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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

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

    Resident in England

    Registered addresses and corresponding companies
  • Hartley, Mark Stephen
    British born in June 1972

    Resident in United Kingdom

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments 18
  • 1
    BRITISH ENERGY LIMITED
    - now SC162273
    Contact us for insolvency relation
    BRITISH ENERGY PLC - 2005-01-14
    Contact us for insolvency relation
    6 Atlantic Quay, Glasgow, Scotland
    Dissolved Corporate (42 parents, 12 offsprings)
    Officer
    2023-04-01 ~ dissolved
    IIF 3 - Director → ME
  • 2
    CHESHIRE CAVITY STORAGE 1 LIMITED
    - now 06438979 06398186... (more)
    Contact us for insolvency relation
    BROOMCO (4120) LIMITED - 2007-12-11
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Dissolved Corporate (22 parents)
    Officer
    2023-04-01 ~ dissolved
    IIF 11 - Director → ME
  • 3
    EDF ENERGY (THERMAL GENERATION) LIMITED
    - now 04267569 03076445... (more)
    Contact us for insolvency relation
    EDF ENERGY (WEST BURTON POWER) LIMITED - 2018-01-02
    Contact us for insolvency relation
    WEST BURTON POWER LIMITED - 2003-06-30
    Contact us for insolvency relation
    WEST BURTON OPERATIONS LIMITED - 2002-01-14
    Contact us for insolvency relation
    TXU EUROPE (HOOD NO. 2) LIMITED - 2002-01-11
    Contact us for insolvency relation
    ALNERY NO.2186 LIMITED - 2001-09-07
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (48 parents, 6 offsprings)
    Officer
    2023-04-01 ~ 2026-07-01
    IIF 12 - Director → ME
  • 4
    EDF ENERGY (TSO) LIMITED
    - now 03432165
    Contact us for insolvency relation
    SUTTON BRIDGE B LIMITED - 2019-10-24
    Contact us for insolvency relation
    WEST BURTON LIMITED - 2018-03-14
    Contact us for insolvency relation
    WEST BURTON POWER LIMITED - 2002-01-14
    Contact us for insolvency relation
    TXU EUROPE WEST BURTON LIMITED - 2002-01-11
    Contact us for insolvency relation
    EASTERN DATA COLLECTION SERVICES LIMITED - 2000-08-21
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Dissolved Corporate (25 parents)
    Officer
    2024-01-05 ~ dissolved
    IIF 19 - Director → ME
  • 5
    EDF ENERGY INNOVATION LIMITED
    - now 06999483
    Contact us for insolvency relation
    NNB LAND COMPANY LIMITED - 2018-07-24
    Contact us for insolvency relation
    90 Whitfield Street, London, England
    Dissolved Corporate (15 parents)
    Officer
    2023-04-01 ~ dissolved
    IIF 9 - Director → ME
  • 6
    EDF ENERGY NUCLEAR GENERATION GROUP LIMITED
    - now SC270184 SC395111
    Contact us for insolvency relation
    BRITISH ENERGY GROUP LIMITED - 2011-07-01
    Contact us for insolvency relation
    BRITISH ENERGY GROUP PLC - 2010-12-17
    Contact us for insolvency relation
    6 Atlantic Quay, Glasgow, Scotland
    Active Corporate (60 parents, 6 offsprings)
    Officer
    2023-04-01 ~ 2026-07-01
    IIF 4 - Director → ME
  • 7
    EDF ENERGY NUCLEAR GENERATION LIMITED
    - now 03076445 07582357... (more)
    Contact us for insolvency relation
    BRITISH ENERGY GENERATION LIMITED - 2011-07-01
    Contact us for insolvency relation
    NUCLEAR ELECTRIC LIMITED - 1998-12-31
    Contact us for insolvency relation
    AGR & PWR CO. LIMITED - 1996-04-01
    Contact us for insolvency relation
    Javelin House, Building 1420, Charlton Court, Gloucester Business Park, Gloucester, England
    Active Corporate (72 parents, 3 offsprings)
    Officer
    2023-04-01 ~ now
    IIF 5 - Director → ME
    2014-01-01 ~ 2017-10-31
    IIF 20 - Director → ME
  • 8
    EDF ENERGY R&D UK CENTRE LIMITED
    - now 02948613
    Contact us for insolvency relation
    KNIGHT DEBT RECOVERY SERVICES LIMITED - 2012-03-14
    Contact us for insolvency relation
    BEAVERPACK LIMITED - 1994-08-12
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (45 parents)
    Officer
    2024-08-01 ~ now
    IIF 10 - Director → ME
    2014-08-12 ~ 2016-10-21
    IIF 21 - Director → ME
  • 9
    KISTOS ENERGY STORAGE LIMITED - now
    Contact us for insolvency relation
    EDF ENERGY (GAS STORAGE) LIMITED
    - 2024-04-24 02850057
    Contact us for insolvency relation
    EDF ENERGY (GAS STORAGE HOLE HOUSE) LIMITED - 2020-09-14
    Contact us for insolvency relation
    EDF TRADING GAS STORAGE LIMITED - 2014-04-04
    Contact us for insolvency relation
    ENERGY MERCHANTS GAS STORAGE (UK) LIMITED - 2006-05-16
    Contact us for insolvency relation
    AQUILA ENERGY STORAGE LIMITED - 2002-10-15
    Contact us for insolvency relation
    UNITED GAS STORAGE LIMITED - 1999-05-04
    Contact us for insolvency relation
    2nd Floor 3 St James's Square, London, United Kingdom
    Active Corporate (43 parents)
    Officer
    2023-04-01 ~ 2024-04-23
    IIF 6 - Director → ME
  • 10
    NNB GENERATION COMPANY (HPC) LIMITED
    - now 06937084 09284825... (more)
    Contact us for insolvency relation
    NNB GENERATION COMPANY LIMITED - 2015-10-16
    Contact us for insolvency relation
    Building 1000, Park Avenue, Aztec West Business Park, Almondsbury, Bristol, England
    Active Corporate (61 parents, 1 offspring)
    Officer
    2026-07-01 ~ now
    IIF 1 - Director → ME
    2018-06-06 ~ 2022-12-01
    IIF 7 - Director → ME
  • 11
    NNB HOLDING COMPANY (HPC) LIMITED
    - now 06937080
    Contact us for insolvency relation
    NNB HOLDING COMPANY LIMITED - 2015-12-17
    Contact us for insolvency relation
    Building 1000, Park Avenue, Aztec West Business Park, Almondsbury, Bristol, England
    Active Corporate (56 parents, 2 offsprings)
    Officer
    2026-07-01 ~ now
    IIF 2 - Director → ME
  • 12
    NNB TOP COMPANY HPC (A) LTD
    09284749 13815312... (more)
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (14 parents, 1 offspring)
    Officer
    2026-07-01 ~ now
    IIF 14 - Director → ME
  • 13
    NNB TOP COMPANY HPC (B) LTD
    09284753 13815312... (more)
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (15 parents, 1 offspring)
    Officer
    2026-07-01 ~ now
    IIF 13 - Director → ME
  • 14
    NNB TOP COMPANY HPC (C) LIMITED
    13815312 09284753... (more)
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (6 parents, 1 offspring)
    Officer
    2026-07-01 ~ now
    IIF 15 - Director → ME
  • 15
    NUCLEAR SERVICES (TECHNICAL) COMPANY LIMITED
    15749828
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Active Corporate (11 parents)
    Officer
    2024-05-30 ~ now
    IIF 17 - Director → ME
  • 16
    SIZEWELL C LIMITED - now
    Contact us for insolvency relation
    NNB GENERATION COMPANY (SZC) LTD
    - 2023-06-12 09284825 06937084... (more)
    Contact us for insolvency relation
    25 Copthall Avenue, London, England
    Active Corporate (46 parents, 2 offsprings)
    Officer
    2022-12-01 ~ 2023-04-03
    IIF 8 - Director → ME
  • 17
    TAILOR 100 LIMITED
    17249534
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, United Kingdom
    Active Corporate (3 parents)
    Officer
    2026-07-06 ~ now
    IIF 18 - Director → ME
  • 18
    WEST BURTON PROPERTY LIMITED
    - now 04267566
    Contact us for insolvency relation
    TXU EUROPE (HOOD) LIMITED - 2002-01-11
    Contact us for insolvency relation
    ALNERY NO.2185 LIMITED - 2001-09-07
    Contact us for insolvency relation
    Nova North, 11 Bressenden Place, London, England
    Dissolved Corporate (23 parents)
    Officer
    2023-04-01 ~ dissolved
    IIF 16 - Director → ME

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Contains public sector information retrieved at 14 July 2026 and licensed under the Open Government Licence v3.0.