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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

Williamson, Mark

    Related profiles found in government register
  • Williamson, Mark
    British investment prof/endowment mana born in February 1963

    Registered addresses and corresponding companies
    • 59 Maugas Avenue, Wellesley, Ma, 02181, Usa

      IIF 1
  • Williamson, Mark
    British investment professional / endo born in February 1963

    Registered addresses and corresponding companies
    • 59 Maugas Avenue, Wellesley, Ma, 02181, Usa

      IIF 2
  • Williamson, Mark
    British investment professional endowm born in February 1963

    Registered addresses and corresponding companies
    • 59 Maugas Avenue, Wellesley, Ma, 02181, Usa

      IIF 3
  • Williamson, Mark
    British investment professional/endowm born in February 1963

    Registered addresses and corresponding companies
    • 59 Maugas Avenue, Wellesley, Ma, 02181, Usa

      IIF 4
child relation
Offspring entities and appointments 4
  • 1
    CHUBB CAPITAL V LIMITED - now
    ACE CAPITAL V LIMITED - 2016-03-30
    TARQUIN UNDERWRITERS LIMITED
    - 1998-07-21 02949447
    PLAZAWAY LIMITED
    - 1994-11-29 02949447
    40 Leadenhall Street, London, United Kingdom
    Active Corporate (30 parents)
    Officer
    1994-11-28 ~ 1996-05-15
    IIF 3 - Director → ME
  • 2
    CHUBB LEADENHALL LIMITED - now
    ACE LEADENHALL LIMITED - 2016-03-30
    ACE (CG) LIMITED - 2002-01-09
    CHARMAN GROUP LIMITED
    - 1999-01-04 02028057
    CHARMAN UNDERWRITING AGENCIES LIMITED - 1989-09-14
    CHARMAN & LOVEDAY AGENCIES LIMITED - 1986-10-13
    GILTBUYER LIMITED - 1986-07-31
    40 Leadenhall Street, London, United Kingdom
    Active Corporate (24 parents, 1 offspring)
    Officer
    1994-11-30 ~ 1996-05-15
    IIF 2 - Director → ME
  • 3
    CHUBB TARQUIN - now
    ACE TARQUIN - 2016-03-30
    TARQUIN
    - 1999-01-04 02983302
    AMBERFLAME PLC
    - 1994-11-29 02983302 02853841
    40 Leadenhall Street, London, United Kingdom
    Active Corporate (26 parents, 2 offsprings)
    Officer
    1994-11-28 ~ 1996-05-15
    IIF 4 - Director → ME
  • 4
    CHUBB UNDERWRITING AGENCIES LIMITED - now
    ACE UNDERWRITING AGENCIES LIMITED - 2017-05-02
    CHARMAN UNDERWRITING AGENCIES LIMITED
    - 1999-01-04 02287773 02028057
    SIMBRIDGE LIMITED - 1989-09-14
    40 Leadenhall Street, London, United Kingdom
    Active Corporate (57 parents)
    Officer
    1994-11-30 ~ 1996-05-15
    IIF 1 - Director → ME

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.