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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.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Mason, Stephen John

    Related profiles found in government register
  • Mason, Stephen John
    born in May 1968

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 10, Queen Street Place, London, EC4R 1AG, United Kingdom

      IIF 1
  • Mason, Stephen John
    born in May 1968

    Registered addresses and corresponding companies
    • 6th Floor, 25 Farringdon Street, London, EC4A 4AB

      IIF 2 IIF 3
child relation
Offspring entities and appointments 3
  • 1
    HAYSMAC LLP
    - now OC423459 15820193
    HAYSMACINTYRE LLP - 2024-11-18
    10 Queen Street Place, London, United Kingdom
    Active Corporate (54 parents, 3 offsprings)
    Officer
    2025-10-01 ~ now
    IIF 1 - LLP Member → ME
  • 2
    RSM UK CORPORATE FINANCE LLP
    - now OC325347
    RSM CORPORATE FINANCE LLP
    - 2021-11-01 OC325347 09690707
    BAKER TILLY CORPORATE FINANCE LLP
    - 2015-10-26 OC325347 09690707... (more)
    6th Floor 25 Farringdon Street, London
    Active Corporate (117 parents)
    Officer
    2007-08-01 ~ 2024-12-31
    IIF 2 - LLP Member → ME
  • 3
    RSM UK TAX AND ADVISORY SERVICES LLP
    - now OC325348 09690778
    RSM TAX AND ADVISORY SERVICES LLP
    - 2021-11-01 OC325348 09690778
    BAKER TILLY TAX AND ADVISORY SERVICES LLP
    - 2015-10-26 OC325348 09690778
    6th Floor 25 Farringdon Street, London
    Active Corporate (844 parents)
    Officer
    2007-08-01 ~ 2024-12-31
    IIF 3 - LLP Member → ME

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.