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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

Mr Stephen Deckoff

    Related profiles found in government register
  • Mr Stephen Deckoff
    American born in November 1965

    Resident in United States

    Registered addresses and corresponding companies

    • icon of address C/o Black Diamond Advisors Lllp, 5330 Yacht Haven Grande, Suite 100, Us Virgin Islands, 00802, United States

      IIF 1 IIF 2

    • icon of address C/o Black Diamond Advisors Lllp, 5330 Yacht Haven Grande, Suite 100, Us Virgin Islands, United States

      IIF 3 IIF 4 IIF 5
  • Mr Stephen Henry Deckoff
    American born in November 1965

    Resident in United States

    Registered addresses and corresponding companies

    • icon of address 4th Floor, 115 George Street, Edinburgh, EH2 4JN, Scotland

      IIF 6

    • icon of address 16 Berkeley Street, 16 Berkeley Street, London, W1J 8DZ, England

      IIF 7

    • icon of address C/o Black Diamond Advisors Lllp, 5330 Yacht Haven Grande, Suite 100, St. John, Us Virgin Islands, 00802, United States

      IIF 8

    • icon of address C/o Black Diamond Advisors Llp, 5330 Yacht Haven Grande, Suite 100, Us Virgin Islands, United States

      IIF 9
  • Stephen Henry Deckoff
    American born in November 1965

    Resident in United States

    Registered addresses and corresponding companies

    • icon of address One Sound Shore Drive, Suite 200, Greenwich Ct 06830, United States

      IIF 10 IIF 11
  • Deckoff, Stephen Henry
    American born in November 1965

    Resident in United States

    Registered addresses and corresponding companies

    • icon of address 16 Berkeley Street, 16 Berkeley Street, London, W1J 8DZ, England

      IIF 12
  • Deckoff, Stephen Henry
    American managing principal born in November 1965

    Resident in United States

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments
Active 8
  • 1
    GSC PARTNERS EUROPE LIMITED - 2006-10-09
    IBIS (543) LIMITED - 2000-01-25
    GSC GROUP LIMITED - 2011-10-31
    BLACK DIAMOND CAPITAL MANAGEMENT LIMITED - 2025-08-07
    icon of address 16 Berkeley Street 16 Berkeley Street, London, England
    Active Corporate (6 parents)
    Equity (Company account)
    3,247,126 GBP2023-12-31
    Officer
    icon of calendar 2011-10-17 ~ now
    IIF 12 - Director → ME
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    IIF 7 - Has significant influence or control → OE
  • 2
    icon of address 54 Willow Lane, Mitcham, Surrey, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    0 GBP2024-12-31
    Person with significant control
    icon of calendar 2021-09-28 ~ now
    IIF 1 - Has significant influence or control → OE
  • 3
    icon of address 54 Willow Lane, Mitcham, Surrey, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    0 GBP2024-12-31
    Person with significant control
    icon of calendar 2021-09-28 ~ now
    IIF 2 - Has significant influence or control → OE
  • 4
    icon of address 54 Willow Lane, Mitcham, Surrey, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    0 GBP2024-12-31
    Person with significant control
    icon of calendar 2021-10-05 ~ now
    IIF 8 - Has significant influence or control → OE
  • 5
    icon of address C/o Black Diamond Capital Management, 68 Pall Mall, 4th Floor, London, United Kingdom
    Dissolved Corporate (2 parents)
    Person with significant control
    icon of calendar 2021-06-25 ~ dissolved
    IIF 5 - Has significant influence or control → OE
  • 6
    icon of address 54 Willow Lane, Mitcham, Surrey, United Kingdom
    Active Corporate (5 parents, 3 offsprings)
    Person with significant control
    icon of calendar 2021-06-24 ~ now
    IIF 4 - Has significant influence or control → OE
  • 7
    icon of address C/o Black Diamond Capital Management, 68 Pall Mall, 4th Floor, London, United Kingdom
    Dissolved Corporate (2 parents)
    Person with significant control
    icon of calendar 2021-06-23 ~ dissolved
    IIF 3 - Has significant influence or control → OE
  • 8
    icon of address 54 Willow Lane, Mitcham, Surrey, United Kingdom
    Active Corporate (7 parents, 1 offspring)
    Person with significant control
    icon of calendar 2021-11-02 ~ now
    IIF 9 - Has significant influence or control → OE
Ceased 4
  • 1
    FUSION UK HOLDING LTD. - 2021-04-23
    icon of address Bakelite Synthetics Sully Moors Road, Sully, Penarth, Wales
    Active Corporate (6 parents, 3 offsprings)
    Officer
    icon of calendar 2020-08-16 ~ 2020-12-11
    IIF 14 - Director → ME
    Person with significant control
    icon of calendar 2020-08-16 ~ 2020-12-03
    IIF 10 - Has significant influence or control → OE
  • 2
    FUSION UK INTERMEDIATE LTD. - 2021-04-23
    icon of address Bakelite Synthetics Sully Moors Road, Sully, Penarth, Wales
    Active Corporate (4 parents, 1 offspring)
    Officer
    icon of calendar 2020-10-13 ~ 2020-12-11
    IIF 13 - Director → ME
  • 3
    FUSION UK HOLDCO LTD. - 2021-04-23
    icon of address Bakelite Synthetics Sully Moors Road, Sully, Penarth, Wales
    Active Corporate (7 parents, 1 offspring)
    Officer
    icon of calendar 2020-10-07 ~ 2020-12-11
    IIF 15 - Director → ME
    Person with significant control
    icon of calendar 2020-10-07 ~ 2021-04-28
    IIF 11 - Has significant influence or control → OE
  • 4
    INTEGRATED COMMUNICATIONS AND ENGINEERING LIMITED - 1999-04-23
    icon of address 4th Floor 115 George Street, Edinburgh, Scotland
    Active Corporate (3 parents, 1 offspring)
    Person with significant control
    icon of calendar 2020-10-19 ~ 2021-03-11
    IIF 6 - Ownership of shares – 75% or more → OE
    IIF 6 - Ownership of voting rights - 75% or more → OE

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