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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

Byrne, Mark James

    Related profiles found in government register
  • Byrne, Mark James
    Irish insurance executive born in November 1961

    Resident in Switzerland

    Registered addresses and corresponding companies
    • icon of address 1st Floor Swan Building, 26 Victoria Street, Hamilton, HM HX, Bermuda

      IIF 1
  • Byrne, Mark James
    Irish company director born in November 1961

    Resident in Bermuda

    Registered addresses and corresponding companies
    • icon of address 51, Lafone Street, London, SE1 2LX, England

      IIF 2
  • Byrne, Mark James
    Irish director born in November 1961

    Resident in Bermuda

    Registered addresses and corresponding companies
    • icon of address Roughill, 6 Long Lane, Tuckers Town, HS02, Bermuda

      IIF 3
  • Byrne, Mark James
    Irish investment manager born in November 1961

    Resident in Bermuda

    Registered addresses and corresponding companies
    • icon of address 6 Long Lane, Tuckers Town, Hs 02, Bermuda

      IIF 4
    • icon of address Roughill, 6 Long Lane, Tuckers Town, HS02, Bermuda

      IIF 5
  • Byrne, Mark James
    Irish reinsurance executive born in November 1961

    Resident in Bermuda

    Registered addresses and corresponding companies
    • icon of address Roughill, 6 Long Lane, Tuckers Town, HS02, Bermuda

      IIF 6 IIF 7
child relation
Offspring entities and appointments
Active 1
  • 1
    icon of address 209 Tower Bridge Business Centre, 46-48 East Smithfield, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-02-18 ~ dissolved
    IIF 1 - Director → ME
Ceased 6
  • 1
    ANV CENTRAL BUREAU OF SERVICES LIMITED - 2017-09-19
    ANV UNDERWRITERS (UK) LIMITED - 2013-01-16
    MOSAIC UNDERWRITING SERVICES (UK) LIMITED - 2012-09-17
    FLAGSTONE SERVICES (UK) LIMITED - 2010-08-31
    MOLEGREEN LIMITED - 2009-06-09
    icon of address Exchequer Court, 33 St Mary Axe, London, England
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2009-06-08 ~ 2010-05-24
    IIF 4 - Director → ME
  • 2
    FLAGSTONE CORPORATE NAME LIMITED - 2012-08-20
    icon of address Exchequer Court, 33 St Mary Axe, London, England
    Active Corporate (3 parents)
    Officer
    icon of calendar 2008-09-30 ~ 2010-05-24
    IIF 6 - Director → ME
  • 3
    FLAGSTONE HOLDINGS (UK) LIMITED - 2012-08-20
    icon of address Exchequer Court, 33 St Mary Axe, London, United Kingdom
    Dissolved Corporate (3 parents, 1 offspring)
    Officer
    icon of calendar 2007-11-20 ~ 2010-05-24
    IIF 7 - Director → ME
  • 4
    FLAGSTONE SYNDICATE MANAGEMENT LIMITED - 2012-08-20
    MARLBOROUGH UNDERWRITING AGENCY LIMITED - 2010-05-04
    BARDER & MARSH LIMITED - 1995-12-30
    BARDER & MARSH SERVICES LIMITED - 1991-12-20
    icon of address Exchequer Court, 33 St Mary Axe, London, England
    Dissolved Corporate (3 parents, 36 offsprings)
    Officer
    icon of calendar 2008-11-18 ~ 2010-05-24
    IIF 3 - Director → ME
  • 5
    WEST END CAPITAL MANAGEMENT (UK) LIMITED - 2006-03-16
    icon of address Woolgate Exchange, 25 Basinghall Street, London, United Kingdom
    Dissolved Corporate (1 parent)
    Officer
    icon of calendar 2005-06-01 ~ 2010-05-24
    IIF 5 - Director → ME
  • 6
    icon of address Chown Dewhurst Llp, 51 Lafone Street, London
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2010-09-01 ~ 2014-03-17
    IIF 2 - Director → ME

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Contains public sector information retrieved at 26 August 2025 and licensed under the Open Government Licence v3.0.