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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

Osborne, Mark Jonathan

    Related profiles found in government register
  • Osborne, Mark Jonathan
    British managing director born in March 1975

    Resident in England

    Registered addresses and corresponding companies
    • 9 Hunting Gate, Hitchin, Hertfordshire, SG4 0TJ

      IIF 1
  • Osborne, Mark Jonathan
    British born in March 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 7 Regis Place, Bergen Way, King's Lynn, PE30 2JN

      IIF 2 IIF 3
    • 7, Regis Place, Bergen Way, King's Lynn, PE30 2JN, England

      IIF 4 IIF 5
  • Osborne, Mark Jonathan
    British director born in March 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 172, Brook Drive, Milton Park, Milton, Abingdon, Oxfordshire, OX14 4SD, England

      IIF 6
  • Osborne, Mark Jonathan
    British managing director born in March 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Clewer Hill Road, Windsor, Berkshire, SL4 4AA

      IIF 7
  • Osborne, Mark Jonathan
    British president born in March 1975

    Resident in United States

    Registered addresses and corresponding companies
    • Misbourne Court, Rectory Way, Amersham, Buckinghamshire, HP7 0DE, United Kingdom

      IIF 8
  • Mr Mark Jonathan Osborne
    British born in March 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Clewer Hill Road, Windsor, Berkshire, SL4 4AA

      IIF 9
child relation
Offspring entities and appointments 8
  • 1
    CROWCON DETECTION INSTRUMENTS LIMITED
    - now 00978878
    CROWCON INSTRUMENTS LIMITED - 1992-01-08
    CROWCON (INSTRUMENTS) LIMITED - 1986-10-10
    172 Brook Drive, Milton Park, Milton, Abingdon, Oxfordshire
    Active Corporate (41 parents)
    Officer
    2010-12-01 ~ 2014-12-01
    IIF 6 - Director → ME
  • 2
    FFE LIMITED
    - now 01192710 01679486
    FIRE FIGHTING ENTERPRISES LIMITED
    - 2015-01-13 01192710 01679486
    FIRST TECHNOLOGY FIRE AND SAFETY LIMITED - 1997-11-21
    FIRE FIGHTING ENTERPRISES (U.K.) LIMITED - 1991-05-10
    FIRE FIGHTING EQUIPMENT LIMITED - 1986-10-21
    PRIDEBREW LIMITED - 1986-04-08
    FIRE FIGHTING EQUIPMENT LIMITED - 1986-03-13
    FIRE FIGHTING ENTERPRISES (UK) LIMITED - 1986-02-01
    9 Hunting Gate, Hitchin, Hertfordshire
    Active Corporate (40 parents)
    Officer
    2014-09-10 ~ 2017-04-28
    IIF 1 - Director → ME
  • 3
    FIRETRACE INTERNATIONAL LIMITED
    06322924
    Misbourne Court, Rectory Way, Amersham, Buckinghamshire, United Kingdom
    Dissolved Corporate (12 parents)
    Officer
    2017-05-09 ~ dissolved
    IIF 8 - Director → ME
  • 4
    KBIOSERVICES LIMITED
    - now 03757709
    KAYBEE SYSTEMS LIMITED - 2000-07-21
    7 Regis Place, Bergen Way, King's Lynn, England
    Active Corporate (13 parents)
    Equity (Company account)
    128 GBP2024-11-30
    Officer
    2021-07-20 ~ now
    IIF 4 - Director → ME
  • 5
    KBIOSYSTEMS LIMITED
    - now 02389004
    KAYBEE ENGINEERING LIMITED - 2000-07-21
    7 Regis Place, Bergen Way, King's Lynn, England
    Active Corporate (12 parents)
    Equity (Company account)
    1,888,000 GBP2024-11-30
    Officer
    2021-07-20 ~ now
    IIF 5 - Director → ME
  • 6
    KEELER LIMITED
    - now 00408759
    KEELER OPTICAL PRODUCTS LIMITED - 1983-12-12
    Clewer Hill Road, Windsor, Berkshire
    Active Corporate (49 parents, 1 offspring)
    Officer
    2021-02-18 ~ 2021-04-28
    IIF 7 - Director → ME
    Person with significant control
    2021-02-18 ~ 2021-04-28
    IIF 9 - Right to appoint or remove directors OE
  • 7
    PORVAIR SCIENCES LIMITED
    - now 02047818
    PORVAIR FILTRONICS LIMITED - 1996-09-17
    POLYFILTRONICS LIMITED - 1993-07-20
    SPEYDYNE LIMITED - 1987-01-14
    7 Regis Place, Bergen Way, King's Lynn
    Active Corporate (19 parents)
    Officer
    2021-07-23 ~ now
    IIF 3 - Director → ME
  • 8
    SEAL ANALYTICAL LIMITED
    - now 04008521
    SYNERMED ENVIRONMENTAL & ANALYTICAL LIMITED - 2003-05-21
    ANGLOBONUS LIMITED - 2000-09-15
    7 Regis Place, Bergen Way, King's Lynn
    Active Corporate (22 parents)
    Equity (Company account)
    2,875,000 GBP2024-11-30
    Officer
    2021-07-20 ~ now
    IIF 2 - Director → ME

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