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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

Westwell, Mark

    Related profiles found in government register
  • Westwell, Mark
    British born in September 1961

    Resident in England

    Registered addresses and corresponding companies
    • 101, Pentonville Road, London, N1 9LG

      IIF 1
    • 20, Churchill Place, Canary Wharf, London, E14 5HJ, United Kingdom

      IIF 2
    • Dakota House, 25 Falcon Court, Preston Farm Business Park, Stockton-on-tees, Cleveland, TS18 3TX

      IIF 3
  • Westwell, Mark
    British banker born in September 1961

    Resident in England

    Registered addresses and corresponding companies
  • Westwell, Mark
    British non-executive director born in September 1961

    Resident in England

    Registered addresses and corresponding companies
    • The Old Granary, Manor Farm, Church Lane, Aylesby, DN37 7AW, England

      IIF 6
  • Westwell, Mark
    British senior vice president born in September 1961

    Resident in England

    Registered addresses and corresponding companies
    • 20, Churchill Place, London, E14 5HJ

      IIF 7
  • Westwell, Mark
    British banker born in September 1961

    Registered addresses and corresponding companies
    • 14 Woodlands, Clapham Park, Clapman, Bedfordshire, MK41 6FS

      IIF 8
  • Westwell, Mark
    British investment banker born in September 1961

    Registered addresses and corresponding companies
    • 3 Sturges Close, Walton Park, Milton Keynes, Buckinghamshire, MK7 7HJ

      IIF 9
child relation
Offspring entities and appointments
Active 1
  • 1
    THE INVESTING AND SAVING ALLIANCE
    - now
    Other registered number: 11738866
    TAX INCENTIVISED SAVINGS ASSOCIATION - 2019-06-04
    Related registration: 11738866
    PROFESSIONAL ISA MANAGERS' ASSOCIATION - 2007-06-01
    ISA MANAGERS' ASSOCIATION - 1998-07-14
    Dakota House 25 Falcon Court, Preston Farm Business Park, Stockton-on-tees, Cleveland
    Active Corporate (7 parents, 3 offsprings)
    Equity (Company account)
    188,416 GBP2025-06-30
    Officer
    2025-10-24 ~ now
    IIF 3 - Director → ME
Ceased 8
  • 1
    20 Churchill Place, London
    Active Corporate (2 parents, 1 offspring)
    Officer
    2014-11-13 ~ 2018-05-11
    IIF 4 - Director → ME
  • 2
    The Old Granary Manor Farm, Church Lane, Aylesby, England
    Active Corporate (4 parents)
    Equity (Company account)
    -216,319 GBP2024-08-31
    Officer
    2021-03-01 ~ 2024-10-28
    IIF 6 - Director → ME
  • 3
    CLAPHAM PARK MANAGEMENT "A" LIMITED - 2001-03-27
    HOWPER 181 LIMITED - 1996-04-30
    40a Market Square, St. Neots, Cambridgeshire
    Active Corporate (4 parents)
    Net Assets/Liabilities (Company account)
    48,182 GBP2024-06-30
    Officer
    2000-07-03 ~ 2001-08-30
    IIF 8 - Director → ME
  • 4
    J.P. MORGAN LIMITED
    - now
    Other registered number: OC303065
    J.P. MORGAN PLC - 2011-04-15
    Related registration: OC303065
    CHASE MANHATTAN PLC - 2001-01-02
    CHASE INVESTMENT BANK LIMITED - 1997-07-31
    CHASE MANHATTAN LIMITED - 1986-10-20
    CHASE MANHATTAN LIMITED - 1986-09-26
    25 Bank Street, Canary Wharf, London
    Active Corporate (4 parents, 7 offsprings)
    Officer
    1995-10-01 ~ 1996-12-17
    IIF 9 - Director → ME
  • 5
    20 Churchill Place, London
    Active Corporate (2 parents, 1 offspring)
    Officer
    2014-11-13 ~ 2018-05-11
    IIF 5 - Director → ME
  • 6
    NATIONAL DEAF-BLIND AND RUBELLA ASSOCIATION(THE) - 1997-10-16
    101 Pentonville Road, London
    Active Corporate (10 parents, 3 offsprings)
    Officer
    2022-03-09 ~ 2025-12-11
    IIF 1 - Director → ME
  • 7
    INFRAHEDGE LIMITED - 2018-07-25
    INFRAHEDGE PRIVATE LIMITED - 2011-01-14
    State Street Bank & Trust Co, 20 Churchill Place, Canary Wharf, London
    Active Corporate (3 parents)
    Officer
    2013-09-24 ~ 2017-01-03
    IIF 2 - Director → ME
  • 8
    HERONTRAIL LIMITED - 1994-11-30
    20 Churchill Place, London
    Active Corporate (5 parents)
    Officer
    2010-04-15 ~ 2019-12-31
    IIF 7 - Director → ME

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