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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

Christopher John Oliver

    Related profiles found in government register
  • Christopher John Oliver
    British born in February 1958

    Resident in England

    Registered addresses and corresponding companies
    • Mast House, Derby Road, Liverpool, L20 1EA

      IIF 1
  • Oliver, Christopher John
    British born in February 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Mast House, Derby Road, Bootle, Merseyside, L20 1EA

      IIF 2 IIF 3 IIF 4
    • Mast House, Derby Road, Liverpool, L20 1EA

      IIF 5
    • Mast House Derby Rd, Bootle, Merseyside, L20 1EA

      IIF 6
  • Oliver, Christopher John
    British company director born in February 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 7 Forresters Close, Norley, Warrington, Cheshire, WA6 8NN

      IIF 7 IIF 8
child relation
Offspring entities and appointments
Active 5
  • 1
    DIAMED DIAGNOSTICS LIMITED - 1987-03-11
    Mast House, Derby Road, Bootle, Merseyside
    Active Corporate (2 parents)
    Equity (Company account)
    1,000 GBP2024-09-30
    Officer
    1998-05-01 ~ now
    IIF 4 - Director → ME
  • 2
    MAST LABORATORIES LIMITED - 1994-11-14
    Mast House, Derby Road, Liverpool
    Active Corporate (1 parent, 4 offsprings)
    Officer
    ~ now
    IIF 5 - Director → ME
    Person with significant control
    2017-03-05 ~ now
    IIF 1 - Right to appoint or remove directorsOE
    IIF 1 - Ownership of shares – More than 25% but not more than 50%OE
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50%OE
  • 3
    Mast House Derby Rd, Bootle, Merseyside
    Active Corporate (2 parents)
    Equity (Company account)
    1,000 GBP2024-09-30
    Officer
    1998-05-01 ~ now
    IIF 6 - Director → ME
  • 4
    Mast House, Derby Road, Bootle, Merseyside
    Active Corporate (2 parents)
    Equity (Company account)
    -14,535 GBP2024-09-30
    Officer
    2000-01-04 ~ now
    IIF 3 - Director → ME
  • 5
    Mast House, Derby Road, Bootle, Merseyside
    Active Corporate (2 parents)
    Officer
    1998-05-01 ~ now
    IIF 2 - Director → ME
Ceased 2
  • 1
    SWINTON GROUP LIMITED - 2021-08-23
    SWINTON INSURANCE BROKERS LIMITED - 1988-07-21
    GROVE INVESTMENTS (KINGSTON) LIMITED - 1987-07-01
    Embankment West Tower, 101 Cathedral Approach, Salford, United Kingdom
    Active Corporate (8 parents, 1 offspring)
    Officer
    ~ 1996-10-31
    IIF 8 - Director → ME
  • 2
    SWINTON SERVICES LIMITED - 1989-05-18
    Embankment West Tower, 101 Cathedral Approach, Salford, United Kingdom
    Active Corporate (3 parents)
    Officer
    ~ 1996-10-31
    IIF 7 - Director → ME

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