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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

Walker, Stephen Charles Alexander, Dr

    Related profiles found in government register
  • Walker, Stephen Charles Alexander, Dr
    British chartered engineer born in March 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Walker, Stephen Charles Alexander, Dr
    British engineer born in March 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 12 Wayland Close, Bradfield, Reading, Berkshire, RG7 6AG

      IIF 7 IIF 8
  • Walker, Stephen Charles Alexander, Dr
    British engineering director born in March 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 12 Wayland Close, Bradfield, Reading, Berkshire, RG7 6AG

      IIF 9 IIF 10
  • Walker, Stephen Charles Alexander
    British engineering director born in March 1958

    Registered addresses and corresponding companies
    • icon of address 19 Magnus Drive, Hatch Warren, Basingstoke, Hampshire, RG22 4TX

      IIF 11
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 10
  • 1
    SIMON-HARTLEY CAMBI LIMITED - 2002-12-23
    GAC NO. 135 LIMITED - 1998-12-30
    icon of address Congleton Technology Park Radnor Park Ind. Est., First Avenue, Back Lane, Congleton, Cheshire, United Kingdom
    Active Corporate (2 parents)
    Officer
    icon of calendar 1999-01-27 ~ 2002-09-24
    IIF 8 - Director → ME
  • 2
    icon of address 10 Wayland Close, Bradfield, Reading, England
    Active Corporate (3 parents)
    Equity (Company account)
    29,503 GBP2024-12-31
    Officer
    icon of calendar 1999-01-13 ~ 2000-10-12
    IIF 7 - Director → ME
  • 3
    PCI MEMBRANE SYSTEMS LIMITED - 1998-09-30
    THAMES WATER PRODUCTS LIMITED - 1998-09-30
    THAMES WATER PRODUCTS LIMITED - 1998-09-28
    THAMES WATER PRODUCTS AND SERVICES LIMITED - 1997-07-17
    PWT WORLDWIDE LIMITED - 1994-03-28
    PORTALS WATER TREATMENT LIMITED - 1990-01-31
    LAVERSTOKE INVESTMENT TRUST LIMITED - 1978-12-31
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Dissolved Corporate (3 parents, 4 offsprings)
    Officer
    icon of calendar 1999-08-11 ~ 2000-01-01
    IIF 2 - Director → ME
  • 4
    STIRLING WATER SERVICES LIMITED - 1995-12-07
    SOUTH BUCKS EFFLUENT (PLANT SERVICES) LIMITED - 1995-11-29
    icon of address 6 Snow Hill, London, England
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 1997-05-22 ~ 1999-03-26
    IIF 10 - Director → ME
  • 5
    THAMES WATER (PWT) PENSION TRUSTEES LIMITED - 1994-08-18
    TRUSHELFCO (NO. 1559) LIMITED - 1990-03-26
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2007-04-18 ~ 2009-04-10
    IIF 1 - Director → ME
  • 6
    TRUSHELFCO (NO.1225) LIMITED - 1988-05-09
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Active Corporate (6 parents)
    Officer
    icon of calendar 2007-04-18 ~ 2015-02-28
    IIF 6 - Director → ME
  • 7
    PCI MEMBRANE SYSTEMS LIMITED - 1998-09-30
    THAMES WATER PRODUCTS LIMITED - 1998-09-30
    P.C.I. MEMBRANE SYSTEMS LIMITED - 1998-09-28
    FINEPRIVATE LIMITED - 1988-09-01
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Active Corporate (3 parents, 4 offsprings)
    Officer
    icon of calendar 1998-09-03 ~ 2000-01-01
    IIF 9 - Director → ME
  • 8
    SIMON-HARTLEY LIMITED - 2001-11-12
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Dissolved Corporate (3 parents, 2 offsprings)
    Officer
    icon of calendar 1999-08-11 ~ 2000-01-01
    IIF 5 - Director → ME
  • 9
    TRUSHELFCO (NO. 1579) LIMITED - 1990-04-05
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Active Corporate (3 parents)
    Equity (Company account)
    2 GBP2024-09-30
    Officer
    icon of calendar 2007-12-10 ~ 2009-04-10
    IIF 4 - Director → ME
  • 10
    icon of address Clearwater Court, Vastern Road, Reading, Berkshire
    Active Corporate (14 parents, 2 offsprings)
    Officer
    icon of calendar 2001-09-20 ~ 2006-12-01
    IIF 3 - Director → ME
    icon of calendar 1994-12-06 ~ 1997-03-31
    IIF 11 - Director → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.