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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

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

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

      IIF 1

    • 5, Howick Place, London, SW1P 1WG

      IIF 2 IIF 3 IIF 4

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

      IIF 5 IIF 6

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

      IIF 7

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

      IIF 8

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

      IIF 9
  • 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 10 IIF 11
  • 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 22

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

      IIF 23

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

      IIF 24 IIF 25
  • Clark, Duncan Guy
    British born in May 1968

    Resident in England

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

    Resident in England

    Registered addresses and corresponding companies

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

      IIF 28
  • 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 29
  • Clark, Duncan Guy
    British research engineer

    Registered addresses and corresponding companies

    • 4 St Peters Cottages, Broad Hinton, Swindon, SN4 9PA

      IIF 30
child relation
Offspring entities and appointments
Active 5
  • 1
    5 Howick Place, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2021-03-18 ~ dissolved
    IIF 18 - Director → ME
  • 2
    1st Floor, 26 Frederick Street, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Officer
    2021-06-18 ~ dissolved
    IIF 13 - Director → ME
  • 3
    1st Floor, 26 Frederick Street, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Officer
    2021-06-18 ~ dissolved
    IIF 15 - Director → ME
  • 4
    1st Floor, 26 Frederick Street, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Officer
    2021-06-18 ~ dissolved
    IIF 17 - Director → ME
  • 5
    BRITISH WIND ENERGY ASSOCIATION - 2009-12-21
    The Conduit, 6 Langley Street, London, England
    Active Corporate (16 parents)
    Officer
    2023-09-30 ~ now
    IIF 9 - Director → ME
Ceased 24
  • 1
    SMART WIND SPC4 LIMITED - 2012-05-10
    5 Howick Place, London, England
    Active Corporate (10 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 23 - Director → ME
  • 2
    HERON WIND LIMITED - 2017-11-22
    5 Howick Place, London, England
    Active Corporate (9 parents, 1 offspring)
    Officer
    2013-02-27 ~ 2014-01-29
    IIF 11 - Director → ME
  • 3
    5 Howick Place, London, United Kingdom
    Active Corporate (10 parents, 1 offspring)
    Officer
    2024-10-22 ~ 2025-10-14
    IIF 20 - Director → ME
  • 4
    5 Howick Place, London, England
    Active Corporate (11 parents, 3 offsprings)
    Officer
    2021-12-13 ~ 2022-09-29
    IIF 14 - Director → ME
  • 5
    ORSTED HORNSEA TWO HOLDINGS LTD - 2025-01-03
    5 Howick Place, London, England
    Active Corporate (7 parents, 1 offspring)
    Officer
    2021-12-10 ~ 2022-09-29
    IIF 12 - Director → ME
  • 6
    5 Howick Place, London, England
    Dissolved Corporate (4 parents)
    Officer
    2013-02-27 ~ 2014-01-29
    IIF 10 - Director → ME
  • 7
    SMART WIND SPC3 LIMITED - 2012-05-10
    5 Howick Place, London
    Active Corporate (12 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 22 - Director → ME
  • 8
    DONG ENERGY (UK) LIMITED - 2017-10-30
    DONG WIND (UK) II LIMITED - 2012-11-07
    5 Howick Place, London
    Active Corporate (4 parents)
    Officer
    2020-04-30 ~ 2025-03-18
    IIF 3 - Director → ME
  • 9
    SMART WIND SPC6 LIMITED - 2017-12-12
    5 Howick Place, London, England
    Active Corporate (4 parents)
    Officer
    2024-02-26 ~ 2025-12-04
    IIF 27 - Director → ME
  • 10
    DONG ENERGY HORNSEA PROJECT THREE (UK) LIMITED - 2017-10-30
    SMART WIND SPC7 LIMITED - 2016-05-28
    5 Howick Place, London, England
    Active Corporate (9 parents)
    Officer
    2024-02-19 ~ 2025-10-14
    IIF 28 - Director → ME
  • 11
    5 Howick Place, London, United Kingdom
    Active Corporate (6 parents, 1 offspring)
    Officer
    2024-10-18 ~ 2025-10-14
    IIF 21 - Director → ME
  • 12
    5 Howick Place, London, United Kingdom
    Active Corporate (5 parents, 1 offspring)
    Officer
    2025-09-11 ~ 2025-10-14
    IIF 19 - Director → ME
  • 13
    5 Howick Place, London, England
    Active Corporate (4 parents)
    Officer
    2025-05-15 ~ 2025-12-03
    IIF 26 - Director → ME
  • 14
    DONG ENERGY POWER (UK) LIMITED - 2017-10-30
    DONG WIND (UK) LIMITED - 2010-08-18
    5 Howick Place, London, England
    Active Corporate (5 parents, 31 offsprings)
    Officer
    2020-02-19 ~ 2025-03-20
    IIF 16 - Director → ME
  • 15
    DONG ENERGY POWER SALES UK LIMITED - 2017-10-30
    MAGNETIC ENERGY SUPPLY LIMITED - 2012-12-10
    5 Howick Place, London
    Active Corporate (3 parents)
    Officer
    2021-03-18 ~ 2025-12-08
    IIF 2 - Director → ME
  • 16
    DONG ENERGY S&D UK LIMITED - 2017-10-30
    DONG ENERGY SALES UK LIMITED - 2012-01-20
    5 Howick Place, London, England
    Active Corporate (2 parents, 2 offsprings)
    Officer
    2020-02-17 ~ 2025-12-09
    IIF 5 - Director → ME
  • 17
    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 (3 parents)
    Officer
    2021-03-18 ~ 2025-12-08
    IIF 4 - Director → ME
  • 18
    DONG ENERGY UK III LIMITED - 2017-10-30
    5 Howick Place, Howick Place, London, England
    Active Corporate (2 parents)
    Officer
    2020-11-25 ~ 2025-12-09
    IIF 1 - Director → ME
  • 19
    DONG ENERGY WIND POWER A/S - 2017-11-23
    C/o Orsted A/s, Kraftvaerksvej 53, Skaerbaek, Fredericia 7000, Denmark
    Active Corporate (6 parents)
    Officer
    2024-11-04 ~ 2025-12-17
    IIF 7 - Director → ME
  • 20
    Unit 13-14 Belleknowes Industrial Estate, Inverkeithing
    Active Corporate (4 parents)
    Equity (Company account)
    782,754 GBP2025-03-31
    Officer
    2019-08-23 ~ 2025-11-27
    IIF 8 - Director → ME
  • 21
    5 Howick Place, London, England
    Active Corporate (4 parents)
    Officer
    2020-11-25 ~ 2025-12-11
    IIF 6 - Director → ME
  • 22
    5 Howick Place, London, United Kingdom
    Active Corporate (10 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 24 - Director → ME
  • 23
    5 Howick Place, London, United Kingdom
    Active Corporate (10 parents, 1 offspring)
    Officer
    2018-07-02 ~ 2022-09-29
    IIF 25 - Director → ME
  • 24
    3 St Peters Cottages, Broad Hinton, Swindon, England
    Active Corporate (2 parents)
    Equity (Company account)
    Retained earnings (accumulated losses)
    3,233 GBP2025-03-31
    Officer
    1994-11-10 ~ 1995-09-29
    IIF 29 - Director → ME
    1994-11-10 ~ 1996-12-11
    IIF 30 - Secretary → ME

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