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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

Prime, John Matthew

    Related profiles found in government register
  • Prime, John Matthew
    British born in July 1969

    Resident in England

    Registered addresses and corresponding companies
    • 3rd Floor, 10 South St. Andrew Street, Edinburgh, Midlothian, EH2 2AZ, Scotland

      IIF 1 IIF 2 IIF 3
    • Suite 1, 7th Floor, 50 Broadway, London, SW1H 0BL, United Kingdom

      IIF 4 IIF 5 IIF 6
    • Upper Granton, Goodrich, Ross-on-wye, Herefordshire, HR9 6JE, England

      IIF 9
  • Prime, John Matthew
    British head of external & regulatory affai born in July 1969

    Resident in England

    Registered addresses and corresponding companies
    • 91, George Street, Edinburgh, Midlothian, EH2 3ES, Scotland

      IIF 10 IIF 11
  • Prime, John Matthew
    British head of external & regulatory affairs born in July 1969

    Resident in England

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments
Active 1
  • 1
    THE MARCHES ENERGY AGENCY - 2025-12-16
    The Pump House, Coton Hill, Shrewsbury, Shropshire
    Active Corporate (5 parents)
    Equity (Company account)
    130,560 GBP2018-03-31
    Officer
    2025-05-21 ~ now
    IIF 9 - Director → ME
Ceased 18
  • 1
    12 New Fetter Lane, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2020-11-30 ~ 2024-07-31
    IIF 14 - Director → ME
  • 2
    12 New Fetter Lane, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2022-12-12 ~ 2024-07-31
    IIF 15 - Director → ME
  • 3
    Suite 1, 7th Floor 50 Broadway, London, England
    Active Corporate (2 parents)
    Net Assets/Liabilities (Company account)
    1 GBP2024-12-31
    Officer
    2020-11-01 ~ 2024-07-31
    IIF 11 - Director → ME
  • 4
    Suite 1, 7th Floor, 50 Broadway, London, England
    Active Corporate (3 parents)
    Officer
    2020-11-01 ~ 2024-07-31
    IIF 10 - Director → ME
  • 5
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents)
    Officer
    2021-08-27 ~ 2024-07-31
    IIF 7 - Director → ME
  • 6
    Suite 1, 7th Floor, 50 Broadway, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 1 - Director → ME
  • 7
    FLEXIBLEGRIDPOWER2 LTD - 2025-06-26
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    -205,304 GBP2021-03-31
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 13 - Director → ME
  • 8
    ENERGYGRIDPOWER2 LTD - 2025-06-26
    Suite 1, 7th Floor, 50 Broadway, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 12 - Director → ME
  • 9
    FLEXIBLEGRIDPOWER LTD - 2025-06-26
    Suite 1, 7th Floor , 50 Broadway, London, United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    -29,718 GBP2021-03-31
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 17 - Director → ME
  • 10
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents, 1 offspring)
    Officer
    2021-09-27 ~ 2024-07-31
    IIF 19 - Director → ME
  • 11
    Suite 1, 7th Floor, 50 Broadway, London, United Kingdom
    Active Corporate (5 parents, 2 offsprings)
    Officer
    2021-08-27 ~ 2024-07-31
    IIF 4 - Director → ME
  • 12
    SPECTRUMRESERVE LTD - 2025-06-27
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    -158,339 GBP2021-04-30
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 3 - Director → ME
  • 13
    ENERGYGRIDPOWER3 LTD - 2025-06-27
    Suite 1, 7th Floor, 50 Broadway, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 2 - Director → ME
  • 14
    BLUEGRIDPOWER LTD - 2025-06-27
    Suite 1, 7th Floor, 50 Broadway, London, United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    -100,512 GBP2020-12-31
    Officer
    2021-10-03 ~ 2024-07-31
    IIF 5 - Director → ME
  • 15
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents, 1 offspring)
    Officer
    2021-09-27 ~ 2024-07-31
    IIF 8 - Director → ME
  • 16
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents, 2 offsprings)
    Officer
    2021-08-27 ~ 2024-07-31
    IIF 6 - Director → ME
  • 17
    ENERGYGRIDPOWER LTD - 2025-06-27
    Suite 1, 7th Floor, 50 Broadway, London., United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    -462,438 GBP2022-03-31
    Officer
    2022-06-01 ~ 2024-07-31
    IIF 18 - Director → ME
  • 18
    Suite 1, 7th Floor, 50 Broadway, London, United Kingdom
    Active Corporate (5 parents, 2 offsprings)
    Officer
    2022-05-30 ~ 2024-07-31
    IIF 16 - Director → ME

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