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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

Barker, John Kirk

    Related profiles found in government register
  • Barker, John Kirk
    British born in February 1948

    Registered addresses and corresponding companies
    • C/o Isotron Plc, Moray Road Elgin Industrial Estate, Swindon, Wiltshire, SN2 8XS

      IIF 1
  • Barker, John Kirk
    British company director born in February 1948

    Registered addresses and corresponding companies
  • Barker, John Kirk
    British director born in February 1948

    Registered addresses and corresponding companies
    • Isotron Plc, Apple Walk Kembrey Park, Swindon, SN2 6BA

      IIF 7
    • Isotron Plc, Elgin Industrial Estate, Swindon, Wiltshire, SN2 8XS

      IIF 8
  • Barker, John Kirk
    English director born in February 1948

    Resident in England

    Registered addresses and corresponding companies
    • Field House, Cranham, Gloucester, GL4 8HB

      IIF 9
  • Barker, John Kirk
    English retired born in February 1948

    Resident in England

    Registered addresses and corresponding companies
    • Headway House, Pullman Court, Off Great Western Road, Gloucester, Gloucestershire, GL1 3EP, England

      IIF 10
child relation
Offspring entities and appointments
Active 1
  • 1
    Field House, Cranham
    Dissolved Corporate (2 parents)
    Officer
    2009-02-25 ~ dissolved
    IIF 9 - Director → ME
Ceased 9
  • 1
    GAMMA LABORATORIES LIMITED - 2005-10-17
    Ground Floor Stella, Windmill Hill Business Park, Whitehill Way Swindon, Wilts
    Dissolved Corporate (2 parents)
    Officer
    ~ 2007-03-31
    IIF 3 - Director → ME
  • 2
    IOTRON EBIS INDUSTRIES UK LIMITED - 2001-04-25
    SEVCO 1210 LIMITED - 2000-11-09
    Ground Floor Stella, Windmill Hill Business Park, Whitehill Way Swindon, Wilts
    Dissolved Corporate (3 parents)
    Officer
    2005-09-01 ~ 2007-03-31
    IIF 8 - Director → ME
  • 3
    Ground Floor Stella, Windmill Hill Business Park, Whitehill Way Swindon, Wilts
    Dissolved Corporate (3 parents)
    Officer
    ~ 2007-03-31
    IIF 4 - Director → ME
  • 4
    Headway House Pullman Court, Off Great Western Road, Gloucester, Gloucestershire
    Active Corporate (7 parents)
    Officer
    2010-05-10 ~ 2015-09-29
    IIF 10 - Director → ME
  • 5
    Ground Floor Stella, Windmill Hill Business Park, Whitehill Way Swindon, Wilts
    Dissolved Corporate (3 parents)
    Officer
    ~ 2007-03-31
    IIF 6 - Director → ME
  • 6
    ISOTRON INVESTMENTS LIMITED - 2011-11-18
    FOOD IRRADIATION SERVICES LIMITED - 2001-12-14
    SUPER GRADE ONION COMPANY LIMITED - 1982-12-13
    2200 Renaissance, Basing View, Basingstoke, Hampshire, England
    Active Corporate (3 parents)
    Equity (Company account)
    45,000 GBP2024-03-31
    Officer
    ~ 2007-03-31
    IIF 5 - Director → ME
  • 7
    ISOTRON LIMITED - 2011-12-01
    Related registration: 04828896
    ISOTRON PUBLIC LIMITED COMPANY - 2007-12-07
    BRICKTRIM LIMITED - 1983-12-22
    2200 Renaissance, Basing View, Basingstoke, Hampshire, England
    Active Corporate (4 parents, 1 offspring)
    Equity (Company account)
    80,000 GBP2024-03-31
    Officer
    ~ 2007-03-31
    IIF 2 - Director → ME
  • 8
    SYNERGY HEALTH LABORATORY SERVICES LIMITED - 2017-05-02
    JMJ LABORATORIES LIMITED - 2009-05-15
    Related registration: 00361625
    WARRIOR DESIGNS LIMITED - 1996-08-13
    Gavenny Court, Brecon Road, Abergavenny, Wales
    Active Corporate (6 parents, 1 offspring)
    Officer
    1996-07-31 ~ 2007-03-31
    IIF 1 - Director → ME
  • 9
    WILLIAMS MEDICAL SUPPLIES PLC - 2007-05-17
    Craiglas House, Maerdy Industrial Estate, Rhymney, Tredegar, Gwent
    Active Corporate (4 parents, 2 offsprings)
    Officer
    2005-09-29 ~ 2007-05-22
    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.