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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

Tomkins, Alastair Stewart

    Related profiles found in government register
  • Tomkins, Alastair Stewart
    British it born in December 1968

    Registered addresses and corresponding companies
    • Flat 23 Park Lodge, London, SW18 5SH

      IIF 1
  • Tomkins, Alastair Stewart
    British born in December 1968

    Resident in England

    Registered addresses and corresponding companies
    • Unit 3 164 -170, High Street, Crowthorne, RG45 7AT, England

      IIF 2
  • Mr Alastair Stewart Tomkins
    British born in December 1968

    Resident in England

    Registered addresses and corresponding companies
    • Unit 3 164 -170, High Street, Crowthorne, RG45 7AT, England

      IIF 3
child relation
Offspring entities and appointments
Active 1
  • 1
    REGEXBIO LIMITED
    Other registered number: 06850859
    Unit 3 164 -170 High Street, Crowthorne, England
    Active Corporate (2 parents)
    Equity (Company account)
    338,108 GBP2024-03-31
    Officer
    2022-09-21 ~ now
    IIF 2 - Director → ME
Ceased 2
  • 1
    322 Upper Richmond Road, London, England, England
    Active Corporate (3 parents)
    Equity (Company account)
    18,184 GBP2024-12-31
    Officer
    2001-02-22 ~ 2002-05-21
    IIF 1 - Director → ME
  • 2
    REGEXBIO LIMITED
    Other registered number: 06850859
    Unit 3 164 -170 High Street, Crowthorne, England
    Active Corporate (2 parents)
    Equity (Company account)
    338,108 GBP2024-03-31
    Person with significant control
    2016-04-06 ~ 2022-09-13
    IIF 3 - Ownership of shares – More than 25% but not more than 50% OE

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.