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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

O'brien, Seamus Hamilton

    Related profiles found in government register
  • O'brien, Seamus Hamilton
    British born in June 1964

    Registered addresses and corresponding companies
    • Harbour Plaza 20 Tak Fung St, Hung Hom Kowloon, Hong Kong, Kowloon, Hong Kong

      IIF 1
  • O'brien, Seamus Hamilton
    British director born in June 1964

    Registered addresses and corresponding companies
    • 11-13 Knightsbridge 5 Flr, London, SW1X 7LY

      IIF 2
  • O'brien, Seamus Hamilton
    British marketing executive born in June 1964

    Registered addresses and corresponding companies
    • 15th Floor 1 Harbour Front, 18 Tak Fung Street, Hunghom, Kowloon, Hong Kong

      IIF 3 IIF 4
  • O'brien, Seamus Hamilton
    British sports marketing born in June 1964

    Registered addresses and corresponding companies
    • Harbour Plaza 20 Tak Fung St, Hung Hom Kowloon, Hong Kong, Kowloon, Hong Kong

      IIF 5
  • Obrien, Seamus Hamilton
    British director born in June 1964

    Registered addresses and corresponding companies
    • 16 Kendal Place, 61 Uppper Richmond Road, London, SW15 2QZ

      IIF 6 IIF 7
  • Obrien, Seamus Hamilton
    British park house corporation limited born in June 1964

    Registered addresses and corresponding companies
    • 16 Kendal Place, 61 Uppper Richmond Road, London, SW15 2QZ

      IIF 8
  • O'brien, Seamus Hamilton
    British born in June 1964

    Resident in Singapore

    Registered addresses and corresponding companies
    • Greens Court, West Street, Midhurst, GU29 9NQ, England

      IIF 9
    • Greens Court, West Street, Midhurst, West Sussex, GU29 9NQ, United Kingdom

      IIF 10
  • O'brien, Seamus
    British born in June 1964

    Resident in Singapore

    Registered addresses and corresponding companies
    • Greens Court, West Street, Midhurst, GU29 9NQ, United Kingdom

      IIF 11 IIF 12
    • Greens Court, West Street, Midhurst, West Sussex, GU29 9NQ, United Kingdom

      IIF 13
  • Mr Seamus O'brien
    British born in June 1964

    Resident in Singapore

    Registered addresses and corresponding companies
    • Greens Court, West Street, Midhurst, West Sussex, GU29 9NQ

      IIF 14
    • Greens Court, West Street, Midhurst, West Sussex, GU29 9NQ, United Kingdom

      IIF 15
  • Mr Seamus Hamilton O'brien
    British born in June 1964

    Resident in Singapore

    Registered addresses and corresponding companies
    • Greens Court, West Street, Midhurst, GU29 9NQ, England

      IIF 16
child relation
Offspring entities and appointments
Active 5
  • 1
    Greens Court, West Street, Midhurst, West Sussex
    Active Corporate (3 parents, 1 offspring)
    Equity (Company account)
    -475,189 GBP2024-12-31
    Officer
    2000-09-19 ~ now
    IIF 10 - Director → ME
    Person with significant control
    2016-07-01 ~ now
    IIF 14 - Ownership of shares – 75% or moreOE
  • 2
    Greens Court, West Street, Midhurst, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    -372,703 GBP2024-12-31
    Officer
    2017-04-28 ~ now
    IIF 11 - Director → ME
  • 3
    Greens Court, West Street, Midhurst, West Sussex, United Kingdom
    Active Corporate (2 parents)
    Officer
    2025-04-08 ~ now
    IIF 13 - Director → ME
    Person with significant control
    2025-04-08 ~ now
    IIF 15 - Right to appoint or remove directorsOE
    IIF 15 - Ownership of shares – 75% or moreOE
    IIF 15 - Ownership of voting rights - 75% or moreOE
  • 4
    Greens Court, West Street, Midhurst, England
    Active Corporate (2 parents, 1 offspring)
    Equity (Company account)
    -1,967,325 GBP2024-12-31
    Officer
    2018-10-19 ~ now
    IIF 9 - Director → ME
    Person with significant control
    2018-10-19 ~ now
    IIF 16 - Ownership of voting rights - 75% or moreOE
    IIF 16 - Right to appoint or remove directorsOE
    IIF 16 - Ownership of shares – 75% or moreOE
  • 5
    Greens Court, West Street, Midhurst, United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    -1,799 GBP2024-12-31
    Officer
    2021-04-03 ~ now
    IIF 12 - Director → ME
Ceased 8
  • 1
    OCTAGON CSI LIMITED - 2007-01-09
    C.S.I. LIMITED - 1999-12-17
    C.S.I. (SPORTS) LIMITED - 1984-03-05
    HOLDTREE LIMITED - 1978-12-31
    Hill House, 1 Little New Street, London
    Dissolved Corporate (4 parents)
    Officer
    ~ 1993-06-30
    IIF 6 - Director → ME
  • 2
    SPEED 7425 LIMITED - 1999-01-28
    4th Floor Friary Court, 13-21 High Street, Guildford, Surrey
    Dissolved Corporate (2 parents)
    Officer
    2001-06-01 ~ 2002-06-12
    IIF 4 - Director → ME
  • 3
    EUROPEAN LADIES' PROFESSIONAL GOLF ASSOCIATION LIMITED - 2000-07-18
    WOMEN PROFESSIONAL GOLFERS' EUROPEAN TOUR LIMITED - 1998-04-27
    W P G A EUROPEAN TOUR LIMITED - 1988-04-18
    DOWERMEN LIMITED - 1988-03-14
    Buckinghamshire Golf Club, Denham Court Drive, Denham, Buckinghamshire
    Active Corporate (8 parents)
    Officer
    1998-11-23 ~ 2002-09-26
    IIF 5 - Director → ME
  • 4
    SPEED 7276 LIMITED - 1999-03-17
    Buckinghamshire Golf Club, Denham Court Drive, Denham, Buckinghamshire
    Dissolved Corporate (2 parents)
    Equity (Company account)
    100 GBP2018-12-31
    Officer
    1999-07-09 ~ 2002-09-26
    IIF 2 - Director → ME
  • 5
    PARALLEL MEDIA GROUP PLC - 2017-12-22
    WORLD SPORT GROUP PLC - 2003-01-21
    ORCHARD FURNITURE PLC - 2001-08-16
    WYEFIELD GROUP PLC - 1999-01-06
    LINCOLN HOUSE PLC - 1994-08-03
    WILLIAM MORRIS FINE ARTS PUBLIC LIMITED COMPANY - 1988-05-09
    CEYLON & INDIAN PLANTERS HOLDINGS PUBLIC LIMITED COMPANY - 1984-04-24
    Frp Advisory Trading Limited, Jupiter House Warley Hill Business Park, The Drive, Brentwood, Essex
    Liquidation Corporate (2 parents, 16 offsprings)
    Officer
    2001-08-15 ~ 2003-01-21
    IIF 1 - Director → ME
  • 6
    LAGARDÈRE SPORTS MEDIA LIMITED - 2020-05-29
    SPORTS MARKETING & MANAGEMENT (U.K.) LIMITED - 2017-01-16
    SPEED 7426 LIMITED - 1999-01-28
    2nd Floor, 1 Bedford Street, London, England
    Dissolved Corporate (2 parents)
    Officer
    2001-06-01 ~ 2002-06-12
    IIF 3 - Director → ME
  • 7
    CSI RUGBY LIMITED - 1995-08-08
    TWINCLEAR LIMITED - 1989-06-19
    1st Floor, 47a Frith Street Soho, London
    Active Corporate (3 parents)
    Equity (Company account)
    -3,963,125 GBP2024-04-30
    Officer
    ~ 1995-07-30
    IIF 7 - Director → ME
  • 8
    WORLD WIDE SOCCER LIMITED - 1987-08-04
    OUTERZOOM LIMITED - 1986-12-12
    5b Edward Vii Quay, Navigation Way, Ashton On Ribble, Preston
    Dissolved Corporate (2 parents)
    Officer
    ~ 1991-10-29
    IIF 8 - Director → ME

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