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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

Tonkin, William Marrack

    Related profiles found in government register
  • Tonkin, William Marrack
    British born in February 1972

    Resident in Scotland

    Registered addresses and corresponding companies
    • icon of address 6th Floor, Quartermile 4, 7a Nightingale Way, Edinburgh, EH3 9EG

      IIF 1
    • icon of address 6th Floor, Quartermile 4, 7a Nightingale Way, Edinburgh, EH3 9EG, Scotland

      IIF 2 IIF 3
    • icon of address Cannon Place, 78 Cannon Street, London, EC4N 6AG, England

      IIF 4
  • Tonkin, William Marrack
    British company secretary born in February 1972

    Resident in Scotland

    Registered addresses and corresponding companies
    • icon of address 1, More London Place, London, SE1 2AF

      IIF 5
  • Tonkin, William Marrack
    British director born in February 1972

    Resident in Scotland

    Registered addresses and corresponding companies
    • icon of address F&c Asset Management Plc, 80 George Street, Edinburgh, Edinburgh, EH2 3BU, United Kingdom

      IIF 6
    • icon of address Exchange House, Primrose Street, London, Greater London, EC2A 2NY

      IIF 7
  • Tonkin, William Marrack
    British head of client services born in February 1972

    Resident in Scotland

    Registered addresses and corresponding companies
    • icon of address Exchange House, Primrose Street, London, EC2A 2NY

      IIF 8
  • Tonkin, William Marrack
    British company secretary

    Registered addresses and corresponding companies
    • icon of address Isis Asset Management Plc, 80 George Street, Edinburgh, EH2 3BU

      IIF 9
  • Mr William Marrack Tonkin
    British born in February 1972

    Resident in Scotland

    Registered addresses and corresponding companies
    • icon of address 6th Floor Quartermile 4, 7a Nightingale Way, Edinburgh, Midlothian, EH3 9EG, Scotland

      IIF 10
child relation
Offspring entities and appointments
Active 6
  • 1
    BMO FUND MANAGEMENT LIMITED - 2022-07-05
    SUN ALLIANCE UNIT TRUST MANAGEMENT LIMITED - 1997-10-15
    ROYAL & SUN ALLIANCE UNIT TRUST MANAGEMENT LIMITED - 2002-09-19
    ISIS FUND MANAGEMENT LIMITED - 2004-10-29
    REACHCALL LIMITED - 1987-11-16
    F&C FUND MANAGEMENT LIMITED - 2018-10-31
    icon of address Cannon Place, 78 Cannon Street, London, England
    Active Corporate (10 parents, 2 offsprings)
    Officer
    icon of calendar 2014-01-08 ~ now
    IIF 4 - Director → ME
  • 2
    F&C INVESTMENT BUSINESS LIMITED - 2018-10-31
    BMO INVESTMENT BUSINESS LIMITED - 2022-06-30
    IVORY & SIME TRUSTLINK LIMITED - 2004-03-22
    ISIS INVESTMENT TRUSTS BUSINESS LIMITED - 2006-11-24
    icon of address 6th Floor Quartermile 4, 7a Nightingale Way, Edinburgh, Scotland
    Active Corporate (10 parents, 63 offsprings)
    Officer
    icon of calendar 2014-01-08 ~ now
    IIF 3 - Director → ME
  • 3
    F&C BARROW HANLEY US TRUST PLC - 2013-06-11
    icon of address Exchange House, Primrose Street, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2012-11-30 ~ dissolved
    IIF 6 - Director → ME
  • 4
    ISIS GROUP ESOP TRUSTEE LIMITED - 2004-10-15
    I&S GROUP ESOP TRUSTEE LIMITED - 2002-09-30
    icon of address 6th Floor, Quartermile 4 7a Nightingale Way, Edinburgh, Scotland
    Active Corporate (4 parents)
    Officer
    icon of calendar 2016-06-30 ~ now
    IIF 2 - Director → ME
  • 5
    icon of address 6th Floor, Quartermile 4 7a Nightingale Way, Edinburgh
    Active Corporate (4 parents)
    Officer
    icon of calendar 2013-07-05 ~ now
    IIF 1 - Director → ME
  • 6
    icon of address Exchange House, Primrose Street, London, Greater London
    Dissolved Corporate (6 parents)
    Person with significant control
    icon of calendar 2021-07-30 ~ dissolved
    IIF 10 - Ownership of voting rights - 75% or moreOE
    IIF 10 - Right to appoint or remove directorsOE
    IIF 10 - Ownership of shares – 75% or moreOE
Ceased 4
  • 1
    ISIS ASSET MANAGEMENT PLC - 2004-10-08
    BMO ASSET MANAGEMENT (HOLDINGS) PLC - 2022-06-30
    IVORY & SIME PUBLIC LIMITED COMPANY - 1998-02-17
    F&C ASSET MANAGEMENT PLC - 2018-10-31
    COLUMBIA THREADNEEDLE AM (HOLDINGS) PLC - 2025-02-17
    FRIENDS IVORY & SIME PLC - 2002-09-27
    icon of address 6th Floor Quartermile 4, 7a Nightingale Way, Edinburgh, Scotland
    Active Corporate (4 parents, 35 offsprings)
    Officer
    icon of calendar 2002-07-01 ~ 2016-09-13
    IIF 9 - Secretary → ME
  • 2
    F&C BARROW HANLEY US TRUST PLC - 2013-06-11
    icon of address Exchange House, Primrose Street, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2012-05-11 ~ 2012-05-17
    IIF 8 - Director → ME
  • 3
    LONDON AND MANCHESTER (MANAGED FUNDS) LIMITED - 2000-01-25
    ISIS MANAGED PENSION FUNDS LIMITED - 2004-10-27
    FRIENDS IVORY & SIME MANAGED PENSION FUNDS LIMITED - 2002-09-30
    WILVERLEY INDUSTRIAL ESTATES LIMITED - 1982-08-12
    icon of address Ernst & Young Llp, 1 More London Place, London
    Dissolved Corporate (1 parent)
    Officer
    icon of calendar 2009-01-01 ~ 2016-09-29
    IIF 5 - Director → ME
  • 4
    icon of address Exchange House, Primrose Street, London, Greater London
    Dissolved Corporate (6 parents)
    Officer
    icon of calendar 2021-07-30 ~ 2021-08-17
    IIF 7 - Director → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.