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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

Clark, Duncan Guy

    Related profiles found in government register
  • Clark, Duncan Guy
    British born in May 1968

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Sandforth, 66 Holtspur Top Lane, Beaconsfield, Buckinghamshire, HP9 1DT, United Kingdom

      IIF 1
    • 5 Howick Place, Howick Place, London, SW1P 1WG, England

      IIF 2
    • 5, Howick Place, London, SW1P 1WG

      IIF 3 IIF 4 IIF 5
    • 5, Howick Place, London, SW1P 1WG, England

      IIF 6 IIF 7
    • 5, Howick Place, London, SW1P 1WG, United Kingdom

      IIF 8
    • Orsted, 5, Howick Place, London, SW1P 1WG, United Kingdom

      IIF 9
    • The Conduit, 6 Langley Street, London, WC2H 9JA, England

      IIF 10
  • Clark, Duncan Guy
    British alternate director born in May 1968

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 11th Floor 140, London Wall, London, EC2Y 5DN

      IIF 11 IIF 12
  • Clark, Duncan Guy
    British company director born in May 1968

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Clark, Duncan Guy
    British programme director born in May 1968

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 5, Howick Place, London, SW1P 1WG

      IIF 23
    • 5, Howick Place, London, SW1P 1WG, England

      IIF 24
    • 5, Howick Place, London, SW1P 1WG, United Kingdom

      IIF 25 IIF 26
  • Clark, Duncan Guy
    British born in May 1968

    Resident in England

    Registered addresses and corresponding companies
  • Mr Duncan Guy Clark
    British born in May 1968

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Sandforth, 66 Holtspur Top Lane, Beaconsfield, Buckinghamshire, HP9 1DT, United Kingdom

      IIF 30
  • Clark, Duncan Guy
    British research engineer born in May 1968

    Registered addresses and corresponding companies
    • 4 St Peters Cottages, Broad Hinton, Swindon, SN4 9PA

      IIF 31
  • Clark, Duncan Guy
    British research engineer

    Registered addresses and corresponding companies
    • 4 St Peters Cottages, Broad Hinton, Swindon, SN4 9PA

      IIF 32
child relation
Offspring entities and appointments 30
  • 1
    BREESEA LIMITED
    - now 07883217
    SMART WIND SPC4 LIMITED - 2012-05-10
    5 Howick Place, London, England
    Active Corporate (39 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 24 - Director → ME
  • 2
    HORNSEA 1 LIMITED - now
    HERON WIND LIMITED
    - 2017-11-22 07640868
    5 Howick Place, London, England
    Active Corporate (47 parents, 2 offsprings)
    Officer
    2013-02-27 ~ 2014-01-29
    IIF 12 - Director → ME
  • 3
    HORNSEA PROJECT THREE (UK) LIMITED - now
    ORSTED HORNSEA PROJECT THREE (UK) LIMITED
    - 2026-03-16 08584210
    DONG ENERGY HORNSEA PROJECT THREE (UK) LIMITED - 2017-10-30
    SMART WIND SPC7 LIMITED - 2016-05-28
    5 Howick Place, London, England
    Active Corporate (34 parents)
    Officer
    2024-02-19 ~ 2025-10-14
    IIF 28 - Director → ME
  • 4
    HORNSEA THREE HOLDINGS LIMITED
    16034264
    5 Howick Place, London, United Kingdom
    Active Corporate (15 parents, 1 offspring)
    Officer
    2024-10-22 ~ 2025-10-14
    IIF 21 - Director → ME
  • 5
    HORNSEA TWO HOLDINGS LTD
    13796747 11120527
    5 Howick Place, London, England
    Active Corporate (26 parents, 3 offsprings)
    Officer
    2021-12-13 ~ 2022-09-29
    IIF 15 - Director → ME
  • 6
    HORNSEA TWO PSC LIMITED - now
    ORSTED HORNSEA TWO HOLDINGS LTD
    - 2025-01-03 13794536 11116433... (more)
    5 Howick Place, London, England
    Active Corporate (18 parents, 1 offspring)
    Officer
    2021-12-10 ~ 2022-09-29
    IIF 13 - Director → ME
  • 7
    NJORD LIMITED
    07640851
    5 Howick Place, London, England
    Dissolved Corporate (27 parents)
    Officer
    2013-02-27 ~ 2014-01-29
    IIF 11 - Director → ME
  • 8
    OPTIMUS WIND LIMITED
    - now 07883284
    SMART WIND SPC3 LIMITED - 2012-05-10
    5 Howick Place, London
    Active Corporate (41 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 23 - Director → ME
  • 9
    ORSTED (UK) LIMITED
    - now 06730824
    DONG ENERGY (UK) LIMITED - 2017-10-30
    DONG WIND (UK) II LIMITED - 2012-11-07
    5 Howick Place, London
    Active Corporate (22 parents)
    Officer
    2020-04-30 ~ 2025-03-18
    IIF 4 - Director → ME
  • 10
    ORSTED ENERGY SOLUTIONS (UK) LIMITED
    11111174
    5 Howick Place, London, United Kingdom
    Dissolved Corporate (13 parents)
    Officer
    2021-03-18 ~ dissolved
    IIF 19 - Director → ME
  • 11
    ORSTED HORNSEA PROJECT FOUR LIMITED
    - now 08584182
    SMART WIND SPC6 LIMITED - 2017-12-12
    5 Howick Place, London, England
    Active Corporate (25 parents)
    Officer
    2024-02-26 ~ 2025-12-04
    IIF 29 - Director → ME
  • 12
    ORSTED HORNSEA THREE HOLDINGS LIMITED
    16026965 13794536... (more)
    5 Howick Place, London, United Kingdom
    Active Corporate (9 parents, 2 offsprings)
    Officer
    2024-10-18 ~ 2025-10-14
    IIF 22 - Director → ME
  • 13
    ORSTED HORNSEA THREE PARENTCO HOLDINGS LIMITED
    16711465
    5 Howick Place, London, United Kingdom
    Active Corporate (7 parents, 2 offsprings)
    Officer
    2025-09-11 ~ 2025-10-14
    IIF 20 - Director → ME
  • 14
    ORSTED ICENI ESS (UK) LIMITED
    13890904
    5 Howick Place, London, England
    Active Corporate (10 parents)
    Officer
    2025-05-15 ~ 2025-12-03
    IIF 27 - Director → ME
  • 15
    ORSTED POWER (UK) LIMITED
    - now 04984787
    DONG ENERGY POWER (UK) LIMITED - 2017-10-30
    DONG WIND (UK) LIMITED - 2010-08-18
    5 Howick Place, London, England
    Active Corporate (30 parents, 43 offsprings)
    Officer
    2020-02-19 ~ 2025-03-20
    IIF 17 - Director → ME
  • 16
    ORSTED POWER SALES (UK) LIMITED
    - now 07489052
    DONG ENERGY POWER SALES UK LIMITED - 2017-10-30
    MAGNETIC ENERGY SUPPLY LIMITED - 2012-12-10
    5 Howick Place, London
    Active Corporate (30 parents)
    Officer
    2021-03-18 ~ 2025-12-08
    IIF 3 - Director → ME
  • 17
    ORSTED S&D (UK) LIMITED
    - now 07805315
    DONG ENERGY S&D UK LIMITED - 2017-10-30
    DONG ENERGY SALES UK LIMITED - 2012-01-20
    5 Howick Place, London, England
    Active Corporate (10 parents, 2 offsprings)
    Officer
    2020-02-17 ~ 2025-12-09
    IIF 6 - Director → ME
  • 18
    ORSTED SALES (UK) LIMITED
    - now 02405635
    DONG ENERGY SALES (UK) LIMITED - 2017-10-30
    SHELL GAS DIRECT LIMITED - 2012-05-01
    QUADRANT GAS LIMITED - 1998-01-01
    QUANTUM GAS LIMITED - 1989-10-17
    SIMPLISTIC LIMITED - 1989-09-05
    5 Howick Place, London
    Active Corporate (70 parents)
    Officer
    2021-03-18 ~ 2025-12-08
    IIF 5 - Director → ME
  • 19
    ORSTED SCOTLAND RENEWABLES 1 LIMITED
    SC702007 SC702015... (more)
    1st Floor, 26 Frederick Street, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Officer
    2021-06-18 ~ dissolved
    IIF 14 - Director → ME
  • 20
    ORSTED SCOTLAND RENEWABLES 2 LIMITED
    SC702015 SC702007... (more)
    1st Floor, 26 Frederick Street, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Officer
    2021-06-18 ~ dissolved
    IIF 16 - Director → ME
  • 21
    ORSTED SCOTLAND RENEWABLES 3 LIMITED
    SC702021 SC702015... (more)
    1st Floor, 26 Frederick Street, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Officer
    2021-06-18 ~ dissolved
    IIF 18 - Director → ME
  • 22
    ORSTED UK III LIMITED
    - now 07962911
    DONG ENERGY UK III LIMITED - 2017-10-30
    5 Howick Place, Howick Place, London, England
    Active Corporate (7 parents)
    Officer
    2020-11-25 ~ 2025-12-09
    IIF 2 - Director → ME
  • 23
    ORSTED WIND POWER A/S
    - now FC034367 OE030278
    DONG ENERGY WIND POWER A/S - 2017-11-23
    C/o Orsted A/s, Kraftvaerksvej 53, Skaerbaek, Fredericia 7000, Denmark
    Active Corporate (21 parents)
    Officer
    2024-11-04 ~ 2025-12-17
    IIF 8 - Director → ME
  • 24
    PICT OFFSHORE LIMITED
    SC626437
    Unit 13-14 Belleknowes Industrial Estate, Inverkeithing
    Active Corporate (14 parents)
    Officer
    2019-08-23 ~ 2025-11-27
    IIF 9 - Director → ME
  • 25
    RENEWABLE UK ASSOCIATION
    - now 01874667 07087401
    BRITISH WIND ENERGY ASSOCIATION - 2009-12-21
    The Conduit, 6 Langley Street, London, England
    Active Corporate (178 parents)
    Officer
    2023-09-30 ~ now
    IIF 10 - Director → ME
  • 26
    SANDFORTH GREEN LTD
    17113249
    Sandforth, 66 Holtspur Top Lane, Beaconsfield, Buckinghamshire, United Kingdom
    Active Corporate (1 parent)
    Officer
    2026-03-24 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2026-03-24 ~ now
    IIF 30 - Ownership of voting rights - 75% or more OE
    IIF 30 - Ownership of shares – 75% or more OE
    IIF 30 - Right to appoint or remove directors OE
  • 27
    SMART WIND LIMITED
    07107382
    5 Howick Place, London, England
    Active Corporate (18 parents)
    Officer
    2020-11-25 ~ 2025-12-11
    IIF 7 - Director → ME
  • 28
    SONNINGMAY WIND LIMITED
    10722635
    5 Howick Place, London, United Kingdom
    Active Corporate (30 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 25 - Director → ME
  • 29
    SOUNDMARK WIND LIMITED
    10721881
    5 Howick Place, London, United Kingdom
    Active Corporate (30 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 26 - Director → ME
  • 30
    ST PETERS COTTAGES (BROAD HINTON) MANAGEMENT COMPANY LIMITED
    02988606
    3 St Peters Cottages, Broad Hinton, Swindon, England
    Active Corporate (14 parents)
    Officer
    1994-11-10 ~ 1995-09-29
    IIF 31 - Director → ME
    1994-11-10 ~ 1996-12-11
    IIF 32 - Secretary → ME

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Contains public sector information retrieved at 5 April 2026 and licensed under the Open Government Licence v3.0.