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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

Mr Duncan Stewart Brown

    Related profiles found in government register
  • Mr Duncan Stewart Brown
    British born in June 1961

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Brunel House, 11 The Promenade, Clifton, Bristol, BS8 3NG, United Kingdom

      IIF 1 IIF 2
    • 7, Howat Crescent, Irvine, Ayrshire, KA12 0LQ, United Kingdom

      IIF 3
  • Mr Duncan Stewart Brown
    British born in June 1961

    Resident in England

    Registered addresses and corresponding companies
    • Avaland House, 110 London Road, Apsley, Hemel Hempstead, Hertfordshire, HP3 9SD

      IIF 4
  • Brown, Duncan Stewart
    British company executive born in June 1961

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 7 Howat Crescent, Irvine, Ayrshire, KA12 0LQ

      IIF 5
  • Brown, Duncan Stewart
    British consultant born in June 1961

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Avaland House, 110 London Road, Apsley, Hemel Hempstead, Hertfordshire, HP3 9SD, United Kingdom

      IIF 6
  • Brown, Duncan Stewart
    British director born in June 1961

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Brunel House, 11 The Promenade, Clifton, Bristol, BS8 3NG, United Kingdom

      IIF 7 IIF 8
    • 7 Howat Crescent, Irvine, Ayrshire, KA12 0LQ

      IIF 9
child relation
Offspring entities and appointments 5
  • 1
    AVALON SYNERGISTICS LIMITED
    09081285
    Avaland House, 110 London Road, Apsley, Hemel Hempstead, Hertfordshire
    Dissolved Corporate (3 parents)
    Officer
    2014-06-11 ~ dissolved
    IIF 6 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 4 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 4 - Ownership of shares – More than 25% but not more than 50% OE
  • 2
    DSB TECHNOLOGY LIMITED
    SC251825
    C/o Howat Andrew & Co., 11 Piersland Place, Irvine
    Dissolved Corporate (4 parents)
    Officer
    2003-06-26 ~ dissolved
    IIF 5 - Director → ME
  • 3
    SIERRA BRAVO INVESTMENTS LIMITED
    11534250
    Brunel House 11 The Promenade, Clifton, Bristol, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    2018-08-23 ~ dissolved
    IIF 8 - Director → ME
    Person with significant control
    2018-08-23 ~ dissolved
    IIF 2 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 2 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 4
    STA SYSTEMS LIMITED
    07020514
    Redland House 157 Redland Road, Redland, Bristol
    Dissolved Corporate (4 parents)
    Officer
    2009-09-16 ~ dissolved
    IIF 9 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 3 - Ownership of shares – More than 25% but not more than 50% OE
  • 5
    SYSTEMS DESIGN AND ASSESSMENT LIMITED
    14461417
    Brunel House 11 The Promenade, Clifton, Bristol, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    2022-11-04 ~ dissolved
    IIF 7 - Director → ME
    Person with significant control
    2022-11-04 ~ dissolved
    IIF 1 - Ownership of voting rights - More than 50% but less than 75% OE
    IIF 1 - Ownership of shares – More than 50% but less than 75% OE
    IIF 1 - Right to appoint or remove directors OE

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