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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

Mai, Mark Francis

child relation
Offspring entities and appointments 11
  • 1
    BRITISH AMERICAN OFFSHORE LIMITED
    - now 01937517
    ROWAN NORTH SEA LIMITED - 1985-12-02
    Cannon Place, 78 Cannon Street, London, England
    Dissolved Corporate (26 parents)
    Officer
    2017-05-18 ~ 2019-06-15
    IIF 11 - Secretary → ME
  • 2
    ROWAN (UK) RELENTLESS LIMITED
    08592413
    Cannon Place, 78 Cannon Street, London
    Dissolved Corporate (15 parents)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 6 - Secretary → ME
  • 3
    ROWAN (UK) RELIANCE LIMITED
    - now 08592391
    ROWAN (UK) RELIANT LIMITED - 2013-07-01
    Cannon Place, 78 Cannon Street, London
    Dissolved Corporate (15 parents)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 3 - Secretary → ME
  • 4
    ROWAN (UK) RENAISSANCE LIMITED
    08592395
    Cannon Place, 78 Cannon Street, London
    Dissolved Corporate (15 parents)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 4 - Secretary → ME
  • 5
    ROWAN (UK) RESOLUTE LIMITED
    08592390
    Cannon Place, 78 Cannon Street, London
    Dissolved Corporate (15 parents)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 2 - Secretary → ME
  • 6
    ROWAN COMPANIES LIMITED - now
    ROWAN COMPANIES PLC
    - 2019-06-20 07805263
    ROWAN COMPANIES LIMITED - 2012-05-01
    Lynton House 7-12 Tavistock Square, London
    Dissolved Corporate (32 parents, 9 offsprings)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 8 - Secretary → ME
  • 7
    ROWAN DRILLING (UK) LIMITED
    SC061864
    1 West Regent Street, Glasgow, United Kingdom
    Liquidation Corporate (27 parents)
    Officer
    2017-05-18 ~ 2019-06-15
    IIF 1 - Secretary → ME
  • 8
    ROWAN DRILLING US LIMITED
    08140883
    Cannon Place, 78 Cannon Street, London
    Dissolved Corporate (12 parents)
    Officer
    2017-05-18 ~ dissolved
    IIF 5 - Secretary → ME
  • 9
    ROWAN NO.1 LIMITED
    08026104 08026111
    Lynton House, 7-12 Tavistock Square, London
    Dissolved Corporate (22 parents, 2 offsprings)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 10 - Secretary → ME
  • 10
    ROWAN NO.2 LIMITED
    08026111 08026104
    Lynton House, 7-12 Tavistock Square, London
    Dissolved Corporate (21 parents)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 9 - Secretary → ME
  • 11
    ROWAN UK RENAISSANCE ONSHORE LIMITED
    08608198
    Cannon Place, 78 Cannon Street, London
    Dissolved Corporate (14 parents)
    Officer
    2017-05-18 ~ 2019-04-11
    IIF 7 - Secretary → ME

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