHLUMBERGER OILFIELD UK LIMITED - now
    SCHLUMBERGER OILFIELD UK PLC
    - 2022-01-05 04157867
    SCHLUMBERGER OILFIELD SERVICES UK LIMITED - 2005-01-06
    SCHLUMBERGER INVESTMENTS LIMITED - 2004-11-30
    Minerva, Manor Royal, Crawley, United Kingdom
    Active Corporate (58 parents, 25 offsprings)
    Officer
    2010-07-01 ~ 2013-09-16
    IIF 1 - Director → ME

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