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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

Williamson, John Alexander

    Related profiles found in government register
  • Williamson, John Alexander
    British banker born in May 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 97 Christchurch Road, East Sheen, London, SW14 7AT

      IIF 1
    • 97, Christchurch Road, London, SW14 7AT

      IIF 2
    • Leconfield House, Curzon House, London, W1J 5JB

      IIF 3
  • Williamson, John Alexander
    British director private banking born in May 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Leconfield House, Curzon Street, London, W1J 5JB, United Kingdom

      IIF 4
  • Williamson, John Alexander
    British born in May 1962

    Resident in Switzerland

    Registered addresses and corresponding companies
    • 51, Kingsway Place, Sans Walk, London, EC1R 0LU

      IIF 5
  • Williamson, John Alexander
    British banker born in May 1962

    Resident in Switzerland

    Registered addresses and corresponding companies
    • Leconfield House, Curzon Street, London, W1J 5JB

      IIF 6
  • Williamson, John Alexander
    British bank born in May 1962

    Registered addresses and corresponding companies
    • 31 Observatory Road, London, SW14 7QB

      IIF 7
  • Williamson, John Alexander
    British bank manager born in May 1962

    Registered addresses and corresponding companies
    • 31 Observatory Road, London, SW14 7QB

      IIF 8
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 8
  • 1
    BIA FINANCIAL PLANNING LTD - now
    BIA FP LIMITED - 2017-03-10
    EFG INDEPENDENT FINANCIAL ADVISERS LIMITED
    - 2017-03-09 02411425
    EFG ASHBY LONDON FINANCIAL SERVICES LIMITED
    - 2010-12-21 02411425
    ASHBY LONDON FINANCIAL SERVICES LIMITED - 2007-10-15
    A L HOLDINGS LIMITED - 1996-11-07 03348873
    Ground Floor Reading Bridge House, George Street, Reading, England
    Dissolved Corporate (2 parents)
    Officer
    2007-11-07 ~ 2011-06-29
    IIF 3 - Director → ME
  • 2
    BRYAN & BRYAN LIMITED - now 08326351
    PRIVATE FINANCIAL HOLDINGS LIMITED
    - 2012-12-28 02304198 01501907
    TRUSHELFCO (NO.1337) LIMITED - 1989-02-01
    One Great Cumberland Place, Marble Arch, London
    Dissolved Corporate (4 parents)
    Officer
    2002-05-13 ~ 2005-09-20
    IIF 1 - Director → ME
  • 3
    COUTTS & COMPANY
    00036695
    440 Strand, London
    Active Corporate (10 parents, 5 offsprings)
    Officer
    2001-02-05 ~ 2002-04-30
    IIF 8 - Director → ME
  • 4
    EFG ASSET MANAGEMENT (UK) LIMITED
    07389736
    Park House, 116 Park Street, London, Uk, United Kingdom
    Active Corporate (8 parents)
    Officer
    2011-04-05 ~ 2011-06-29
    IIF 4 - Director → ME
  • 5
    EFG PRIVATE BANK LIMITED
    - now 02321802
    THE PRIVATE BANK & TRUST COMPANY LIMITED - 1997-09-10 03439607
    SHELFCO (NO. 305) LIMITED - 1989-04-10
    Park House, 116 Park Street, London, England
    Active Corporate (11 parents, 5 offsprings)
    Officer
    2002-05-13 ~ 2015-09-28
    IIF 6 - Director → ME
  • 6
    M M & K LIMITED
    - now 01983794
    MWP MINNS & KITTOE LIMITED - 1988-09-27 01494320
    SHOREHAVENS LIMITED - 1986-08-01
    6th Floor Kings House, 9-10 Haymarket, London, United Kingdom
    Active Corporate (4 parents, 8 offsprings)
    Profit/Loss (Company account)
    -65,161 GBP2024-01-01 ~ 2024-12-31
    Officer
    2002-07-18 ~ 2003-07-08
    IIF 7 - Director → ME
  • 7
    SERIOUS TRUST LIMITED
    07883912
    Unit 127 Mare Street Studios 203/213 Mare Street, Hackney, London, United Kingdom
    Active Corporate (7 parents)
    Officer
    2016-05-11 ~ 2023-01-24
    IIF 5 - Director → ME
  • 8
    SINFONIA SMITH SQUARE - now 10284465, 03028678, 05737116
    SOUTHBANK SINFONIA - 2024-07-24
    THE SOUTHBANK SINFONIA
    - 2016-07-12 04335616
    St John's, Smith Square, London, England
    Active Corporate (9 parents, 2 offsprings)
    Officer
    2009-07-03 ~ 2013-07-08
    IIF 2 - Director → ME

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