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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

Halladay, Graham Roy

    Related profiles found in government register
  • Halladay, Graham Roy
    British born in April 1966

    Resident in England

    Registered addresses and corresponding companies
  • Halladay, Graham Roy
    British distribution operations director born in April 1966

    Resident in England

    Registered addresses and corresponding companies
    • Avonbank, Feeder Road, Bristol, BS2 0TB, United Kingdom

      IIF 15
  • Halladay, Graham Roy
    British distributions operations director born in April 1966

    Resident in England

    Registered addresses and corresponding companies
    • National Grid Electricity Distribution, Avonbank, Feeder Road, Bristol, BS2 0TB

      IIF 16
  • Halladay, Graham Roy
    British operations director born in April 1966

    Resident in England

    Registered addresses and corresponding companies
    • Avonbank, Feeder Road, Bristol, Avon, BS2 0TB

      IIF 17 IIF 18
    • Avonbank, Feeder Road, Bristol, BS2 0TB

      IIF 19
child relation
Offspring entities and appointments
Active 16
  • 1
    Avonbank, Feeder Road, Bristol
    Active Corporate (3 parents)
    Officer
    2022-10-10 ~ now
    IIF 9 - Director → ME
  • 2
    WESTERN POWER DISTRIBUTION (EAST MIDLANDS) PLC - 2022-09-20
    CENTRAL NETWORKS EAST PLC - 2011-04-01
    EAST MIDLANDS ELECTRICITY DISTRIBUTION PLC. - 2004-04-05
    POWERGEN ENERGY PLC - 2001-10-01
    EAST MIDLANDS ELECTRICITY PLC - 1999-07-12
    Avonbank, Feeder Road, Bristol
    Active Corporate (11 parents, 1 offspring)
    Officer
    2019-01-14 ~ now
    IIF 10 - Director → ME
  • 3
    WESTERN POWER DISTRIBUTION (SOUTH WALES) PLC - 2022-09-21
    SOUTH WALES ELECTRICITY PLC - 2001-07-27
    Avonbank, Feeder Road, Bristol
    Active Corporate (11 parents, 2 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 11 - Director → ME
  • 4
    WESTERN POWER DISTRIBUTION (SOUTH WEST) PLC - 2022-09-20
    SOUTH WESTERN ELECTRICITY PLC - 2001-07-27
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (11 parents, 4 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 6 - Director → ME
  • 5
    WESTERN POWER DISTRIBUTION (WEST MIDLANDS) PLC - 2022-09-20
    CENTRAL NETWORKS WEST PLC - 2011-04-01
    AQUILA NETWORKS PLC - 2004-04-05
    GPU POWER NETWORKS (UK) PLC - 2002-05-09
    ENERGENT LIMITED - 2001-05-14
    FORAY 1152 LIMITED - 1998-09-07
    Avonbank, Feeder Road, Bristol
    Active Corporate (11 parents, 3 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 13 - Director → ME
  • 6
    WESTERN POWER GENERATION LIMITED - 2022-09-20
    SOUTH WESTERN POWER LIMITED - 1999-10-01
    SOUTH WESTERN ELECTRICITY LIMITED - 1989-04-01
    STARTSTAGE LIMITED - 1988-02-08
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (4 parents)
    Officer
    2019-01-14 ~ now
    IIF 2 - Director → ME
  • 7
    WPD INVESTMENT HOLDINGS LIMITED - 2022-09-20
    Avonbank, Feeder Road, Bristol, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    2022-10-14 ~ dissolved
    IIF 15 - Director → ME
  • 8
    WESTERN POWER DISTRIBUTION INVESTMENTS LIMITED - 2022-09-20
    HYDER INDUSTRIAL GROUP LIMITED - 2004-06-25
    SOUTH WALES ELECTRICITY GENERATING LIMITED - 2000-04-14
    SOUTH WALES ELECTRICITY GENERATING (CYNHYRCHU TRYDAN DE CYMRU) LIMITED - 1990-10-22
    SOUTH WALES ELECTRICITY GENERATING (CYNHYRCHU TRYDAM DE CYMRU) LIMITED - 1988-06-08
    MEASURER LIMITED - 1988-05-26
    Avonbank, Feeder Road, Bristol
    Active Corporate (4 parents, 7 offsprings)
    Officer
    2022-10-14 ~ now
    IIF 8 - Director → ME
  • 9
    WPD MIDLANDS LIMITED - 2022-09-20
    PPL MIDLANDS LIMITED - 2021-06-17
    WPD MIDLANDS HOLDINGS LIMITED - 2014-11-10
    CENTRAL NETWORKS LIMITED - 2011-04-01
    CENTRAL NETWORKS PLC - 2010-12-22
    MIDLANDS ELECTRICITY PLC - 2004-04-05
    Avonbank, Feeder Road, Bristol
    Active Corporate (4 parents, 1 offspring)
    Officer
    2022-10-14 ~ now
    IIF 7 - Director → ME
  • 10
    WPD DISTRIBUTION NETWORK HOLDINGS LIMITED - 2022-09-20
    WESTERN POWER DISTRIBUTION LIMITED - 2014-09-30
    WPD 2014 LIMITED - 2014-01-31
    Avonbank, Feeder Road, Bristol
    Active Corporate (5 parents, 15 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 12 - Director → ME
  • 11
    WESTERN POWER DISTRIBUTION PLC - 2022-09-20
    WESTERN POWER DISTRIBUTION LIMITED - 2015-06-24
    PPL WPD 2 LIMITED - 2014-09-30
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (9 parents, 3 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 1 - Director → ME
  • 12
    WPD PROPERTY INVESTMENTS LIMITED - 2022-09-20
    SWEB PROPERTY INVESTMENTS LIMITED - 1999-10-01
    SWEB PROPERTIES LIMITED - 1992-03-02
    HOTSNOW LIMITED - 1989-05-26
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (3 parents)
    Officer
    2022-10-10 ~ now
    IIF 5 - Director → ME
  • 13
    WPDG LIMITED - 2022-10-14
    WPD LIMITED - 2001-10-29
    1st And 2nd Floor, Elizabeth House, Les Ruettes Brayes, St Peter Port, Guernsey
    Converted / Closed Corporate (3 parents, 1 offspring)
    Officer
    2022-10-06 ~ now
    IIF 16 - Director → ME
  • 14
    6 Houndiscombe Road, Plymouth, Devon, United Kingdom
    Active Corporate (7 parents)
    Net Assets/Liabilities (Company account)
    17,673 GBP2024-04-30
    Officer
    2024-06-30 ~ now
    IIF 14 - Director → ME
  • 15
    PPL UK INVESTMENTS LIMITED - 2021-06-16
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (4 parents, 1 offspring)
    Officer
    2022-10-14 ~ now
    IIF 3 - Director → ME
  • 16
    PPL WEM LIMITED - 2021-06-16
    PPL WEM HOLDINGS LIMITED - 2014-11-25
    PPL WEM HOLDINGS PLC - 2013-10-22
    WPD INVESTMENT HOLDINGS LIMITED - 2011-03-24
    PPL WEM HOLDINGS LIMITED - 2011-03-24
    ALNERY NO. 2100 LIMITED - 2000-12-28
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (4 parents)
    Officer
    2022-10-14 ~ now
    IIF 4 - Director → ME
Ceased 3
  • 1
    SOUTH WESTERN HELICOPTERS LIMITED - 2022-09-20
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (4 parents)
    Officer
    2019-01-14 ~ 2024-12-15
    IIF 17 - Director → ME
  • 2
    WPD TELECOMS LIMITED - 2022-09-20
    SURF TELECOMS LIMITED - 2018-12-19
    SWEB TELECOM LIMITED - 1999-09-01
    SWECOM LIMITED - 1993-06-25
    PRIZEADD LIMITED - 1989-07-12
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (3 parents)
    Officer
    2019-01-14 ~ 2024-12-15
    IIF 18 - Director → ME
  • 3
    WPD SMART METERING LIMITED - 2022-11-24
    Sentinel House, 10-12 Massetts Road, Horley, England
    Active Corporate (3 parents)
    Equity (Company account)
    10,401,354 GBP2024-05-31
    Officer
    2019-01-14 ~ 2022-06-01
    IIF 19 - Director → ME

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