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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

Castell, William Martin, Sir

    Related profiles found in government register
  • Castell, William Martin, Sir
    British born in April 1947

    Registered addresses and corresponding companies
  • Castell, William Martin, Sir
    British born in April 1947

    Resident in England

    Registered addresses and corresponding companies
  • Castell, William Martin, Sir
    born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Castell, William Martin, Sir
    British born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Castell, William Martin
    British born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Castell, William Martin
    British director born in April 1947

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Sir William Martin Castell
    British born in April 1947

    Resident in England

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments 22
  • 1
    ACT THERAPEUTICS LTD
    12541462
    Active Corporate (8 parents)
    Officer
    2020-03-31 ~ 2024-06-28
    IIF 22 - Director → ME
  • 2
    BP P.L.C.
    - now 00102498
    BP AMOCO P.L.C. - 2001-05-01
    THE BRITISH PETROLEUM COMPANY P.L.C. - 1998-12-31
    Active Corporate (94 parents, 26 offsprings)
    Officer
    2006-07-20 ~ 2012-04-12
    IIF 14 - Director → ME
  • 3
    CHICHESTER FESTIVAL THEATRE
    04210225 00687593... (more)
    Active Corporate (62 parents, 5 offsprings)
    Officer
    2009-12-18 ~ 2022-03-18
    IIF 20 - Director → ME
  • 4
    CHICHESTER FESTIVAL THEATRE PRODUCTIONS COMPANY LIMITED(THE)
    00703132 00687593... (more)
    Dissolved Corporate (34 parents)
    Officer
    2013-06-29 ~ dissolved
    IIF 10 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 23 - Ownership of shares – More than 25% but not more than 50% → OE
  • 5
    CHICHESTER FESTIVAL THEATRE TRUST LIMITED(THE)
    00687593 04210225... (more)
    Dissolved Corporate (30 parents)
    Officer
    2013-06-29 ~ dissolved
    IIF 9 - Director → ME
  • 6
    EDUCATION AND EMPLOYERS TASKFORCE
    - now 06886359
    NATIONAL EDUCATION & EMPLOYER PARTNERSHIP TASKFORCE
    - 2010-09-15 06886359
    Active Corporate (37 parents)
    Officer
    2009-04-23 ~ 2015-12-01
    IIF 15 - Director → ME
  • 7
    FOUNDATION FOR FUTURE LONDON - now
    FOUNDATION FOR FUTURELONDON
    - 2025-07-17 09483822
    Active Corporate (34 parents)
    Officer
    2015-03-11 ~ 2018-03-31
    IIF 19 - Director → ME
    Person with significant control
    2016-04-06 ~ 2018-03-31
    IIF 24 - Has significant influence or control → OE
  • 8
    GE HEALTHCARE (AB) - now
    AMERSHAM BIOSCIENCES
    - 2020-07-06 03387094
    AMERSHAM PHARMACIA BIOTECH LIMITED
    - 2001-10-31 03387094 03337033
    Active Corporate (34 parents)
    Officer
    1997-06-10 ~ 2004-04-08
    IIF 1 - Director → ME
  • 9
    GE HEALTHCARE LIMITED
    - now 01002610
    AMERSHAM PLC
    - 2005-02-14 01002610
    NYCOMED AMERSHAM PLC
    - 2001-07-12 01002610
    AMERSHAM INTERNATIONAL PUBLIC LIMITED COMPANY
    - 1997-10-22 01002610
    RADIOCHEMICAL CENTRE LIMITED (THE)
    - 1981-12-31 01002610
    Active Corporate (66 parents, 3 offsprings)
    Officer
    (before 1992-08-22) ~ 2006-03-10
    IIF 2 - Director → ME
  • 10
    HENRY WELLCOME LIMITED
    - now 02636171
    NONYA LIMITED - 1992-02-24
    Active Corporate (20 parents)
    Officer
    2006-05-01 ~ 2015-09-30
    IIF 13 - Director → ME
  • 11
    M (2003) PLC - now
    MARCONI PLC
    - 2003-10-21 03846429
    Dissolved Corporate (29 parents)
    Officer
    1999-10-04 ~ 2002-10-08
    IIF 6 - Director → ME
  • 12
    OLYCEUM TRUST
    09474910
    Dissolved Corporate (5 parents)
    Officer
    2015-03-06 ~ dissolved
    IIF 16 - Director → ME
  • 13
    ONDRA LLP
    - now OC340822 15554069
    QUATTRO PARTNERS LLP - 2009-03-06
    Active Corporate (29 parents)
    Officer
    2012-06-18 ~ 2013-06-02
    IIF 8 - LLP Member → ME
  • 14
    ORTHO-CLINICAL DIAGNOSTICS - now
    JOHNSON & JOHNSON CLINICAL DIAGNOSTICS LTD - 1996-07-31
    KODAK CLINICAL DIAGNOSTICS LIMITED
    - 1995-03-27 02549777
    AMERLITE DIAGNOSTICS LTD.
    - 1992-04-01 02549777
    610TH SHELF TRADING COMPANY LIMITED
    - 1990-11-05 02549777 02560699... (more)
    Active Corporate (47 parents)
    Officer
    (before 1991-10-18) ~ 1992-04-06
    IIF 3 - Director → ME
  • 15
    RESPONSIBLE LEADERSHIP FOUNDATION LIMITED
    09367066 09366339
    Active Corporate (14 parents)
    Officer
    2015-11-11 ~ 2023-12-31
    IIF 17 - Director → ME
  • 16
    THE HIGH STREET FUND
    07747129
    Dissolved Corporate (5 parents)
    Officer
    2011-08-19 ~ dissolved
    IIF 21 - Director → ME
  • 17
    THE INTELLECTUAL PROPERTY INSTITUTE
    - now 01557489
    COMMON LAW INSTITUTE OF INTELLECTUAL PROPERTY(THE)
    - 1995-03-22 01557489
    COMMON LAW INSTITUTE OF INTELLECTUAL PROPERTY LIMITED(THE) - 1987-01-02
    Dissolved Corporate (49 parents)
    Officer
    1994-10-19 ~ 2005-08-03
    IIF 5 - Director → ME
  • 18
    THE WELLCOME TRUST LIMITED
    02711000
    Active Corporate (55 parents, 25 offsprings)
    Officer
    2006-01-01 ~ 2015-09-30
    IIF 18 - Director → ME
  • 19
    TUSK CORPORATION LIMITED - now
    TELENT LIMITED - 2025-08-13
    TELENT PLC - 2008-03-03
    MARCONI CORPORATION PLC - 2006-01-24
    GENERAL ELECTRIC COMPANY P L C(THE)
    - 2000-03-07 00067307
    GENERAL ELECTRIC COMPANY P. L. C.(THE) - 1985-10-04
    Active Corporate (71 parents, 14 offsprings)
    Officer
    1997-10-01 ~ 2000-03-02
    IIF 4 - Director → ME
  • 20
    WEBB'S LAND LIMITED
    - now 02289495
    LAPBUY LIMITED - 1988-12-01
    Active Corporate (17 parents)
    Officer
    2021-01-07 ~ 2025-12-01
    IIF 7 - Director → ME
  • 21
    WELLCOME TRUST DIRECTOR LIMITED
    04602152
    Dissolved Corporate (7 parents, 1 offspring)
    Officer
    2006-05-01 ~ dissolved
    IIF 12 - Director → ME
  • 22
    WELLCOME TRUST NOMINEES LIMITED
    - now 00594081
    WELLCOME CUSTODIAN TRUSTEES LIMITED - 1987-11-20
    Active Corporate (27 parents)
    Officer
    2006-05-01 ~ 2015-09-30
    IIF 11 - Director → ME

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Contains public sector information retrieved at 14 July 2026 and licensed under the Open Government Licence v3.0.