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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

Hartley, Mark Stephen

    Related profiles found in government register
  • Hartley, Mark Stephen
    British born in June 1972

    Resident in England

    Registered addresses and corresponding companies
    • 6 Atlantic Quay, Glasgow, G2 8JD, Scotland

      IIF 1
    • Javelin House, Building 1420, Charlton Court, Gloucester Business Park, Gloucester, GL3 4AE, England

      IIF 2
    • Nova North, 11 Bressenden Place, London, SW1E 5BY, England

      IIF 3 IIF 4 IIF 5
  • Hartley, Mark Stephen
    British company director born in June 1972

    Resident in England

    Registered addresses and corresponding companies
    • 6 Atlantic Quay, Glasgow, G2 8JB, Scotland

      IIF 8
    • 2nd Floor, 3 St James's Square, London, SW1Y 4JU, United Kingdom

      IIF 9
    • 90, Whitfield Street, London, W1T 4EZ, England

      IIF 10 IIF 11 IIF 12
    • Nova North, 11 Bressenden Place, London, SW1E 5BY, England

      IIF 13
  • Hartley, Mark Stephen
    British company director born in June 1972

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Barnett Way, Barnwood, Gloucester, GL4 3RS

      IIF 14
    • 40 Grosvenor Place, Victoria, London, SW1X 7EN

      IIF 15
child relation
Offspring entities and appointments
Active 10
  • 1
    BRITISH ENERGY LIMITED
    - now SC162273
    BRITISH ENERGY PLC - 2005-01-14
    6 Atlantic Quay, Glasgow, Scotland
    Dissolved Corporate (3 parents, 8 offsprings)
    Officer
    2023-04-01 ~ dissolved
    IIF 8 - Director → ME
  • 2
    CHESHIRE CAVITY STORAGE 1 LIMITED
    - now 06438979 06398186, 06398187, 06438736
    BROOMCO (4120) LIMITED - 2007-12-11 00339801, 00474138, 01055136... (more)
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (3 parents)
    Officer
    2023-04-01 ~ now
    IIF 4 - Director → ME
  • 3
    EDF ENERGY (THERMAL GENERATION) LIMITED
    - now 04267569
    EDF ENERGY (WEST BURTON POWER) LIMITED - 2018-01-02
    WEST BURTON POWER LIMITED - 2003-06-30 03432165, 04684425
    WEST BURTON OPERATIONS LIMITED - 2002-01-14
    TXU EUROPE (HOOD NO. 2) LIMITED - 2002-01-11
    ALNERY NO.2186 LIMITED - 2001-09-07 01437197, 01437199, 01438185... (more)
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (6 parents, 2 offsprings)
    Officer
    2023-04-01 ~ now
    IIF 5 - Director → ME
  • 4
    EDF ENERGY (TSO) LIMITED
    - now 03432165
    SUTTON BRIDGE B LIMITED - 2019-10-24
    WEST BURTON LIMITED - 2018-03-14 13027787
    WEST BURTON POWER LIMITED - 2002-01-14 04267569, 04684425
    TXU EUROPE WEST BURTON LIMITED - 2002-01-11
    EASTERN DATA COLLECTION SERVICES LIMITED - 2000-08-21
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (4 parents)
    Equity (Company account)
    2 GBP2019-12-31
    Officer
    2024-01-05 ~ now
    IIF 13 - Director → ME
  • 5
    EDF ENERGY INNOVATION LIMITED
    - now 06999483
    NNB LAND COMPANY LIMITED - 2018-07-24
    90 Whitfield Street, London, England
    Dissolved Corporate (4 parents)
    Officer
    2023-04-01 ~ dissolved
    IIF 12 - Director → ME
  • 6
    EDF ENERGY NUCLEAR GENERATION GROUP LIMITED
    - now SC270184 SC395111
    BRITISH ENERGY GROUP LIMITED - 2011-07-01 SC395111
    BRITISH ENERGY GROUP PLC - 2010-12-17 SC395111
    6 Atlantic Quay, Glasgow, Scotland
    Active Corporate (11 parents, 6 offsprings)
    Officer
    2023-04-01 ~ now
    IIF 1 - Director → ME
  • 7
    EDF ENERGY NUCLEAR GENERATION LIMITED
    - now 03076445 07582357
    BRITISH ENERGY GENERATION LIMITED - 2011-07-01 07582357, SC117121
    NUCLEAR ELECTRIC LIMITED - 1998-12-31 02264251
    AGR & PWR CO. LIMITED - 1996-04-01
    Javelin House, Building 1420, Charlton Court, Gloucester Business Park, Gloucester, England
    Active Corporate (8 parents, 3 offsprings)
    Officer
    2023-04-01 ~ now
    IIF 2 - Director → ME
  • 8
    EDF ENERGY R&D UK CENTRE LIMITED
    - now 02948613
    KNIGHT DEBT RECOVERY SERVICES LIMITED - 2012-03-14
    BEAVERPACK LIMITED - 1994-08-12
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (8 parents)
    Officer
    2024-08-01 ~ now
    IIF 3 - Director → ME
  • 9
    NUCLEAR SERVICES (TECHNICAL) COMPANY LIMITED
    15749828
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (8 parents)
    Officer
    2024-05-30 ~ now
    IIF 7 - Director → ME
  • 10
    WEST BURTON PROPERTY LIMITED
    - now 04267566
    TXU EUROPE (HOOD) LIMITED - 2002-01-11
    ALNERY NO.2185 LIMITED - 2001-09-07 01437197, 01437199, 01438185... (more)
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    1 GBP2023-12-31
    Officer
    2023-04-01 ~ now
    IIF 6 - Director → ME
Ceased 5
  • 1
    EDF ENERGY NUCLEAR GENERATION LIMITED
    - now 03076445 07582357
    BRITISH ENERGY GENERATION LIMITED - 2011-07-01 07582357, SC117121
    NUCLEAR ELECTRIC LIMITED - 1998-12-31 02264251
    AGR & PWR CO. LIMITED - 1996-04-01
    Javelin House, Building 1420, Charlton Court, Gloucester Business Park, Gloucester, England
    Active Corporate (8 parents, 3 offsprings)
    Officer
    2014-01-01 ~ 2017-10-31
    IIF 14 - Director → ME
  • 2
    EDF ENERGY R&D UK CENTRE LIMITED
    - now 02948613
    KNIGHT DEBT RECOVERY SERVICES LIMITED - 2012-03-14
    BEAVERPACK LIMITED - 1994-08-12
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (8 parents)
    Officer
    2014-08-12 ~ 2016-10-21
    IIF 15 - Director → ME
  • 3
    KISTOS ENERGY STORAGE LIMITED - now
    EDF ENERGY (GAS STORAGE) LIMITED
    - 2024-04-24 02850057
    EDF ENERGY (GAS STORAGE HOLE HOUSE) LIMITED - 2020-09-14
    EDF TRADING GAS STORAGE LIMITED - 2014-04-04
    ENERGY MERCHANTS GAS STORAGE (UK) LIMITED - 2006-05-16
    AQUILA ENERGY STORAGE LIMITED - 2002-10-15
    UNITED GAS STORAGE LIMITED - 1999-05-04
    2nd Floor 3 St James's Square, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2023-04-01 ~ 2024-04-23
    IIF 9 - Director → ME
  • 4
    NNB GENERATION COMPANY (HPC) LIMITED
    - now 06937084 09284825, 09284826
    NNB GENERATION COMPANY LIMITED - 2015-10-16 09284825, 09284826
    Building 1000, Park Avenue, Aztec West Business Park, Almondsbury, Bristol, England
    Active Corporate (15 parents, 1 offspring)
    Officer
    2018-06-06 ~ 2022-12-01
    IIF 10 - Director → ME
  • 5
    SIZEWELL C LIMITED - now
    NNB GENERATION COMPANY (SZC) LTD
    - 2023-06-12 09284825 06937084, 09284826
    25 Copthall Avenue, London, England
    Active Corporate (14 parents, 2 offsprings)
    Officer
    2022-12-01 ~ 2023-04-03
    IIF 11 - Director → ME

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