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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

Tsai, John, Dr

    Related profiles found in government register
  • Tsai, John, Dr
    American born in September 1967

    Resident in Switzerland

    Registered addresses and corresponding companies
    • 8, Bloomsbury Street, London, WC1B 3SR, England

      IIF 1 IIF 2
    • Sycamore House, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2BP, England

      IIF 3
  • Tsai, John, Dr
    American director born in September 1967

    Resident in Switzerland

    Registered addresses and corresponding companies
    • 8, Bloomsbury Street, London, WC1B 3SR, England

      IIF 4 IIF 5
  • Tsai, John
    American born in September 1967

    Resident in Switzerland

    Registered addresses and corresponding companies
    • Innovation Building, Old Campus Road, Roosevelt Drive, Oxford, OX3 7FZ, England

      IIF 6
child relation
Offspring entities and appointments 6
  • 1
    FORCEFIELD THERAPEUTICS LIMITED
    12983133
    8 Bloomsbury Street, London, England
    Active Corporate (10 parents)
    Officer
    2023-06-27 ~ 2026-01-31
    IIF 1 - Director → ME
  • 2
    MOSAIC THERAPEUTICS LIMITED
    12780154
    Building 960 Babraham Research Campus, Babraham, Cambridgeshire, England
    Active Corporate (18 parents)
    Officer
    2023-10-03 ~ 2024-05-14
    IIF 4 - Director → ME
  • 3
    PURESPRING THERAPEUTICS LIMITED
    - now 12543677
    SYNCONA COLLABORATION (S) LIMITED - 2020-09-08
    8 Bloomsbury Street, London, England
    Active Corporate (14 parents)
    Officer
    2023-06-28 ~ now
    IIF 2 - Director → ME
  • 4
    RE-AIM THERAPEUTICS LTD
    15689618
    Innovation Building Old Campus Road, Roosevelt Drive, Oxford, England
    Active Corporate (7 parents)
    Officer
    2025-10-02 ~ 2026-02-18
    IIF 6 - Director → ME
  • 5
    SPUR THERAPEUTICS HOLDINGS LIMITED
    - now 15295548
    SPUR THERAPEUTICS LIMITED
    - 2024-09-27 15295548 09500073
    BIDCO 1354 LIMITED
    - 2024-06-14 15295548 15526291... (more)
    Sycamore House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (7 parents, 2 offsprings)
    Officer
    2024-04-30 ~ 2026-01-31
    IIF 3 - Director → ME
  • 6
    SWANBIO THERAPEUTICS LIMITED
    - now 10942620
    AVISTAT BIO LIMITED - 2017-12-08
    AVALON BIO LIMITED - 2017-10-24
    Sycamore House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (19 parents)
    Officer
    2023-10-10 ~ 2024-03-14
    IIF 5 - Director → ME

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