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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

Obrien, Michael John

    Related profiles found in government register
  • Obrien, Michael John
    British investment banker born in October 1953

    Registered addresses and corresponding companies
  • O'brien, Michael John
    born in October 1953

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Castle Point, Sandhills Road, Salcombe, TQ8 8JP

      IIF 7
  • O'brien, Michael John
    British retired born in October 1953

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Castle Point, Sandhills Road, Salcombe, Devon, TQ8 8JP

      IIF 8
  • O Brien, Michael
    born in October 1953

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Castle Point, Sandhills Road, Salcombe, TQ8 8JP

      IIF 9
child relation
Offspring entities and appointments
Active 1
  • 1
    P&A LIMITED PARTNERS NO. 1 FUND LLP - 2003-09-19
    Fieldfisher Riverbank House, 2 Swan Lane, London, United Kingdom
    Active Corporate (106 parents)
    Officer
    2004-03-23 ~ now
    IIF 9 - LLP Member → ME
Ceased 8
  • 1
    GOLDMAN SACHS PROPERTY AND CASUALTY - 2013-05-15
    GOLDMAN SACHS LONGEVITY MARKETS (U.K.) - 2010-11-10
    J. ARON & COMPANY (U.K.) - 2008-08-12
    J. ARON & COMPANY (U.K.), LIMITED - 1991-12-02
    TRUSHELFCO (NO. 399) LIMITED - 1981-12-31
    10 Fleet Place, London
    Dissolved Corporate (3 parents)
    Officer
    1993-05-19 ~ 1995-06-05
    IIF 4 - Director → ME
  • 2
    FUSION 2003-3 LLP - 2004-06-18
    27/28 Eastcastle Street, London, United Kingdom
    Active Corporate (42 parents)
    Officer
    2004-09-28 ~ 2020-04-06
    IIF 7 - LLP Member → ME
  • 3
    J. ARON & COMPANY (BULLION) - 2008-10-10
    C/o Interpath Limited, 10 Fleet Place, London
    Dissolved Corporate (3 parents)
    Officer
    1991-07-10 ~ 1995-06-05
    IIF 2 - Director → ME
  • 4
    GOLDMAN SACHS HOLDINGS (U.K.) - 2014-07-31
    The Zenith Building, 26 Spring Gardens, Manchester
    Dissolved Corporate (6 parents)
    Officer
    1991-05-13 ~ 1995-06-05
    IIF 5 - Director → ME
  • 5
    TRUSHELFCO (NO.1266) LIMITED - 1988-09-21
    Plumtree Court, 25 Shoe Lane, London, United Kingdom
    Active Corporate (11 parents)
    Officer
    ~ 1996-11-29
    IIF 6 - Director → ME
  • 6
    GOLDMAN SACHS LIMITED - 1995-12-08
    FIRST DALLAS LIMITED - 1982-08-11
    FIRST INTERNATIONAL BANCSHARES LIMITED - 1979-12-31
    Plumtree Court, 25 Shoe Lane, London, United Kingdom
    Active Corporate (9 parents)
    Officer
    ~ 1995-08-03
    IIF 1 - Director → ME
  • 7
    HOTMULTI LIMITED - 1986-03-25
    The Zenith Building, 26 Spring Gardens, Manchester
    Dissolved Corporate (3 parents)
    Officer
    ~ 1996-11-29
    IIF 3 - Director → ME
  • 8
    Duke Court, Bridge Street, Kingsbridge, Devon, England
    Active Corporate (3 parents)
    Equity (Company account)
    18,140 GBP2024-10-31
    Officer
    1998-11-02 ~ 2000-08-01
    IIF 8 - Director → ME

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