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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

Rubenstein, Ari M

    Related profiles found in government register
  • Rubenstein, Ari M
    American born in January 1972

    Resident in England

    Registered addresses and corresponding companies
    • 5 C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St.paul, London, London, United Kingdom, EC2V 6AA

      IIF 1
    • 5 Cheapside, C/o Argyll Management Limited, 5 Cheapside, Office 508, St. Paul, London, United Kingdom, EC2V 6AA, England

      IIF 2
  • Rubenstein, Ari
    American born in January 1972

    Resident in United States

    Registered addresses and corresponding companies
    • 40, (38th Floor), Wall Street, New York, New York, 10005, United States

      IIF 3
    • 5 Cheapside, C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St. Paul, London, United Kingdom, EC2V 6AA, England

      IIF 4
  • Rubenstein, Ari
    born in January 1972

    Resident in United States

    Registered addresses and corresponding companies
    • Simpson Thacher & Bartlett, 1, Citypoint, Ropemaker Street, London, EC2Y 9HU, United Kingdom

      IIF 5
  • Mr Ari M Rubenstein
    American born in January 1972

    Resident in England

    Registered addresses and corresponding companies
    • 5 C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St.paul, London, London, United Kingdom, EC2V 6AA

      IIF 6
  • Ari Rubenstein
    American born in January 1972

    Resident in United States

    Registered addresses and corresponding companies
    • 40, (38th Floor), Wall Street, New York, New York, 10005, United States

      IIF 7
  • Mr Ari Rubenstein
    American born in January 1972

    Resident in United States

    Registered addresses and corresponding companies
    • Simpson Thacher & Bartlett, 1, Citypoint, Ropemaker Street, London, EC2Y 9HU, United Kingdom

      IIF 8
    • 5 Cheapside, C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St. Paul, London, United Kingdom, EC2V 6AA, England

      IIF 9
child relation
Offspring entities and appointments
Active 5
  • 1
    COBALT INVESTMENT PARTNERS LIMITED
    15373193 OC450580
    5 C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St.paul, London, London, United Kingdom
    Active Corporate (2 parents, 1 offspring)
    Officer
    2023-12-28 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2023-12-28 ~ now
    IIF 6 - Ownership of voting rights - 75% or moreOE
    IIF 6 - Ownership of shares – 75% or moreOE
    IIF 6 - Right to appoint or remove directorsOE
  • 2
    COBALT INVESTMENTS PARTNERS LLP
    OC450580 15373193
    5 C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St. Paul, London, London, United Kingdom
    Active Corporate (4 parents)
    Person with significant control
    2024-01-11 ~ now
    IIF 8 - Right to surplus assets - More than 25% but not more than 50%OE
    IIF 8 - Ownership of voting rights - More than 25% but not more than 50%OE
  • 3
    GTS DIGITAL UK LIMITED
    - now 14253623
    RADKL UK LIMITED
    - 2023-05-05 14253623
    5 Cheapside Octagon Point- 5 Cheapside, Offices 507, 508, St. Paul, London, United Kingdom, England
    Active Corporate (2 parents)
    Equity (Company account)
    0 GBP2024-12-31
    Officer
    2022-07-25 ~ now
    IIF 3 - Director → ME
    Person with significant control
    2022-07-25 ~ now
    IIF 7 - Ownership of shares – More than 25% but not more than 50%OE
  • 4
    GTS SECURITIES EUROPE LTD
    09148018
    5 Cheapside C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St. Paul, London, United Kingdom, England
    Active Corporate (3 parents, 1 offspring)
    Equity (Company account)
    1,209,027 GBP2024-12-31
    Officer
    2014-07-25 ~ now
    IIF 4 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 9 - Has significant influence or control over the trustees of a trustOE
    IIF 9 - Has significant influence or control as a member of a firmOE
    IIF 9 - Has significant influence or controlOE
  • 5
    MCGILL GLOBAL LIMITED
    14343336
    5 Cheapside C/o Argyll Management Limited, 5 Cheapside, Office 508, St. Paul, London, United Kingdom, England
    Active Corporate (3 parents)
    Equity (Company account)
    13,372 GBP2024-09-30
    Officer
    2024-03-05 ~ now
    IIF 2 - Director → ME
Ceased 1
  • 1
    COBALT INVESTMENTS PARTNERS LLP
    OC450580 15373193
    5 C/o Argyll Management Limited, 5 Cheapside, Offices 507-508, St. Paul, London, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2024-01-11 ~ 2025-07-29
    IIF 5 - LLP Designated Member → ME

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