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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

Irwin, Mark Winston

    Related profiles found in government register
  • Irwin, Mark Winston
    Australian born in March 1965

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Ferndown The Heath, Oxford Road, Frilford, Abingdon, Oxfordshire, OX13 5NW, United Kingdom

      IIF 1
  • Irwin, Mark Winston
    Australian director born in March 1965

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Serco House, 16 Bartley Wood Business Park, Bartley Way Hook, Hampshire, RG27 9UY

      IIF 2 IIF 3 IIF 4
    • Serco House, 16 Bartley Wood Business Park, Bartley Way, Hook, RG27 9UY, England

      IIF 5
  • Irwin, Mark Winston
    Australian born in March 1965

    Resident in England

    Registered addresses and corresponding companies
    • 264, Banbury Road, Oxford, OX2 7DY, England

      IIF 6
  • Mr Mark Winston Irwin
    Australian born in March 1965

    Resident in England

    Registered addresses and corresponding companies
    • 264, Banbury Road, Oxford, OX2 7DY, England

      IIF 7
child relation
Offspring entities and appointments 6
  • 1
    BELLATOR ADVISORY SERVICES LIMITED
    17034814
    264 Banbury Road, Oxford, England
    Active Corporate (2 parents)
    Officer
    2026-02-16 ~ now
    IIF 6 - Director → ME
    Person with significant control
    2026-02-16 ~ now
    IIF 7 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 7 - Ownership of shares – More than 25% but not more than 50% OE
  • 2
    SERCO GROUP PLC
    - now 02048608
    DEALMOVE PLC - 1987-07-29
    Serco House, 16 Bartley Wood Business Park, Bartley Way Hook, Hampshire
    Active Corporate (55 parents, 1 offspring)
    Officer
    2023-01-01 ~ 2025-02-28
    IIF 4 - Director → ME
  • 3
    SERCO HOLDINGS LIMITED
    - now 03970268
    SERCO GLOBAL PROJECTS LIMITED - 2001-11-27
    HIGHERNEXT LIMITED - 2000-05-19
    Serco House, 16 Bartley Wood Business Park, Bartley Way Hook, Hampshire
    Active Corporate (30 parents, 23 offsprings)
    Officer
    2021-04-14 ~ 2023-01-01
    IIF 2 - Director → ME
  • 4
    SERCO LIMITED
    - now 00242246 NF003703
    R.C.A.LIMITED - 1987-07-29
    Serco House, 16 Bartley Wood Business Park, Bartley Way Hook, Hampshire
    Active Corporate (84 parents, 7 offsprings)
    Officer
    2021-04-14 ~ 2023-01-01
    IIF 3 - Director → ME
  • 5
    THE HEATH (FRILFORD) LIMITED
    11391359
    Wenrisc House Meadow Court, High Street, Witney, United Kingdom
    Active Corporate (6 parents)
    Officer
    2023-01-11 ~ now
    IIF 1 - Director → ME
  • 6
    VIVO DEFENCE SERVICES LIMITED
    11952167
    First Floor, Neon Q10 Quorum Business Park, Benton Lane, Newcastle Upon Tyne, England
    Active Corporate (14 parents)
    Officer
    2021-07-22 ~ 2022-12-19
    IIF 5 - Director → ME

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