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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

Sperry, William

    Related profiles found in government register
  • Sperry, William
    British born in April 1938

    Registered addresses and corresponding companies
    • Windlestone Bray Road, Bray, Maidenhead, Berkshire, SL6 1UQ

      IIF 1
  • Sperry, William
    British civil engineer born in April 1938

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments 8
  • 1
    COSTAIN BUILDING & CIVIL ENGINEERING LIMITED
    - now 01054232
    COSTAIN U.K. LIMITED
    - 1991-09-01 01054232
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (33 parents, 5 offsprings)
    Officer
    ~ 1998-04-30
    IIF 3 - Director → ME
  • 2
    COSTAIN CONSTRUCTION LIMITED
    00563270
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (31 parents)
    Officer
    ~ 1995-01-01
    IIF 1 - Director → ME
  • 3
    COSTAIN ENGINEERING & CONSTRUCTION (OVERSEAS) LIMITED
    - now 02440830
    COSTAIN E & C (OVERSEAS) LIMITED
    - 1991-08-05 02440830
    QUICKJOB LIMITED
    - 1990-01-10 02440830
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (28 parents)
    Officer
    ~ 1994-11-01
    IIF 6 - Director → ME
  • 4
    COSTAIN ENGINEERING & CONSTRUCTION LIMITED
    - now 02440829
    COSTAIN E & C LIMITED
    - 1991-08-05 02440829
    QUESTEARN LIMITED
    - 1990-01-10 02440829
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (39 parents, 14 offsprings)
    Officer
    ~ 1998-04-30
    IIF 2 - Director → ME
  • 5
    COSTAIN GROUP PLC
    - now 01393773
    TRUSHELFCO (NO. 192) LIMITED - 1978-12-31
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (75 parents, 7 offsprings)
    Officer
    1995-09-27 ~ 1996-07-31
    IIF 5 - Director → ME
  • 6
    COSTAIN INTERNATIONAL LIMITED
    00563275
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Dissolved Corporate (38 parents)
    Officer
    1995-08-14 ~ 1995-10-18
    IIF 9 - Director → ME
    ~ 1995-01-01
    IIF 7 - Director → ME
  • 7
    COSTAIN LIMITED - now
    COSTAIN CIVIL ENGINEERING LIMITED
    - 1999-06-24 00610201 02757907
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (62 parents, 14 offsprings)
    Officer
    ~ 1998-04-30
    IIF 4 - Director → ME
  • 8
    COSTAIN MANAGEMENT DESIGN LIMITED
    - now 01599349
    BROOKBIRCH LIMITED
    - 1982-01-18 01599349
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Dissolved Corporate (19 parents)
    Officer
    ~ 1995-01-01
    IIF 8 - Director → ME

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