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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

Kearon, John Victor

    Related profiles found in government register
  • Kearon, John Victor

    Registered addresses and corresponding companies
  • Kearon, John Victor
    British founder and executive president born in October 1965

    Resident in England

    Registered addresses and corresponding companies
    • icon of address 4, More London Riverside, London, SE1 2AU, England

      IIF 5 IIF 6 IIF 7
    • icon of address 52, Bedford Row, Holborn, London, WC1R 4LR, England

      IIF 8
  • Kearon, John Victor
    British chief executive born in October 1965

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Russell Square House, 10-12 Russell Square, London, WC1B 5EH, United Kingdom

      IIF 9
  • Kearon, John Victor
    British chief executive officer born in October 1965

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Russell Square House, 10-12 Russell Square, London, WC1B 5EH, United Kingdom

      IIF 10
  • Kearon, John Victor
    British planning director born in October 1965

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 9 Carlyle Road, Cambridge, CB4 3DN

      IIF 11
  • Mr John Victor Kearon
    British born in October 1965

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Russell Square House 10-12, Russell Square, London, WC1B 5EH

      IIF 12
child relation
Offspring entities and appointments
Active 6
  • 1
    SYSTEM1 GROUP LIMITED - 2017-03-23
    icon of address Russell Square House, 10-12 Russell Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2016-10-20 ~ dissolved
    IIF 9 - Director → ME
  • 2
    SYSTEM1 RESEARCH LIMITED - 2017-03-14
    icon of address Russell Square House, 10-12 Russell Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2016-01-07 ~ dissolved
    IIF 10 - Director → ME
  • 3
    icon of address 4 More London Riverside, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    1 GBP2018-09-30
    Officer
    icon of calendar 2018-04-17 ~ now
    IIF 6 - Director → ME
  • 4
    SYSTEM-1 AGENCY LIMITED - 2016-01-25
    icon of address 4 More London Riverside, London, England
    Active Corporate (3 parents, 1 offspring)
    Officer
    icon of calendar 2015-10-19 ~ now
    IIF 5 - Director → ME
  • 5
    BRAINJUICER GROUP PLC - 2017-03-23
    BRAINJUICER GROUP LIMITED - 2006-11-28
    icon of address 4 More London Riverside, London, England
    Active Corporate (8 parents, 3 offsprings)
    Officer
    icon of calendar 2006-10-05 ~ now
    IIF 8 - Director → ME
  • 6
    BRAINJUICER LIMITED - 2017-03-14
    BRAINJUICER.COM LIMITED - 2003-03-18
    CREATIVE-TOOLBOX.COM LIMITED - 2000-04-19
    RESEARCH-TOOLBOX.COM LIMITED - 2000-03-02
    icon of address 4 More London Riverside, London, England
    Active Corporate (3 parents, 1 offspring)
    Officer
    icon of calendar 1999-12-29 ~ now
    IIF 7 - Director → ME
Ceased 5
  • 1
    MUTANT MARKETING LIMITED - 1996-06-10
    icon of address 58 Bloomsbury Street, London, United Kingdom
    Active Corporate (2 parents, 1 offspring)
    Equity (Company account)
    Retained earnings (accumulated losses)
    2,444,584 GBP2023-12-31
    Officer
    icon of calendar 1996-01-12 ~ 2000-04-25
    IIF 11 - Director → ME
  • 2
    icon of address 4 More London Riverside, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    1 GBP2018-09-30
    Officer
    icon of calendar 2020-04-03 ~ 2020-10-12
    IIF 3 - Secretary → ME
  • 3
    SYSTEM-1 AGENCY LIMITED - 2016-01-25
    icon of address 4 More London Riverside, London, England
    Active Corporate (3 parents, 1 offspring)
    Officer
    icon of calendar 2020-04-03 ~ 2020-10-12
    IIF 1 - Secretary → ME
  • 4
    BRAINJUICER GROUP PLC - 2017-03-23
    BRAINJUICER GROUP LIMITED - 2006-11-28
    icon of address 4 More London Riverside, London, England
    Active Corporate (8 parents, 3 offsprings)
    Officer
    icon of calendar 2020-04-20 ~ 2020-10-12
    IIF 2 - Secretary → ME
    Person with significant control
    icon of calendar 2016-04-06 ~ 2018-11-19
    IIF 12 - Ownership of shares – More than 25% but not more than 50% OE
  • 5
    BRAINJUICER LIMITED - 2017-03-14
    BRAINJUICER.COM LIMITED - 2003-03-18
    CREATIVE-TOOLBOX.COM LIMITED - 2000-04-19
    RESEARCH-TOOLBOX.COM LIMITED - 2000-03-02
    icon of address 4 More London Riverside, London, England
    Active Corporate (3 parents, 1 offspring)
    Officer
    icon of calendar 2020-04-03 ~ 2020-10-12
    IIF 4 - Secretary → ME

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Contains public sector information retrieved at 24 April 2025 and licensed under the Open Government Licence v3.0.