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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

Colquhoun, James Arthur

    Related profiles found in government register
  • Colquhoun, James Arthur
    British born in June 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 15, Bonhill Street, London, EC2A 4DN

      IIF 1
    • 15, Bonhill Street, London, EC2A 4DN, England

      IIF 2 IIF 3 IIF 4
    • 15, Bonhill Street, London, EC2A 4DN, United Kingdom

      IIF 5 IIF 6
    • Enterprise Centre, Whiteknights Road, Reading, RG6 6BU

      IIF 7
  • Colquhoun, James Arthur
    British business executive born in June 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Shropshire House, 11 - 20 Capper Street, London, WC1E 6JA

      IIF 8 IIF 9
    • Shropshire House, 11-20 Capper Street, London, WC1E 6JA

      IIF 10 IIF 11
    • No 1, Dorset Street, Southampton, Hampshire, SO15 2DP

      IIF 12 IIF 13
  • Colquhoun, James Arthur
    British cfo born in June 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Birchin Court, 20 Birchin Lane, London, EC3V 9DU

      IIF 14
  • Colquhoun, James Arthur
    British chief financial officer born in June 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 1, Lochrin Square, 92-98 Fountainbridge, Edinburgh, EH3 9QA, United Kingdom

      IIF 15 IIF 16
    • 15, Bonhill Street, London, EC2A 4DN

      IIF 17
    • 15, Bonhill Street, London, EC2A 4DN, England

      IIF 18 IIF 19 IIF 20
    • Level 6, 15 Bonhill Street, London, EC2A 4DN, United Kingdom

      IIF 21
  • Colquhoun, James Arthur
    British finance director born in June 1975

    Registered addresses and corresponding companies
    • 29 Mablethorpe Road, London, SW6 6AQ

      IIF 22
  • Colquhoun, James Arthur

    Registered addresses and corresponding companies
    • 29 Mablethorpe Road, London, SW6 6AQ

      IIF 23
child relation
Offspring entities and appointments
Active 17
  • 1
    PLATFORM-A INTERNATIONAL LIMITED - 2009-09-30
    ADVERTISING.COM INTERNATIONAL LIMITED - 2008-09-30
    TIMECYBER LIMITED - 2000-09-07
    No 1 Dorset Street, Southampton, Hampshire
    Dissolved Corporate (2 parents)
    Officer
    2012-04-06 ~ dissolved
    IIF 13 - Director → ME
  • 2
    No 1 Dorset Street, Southampton, Hampshire
    Dissolved Corporate (2 parents)
    Officer
    2012-03-31 ~ dissolved
    IIF 12 - Director → ME
  • 3
    NET AGENT INTERNATIONAL LIMITED - 2001-09-17
    15 Bonhill Street, London, United Kingdom
    Active Corporate (2 parents)
    Officer
    2023-12-13 ~ now
    IIF 5 - Director → ME
  • 4
    15 Bonhill Street, London, England
    Active Corporate (2 parents, 9 offsprings)
    Officer
    2023-12-13 ~ now
    IIF 2 - Director → ME
  • 5
    15 Bonhill Street, London, England
    Active Corporate (2 parents, 1 offspring)
    Officer
    2023-12-13 ~ now
    IIF 3 - Director → ME
  • 6
    22 Grenville Street, St Helier, Je48px, Jersey
    Active Corporate (7 parents)
    Officer
    2023-12-01 ~ now
    IIF 21 - Director → ME
  • 7
    15 Bonhill Street, London, England
    Active Corporate (2 parents)
    Officer
    2023-12-13 ~ now
    IIF 4 - Director → ME
  • 8
    15 Bonhill Street, London, United Kingdom
    Active Corporate (2 parents, 1 offspring)
    Officer
    2023-12-13 ~ now
    IIF 6 - Director → ME
  • 9
    15 Bonhill Street, London
    Active Corporate (3 parents)
    Officer
    2023-12-13 ~ now
    IIF 17 - Director → ME
  • 10
    ITRS GROUP PLC - 2011-09-20
    ITRS GROUP LIMITED - 2003-11-04
    INTERNATIONAL TRADING ROOM SOFTWARE GROUP LTD. - 2002-01-17
    INTERNATIONAL TRADING ROOM SOFTWARE LIMITED - 1997-12-12
    MICROTEAM PROJECTS LIMITED - 1995-11-15
    15 Bonhill Street, London
    Active Corporate (2 parents, 1 offspring)
    Officer
    2023-12-13 ~ now
    IIF 1 - Director → ME
  • 11
    SUMERIAN HOLDINGS LIMITED - 2018-08-06
    1 Lochrin Square, 92-98 Fountainbridge, Edinburgh, United Kingdom
    Active Corporate (3 parents)
    Officer
    2023-12-13 ~ now
    IIF 16 - Director → ME
  • 12
    SUMERIAN EUROPE LIMITED - 2018-08-06
    SUMERIAN NETWORKS LIMITED - 2007-06-11
    FINANCIAL NETWORKS LIMITED - 2001-11-29
    1 Lochrin Square, 92-98 Fountainbridge, Edinburgh, United Kingdom
    Active Corporate (3 parents)
    Officer
    2023-12-13 ~ now
    IIF 15 - Director → ME
  • 13
    15 Bonhill Street, London, England
    Active Corporate (3 parents)
    Officer
    2023-12-13 ~ now
    IIF 18 - Director → ME
  • 14
    15 Bonhill Street, London, England
    Active Corporate (3 parents)
    Officer
    2023-12-13 ~ now
    IIF 20 - Director → ME
  • 15
    15 Bonhill Street, London, England
    Active Corporate (3 parents)
    Officer
    2023-12-13 ~ now
    IIF 19 - Director → ME
  • 16
    OPSERA LIMITED - 2012-02-22
    NOMINOS LIMITED - 2005-04-20
    Enterprise Centre, Whiteknights Road, Reading
    Active Corporate (2 parents, 1 offspring)
    Profit/Loss (Company account)
    559,232 GBP2017-03-01 ~ 2018-02-28
    Officer
    2023-12-13 ~ now
    IIF 7 - Director → ME
  • 17
    Shropshire House, 11 - 20 Capper Street, London
    Dissolved Corporate (2 parents)
    Officer
    2012-04-06 ~ dissolved
    IIF 8 - Director → ME
Ceased 5
  • 1
    No 1 Dorset Street, Southampton, Hampshire
    Dissolved Corporate (3 parents)
    Officer
    2012-03-23 ~ 2014-04-11
    IIF 9 - Director → ME
  • 2
    PLATFORM-A INTERNATIONAL HOLDINGS LIMITED - 2009-09-23
    30 Finsbury Square, London
    Dissolved Corporate (2 parents)
    Officer
    2012-04-06 ~ 2014-04-11
    IIF 11 - Director → ME
  • 3
    Birchin Court, 20 Birchin Lane, London
    Dissolved Corporate (3 parents)
    Officer
    2015-02-06 ~ 2018-09-27
    IIF 14 - Director → ME
  • 4
    No 1 Dorset Street, Southampton, Hampshire
    Dissolved Corporate (3 parents)
    Officer
    2012-03-22 ~ 2014-04-11
    IIF 10 - Director → ME
  • 5
    MOBILE STREAMS LIMITED - 2006-02-01
    MOBILE LIFESTREAMS LIMITED - 2001-07-16
    125 Wood Street, London, United Kingdom
    Active Corporate (5 parents, 3 offsprings)
    Officer
    2007-05-22 ~ 2009-09-01
    IIF 22 - Director → ME
    2007-05-22 ~ 2009-09-15
    IIF 23 - Secretary → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.