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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

Kearon, John Victor

    Related profiles found in government register
  • Kearon, John Victor

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

    Resident in England

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

      IIF 5 IIF 6 IIF 7
    • 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
    • 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
    • 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
    • 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
    • Russell Square House 10-12, Russell Square, London, WC1B 5EH

      IIF 12
child relation
Offspring entities and appointments 7
  • 1
    BRAINJUICER GROUP LIMITED
    - now 10438174 05940040... (more)
    SYSTEM1 GROUP LIMITED
    - 2017-03-23 10438174 05940040
    Russell Square House, 10-12 Russell Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2016-10-20 ~ dissolved
    IIF 9 - Director → ME
  • 2
    BRAINJUICER LIMITED
    - now 09941056 03900547
    SYSTEM1 RESEARCH LIMITED
    - 2017-03-14 09941056 03900547
    Russell Square House, 10-12 Russell Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2016-01-07 ~ dissolved
    IIF 10 - Director → ME
  • 3
    BRAND GENETICS LTD
    - now 03145513
    MUTANT MARKETING LIMITED
    - 1996-06-10 03145513
    58 Bloomsbury Street, London, United Kingdom
    Active Corporate (7 parents, 1 offspring)
    Officer
    1996-01-12 ~ 2000-04-25
    IIF 11 - Director → ME
  • 4
    SYSTEM1 AD RATINGS LIMITED
    11313402
    4 More London Riverside, London, England
    Active Corporate (4 parents)
    Officer
    2018-04-17 ~ now
    IIF 6 - Director → ME
    2020-04-03 ~ 2020-10-12
    IIF 3 - Secretary → ME
  • 5
    SYSTEM1 AGENCY LTD
    - now 09829202
    SYSTEM-1 AGENCY LIMITED
    - 2016-01-25 09829202
    4 More London Riverside, London, England
    Active Corporate (4 parents, 1 offspring)
    Officer
    2015-10-19 ~ now
    IIF 5 - Director → ME
    2020-04-03 ~ 2020-10-12
    IIF 1 - Secretary → ME
  • 6
    SYSTEM1 GROUP PLC
    - now 05940040 10438174
    BRAINJUICER GROUP PLC
    - 2017-03-23 05940040 10438174
    BRAINJUICER GROUP LIMITED
    - 2006-11-28 05940040 10438174
    4 More London Riverside, London, England
    Active Corporate (21 parents, 3 offsprings)
    Officer
    2006-10-05 ~ now
    IIF 8 - Director → ME
    2020-04-20 ~ 2020-10-12
    IIF 2 - Secretary → ME
    Person with significant control
    2016-04-06 ~ 2018-11-19
    IIF 12 - Ownership of shares – More than 25% but not more than 50% OE
  • 7
    SYSTEM1 RESEARCH LIMITED
    - now 03900547 09941056
    BRAINJUICER LIMITED
    - 2017-03-14 03900547 09941056
    BRAINJUICER.COM LIMITED
    - 2003-03-18 03900547
    CREATIVE-TOOLBOX.COM LIMITED
    - 2000-04-19 03900547
    RESEARCH-TOOLBOX.COM LIMITED
    - 2000-03-02 03900547
    4 More London Riverside, London, England
    Active Corporate (15 parents, 1 offspring)
    Officer
    1999-12-29 ~ now
    IIF 7 - Director → ME
    2020-04-03 ~ 2020-10-12
    IIF 4 - Secretary → ME

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