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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

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 19
  • 1
    KELSTON PROPERTIES 2 LIMITED
    05540505 04574170
    Avonbank, Feeder Road, Bristol
    Active Corporate (11 parents)
    Officer
    2022-10-10 ~ now
    IIF 9 - Director → ME
  • 2
    NATIONAL GRID ELECTRICITY DISTRIBUTION (EAST MIDLANDS) PLC
    - now 02366923 03600574... (more)
    WESTERN POWER DISTRIBUTION (EAST MIDLANDS) PLC
    - 2022-09-20 02366923 03600574
    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 (68 parents, 1 offspring)
    Officer
    2019-01-14 ~ now
    IIF 10 - Director → ME
  • 3
    NATIONAL GRID ELECTRICITY DISTRIBUTION (SOUTH WALES) PLC
    - now 02366985 02366894
    WESTERN POWER DISTRIBUTION (SOUTH WALES) PLC
    - 2022-09-21 02366985 02366894
    SOUTH WALES ELECTRICITY PLC - 2001-07-27
    Avonbank, Feeder Road, Bristol
    Active Corporate (49 parents, 2 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 11 - Director → ME
  • 4
    NATIONAL GRID ELECTRICITY DISTRIBUTION (SOUTH WEST) PLC
    - now 02366894 02366985
    WESTERN POWER DISTRIBUTION (SOUTH WEST) PLC
    - 2022-09-20 02366894 02366985
    SOUTH WESTERN ELECTRICITY PLC - 2001-07-27
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (50 parents, 5 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 6 - Director → ME
  • 5
    NATIONAL GRID ELECTRICITY DISTRIBUTION (WEST MIDLANDS) PLC
    - now 03600574 02366923... (more)
    WESTERN POWER DISTRIBUTION (WEST MIDLANDS) PLC
    - 2022-09-20 03600574 02366923
    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 (53 parents, 3 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 13 - Director → ME
  • 6
    NATIONAL GRID ELECTRICITY DISTRIBUTION GENERATION LIMITED
    - now 02207483
    WESTERN POWER GENERATION LIMITED
    - 2022-09-20 02207483
    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 (24 parents)
    Officer
    2019-01-14 ~ now
    IIF 2 - Director → ME
  • 7
    NATIONAL GRID ELECTRICITY DISTRIBUTION INVESTMENT HOLDINGS LIMITED
    - now 10991479
    WPD INVESTMENT HOLDINGS LIMITED - 2022-09-20
    Avonbank, Feeder Road, Bristol, United Kingdom
    Dissolved Corporate (10 parents, 1 offspring)
    Officer
    2022-10-14 ~ dissolved
    IIF 15 - Director → ME
  • 8
    NATIONAL GRID ELECTRICITY DISTRIBUTION INVESTMENTS LIMITED
    - now 02202625
    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 (24 parents, 7 offsprings)
    Officer
    2022-10-14 ~ now
    IIF 8 - Director → ME
  • 9
    NATIONAL GRID ELECTRICITY DISTRIBUTION MIDLANDS LIMITED
    - now 02366928 10991462... (more)
    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 (59 parents, 2 offsprings)
    Officer
    2022-10-14 ~ now
    IIF 7 - Director → ME
  • 10
    NATIONAL GRID ELECTRICITY DISTRIBUTION NETWORK HOLDINGS LIMITED
    - now 08857746
    WPD DISTRIBUTION NETWORK HOLDINGS LIMITED
    - 2022-09-20 08857746 09178692
    WESTERN POWER DISTRIBUTION LIMITED - 2014-09-30
    WPD 2014 LIMITED - 2014-01-31
    Avonbank, Feeder Road, Bristol
    Active Corporate (26 parents, 16 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 12 - Director → ME
  • 11
    NATIONAL GRID ELECTRICITY DISTRIBUTION PLC
    - now 09223384
    WESTERN POWER DISTRIBUTION PLC
    - 2022-09-20 09223384 08857746... (more)
    WESTERN POWER DISTRIBUTION LIMITED - 2015-06-24
    PPL WPD 2 LIMITED - 2014-09-30
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (30 parents, 3 offsprings)
    Officer
    2019-01-14 ~ now
    IIF 1 - Director → ME
  • 12
    NATIONAL GRID ELECTRICITY DISTRIBUTION PROPERTY INVESTMENTS LIMITED
    - now 02373239
    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 (14 parents)
    Officer
    2022-10-10 ~ now
    IIF 5 - Director → ME
  • 13
    NATIONAL GRID HELICOPTERS LIMITED
    - now 02439215
    SOUTH WESTERN HELICOPTERS LIMITED
    - 2022-09-20 02439215
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (22 parents)
    Officer
    2019-01-14 ~ 2024-12-15
    IIF 17 - Director → ME
  • 14
    NATIONAL GRID TELECOMS LIMITED
    - now 02386327
    WPD TELECOMS LIMITED
    - 2022-09-20 02386327
    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 (23 parents)
    Officer
    2019-01-14 ~ 2024-12-15
    IIF 18 - Director → ME
  • 15
    NG ELECTRICITY DISTRIBUTION LIMITED
    - now FC023442 OE013280
    WPDG LIMITED
    - 2022-10-14 FC023442 BR006227... (more)
    WPD LIMITED - 2001-10-29
    1st And 2nd Floor, Elizabeth House, Les Ruettes Brayes, St Peter Port, Guernsey
    Converted / Closed Corporate (16 parents, 1 offspring)
    Officer
    2022-10-06 ~ now
    IIF 16 - Director → ME
  • 16
    STARK CONNECT LIMITED - now
    WPD SMART METERING LIMITED
    - 2022-11-24 07139151
    Sentinel House, 10-12 Massetts Road, Horley, England
    Active Corporate (10 parents)
    Officer
    2019-01-14 ~ 2022-06-01
    IIF 19 - Director → ME
  • 17
    THE SPINNAKER QUAY MANAGEMENT COMPANY LIMITED
    05420087
    6 Houndiscombe Road, Plymouth, Devon, United Kingdom
    Active Corporate (27 parents)
    Officer
    2024-06-30 ~ now
    IIF 14 - Director → ME
  • 18
    WPD WEM HOLDINGS LIMITED
    - now 07578676
    PPL UK INVESTMENTS LIMITED - 2021-06-16
    Avonbank, Feeder Road, Bristol, Avon
    Active Corporate (14 parents, 2 offsprings)
    Officer
    2022-10-14 ~ now
    IIF 3 - Director → ME
  • 19
    WPD WEM LIMITED
    - now 04066211
    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 (35 parents, 1 offspring)
    Officer
    2022-10-14 ~ now
    IIF 4 - Director → ME

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