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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

Heycock, Mark Llewellyn

    Related profiles found in government register
  • Heycock, Mark Llewellyn
    British born in April 1980

    Resident in Wales

    Registered addresses and corresponding companies
    • Clos Fferws, Parc Hendre, Capel Hendre, Ammanford, Carmarthenshire, SA18 3BL

      IIF 1
  • Heycock, Mark Llewellyn
    British accountant born in April 1980

    Resident in Wales

    Registered addresses and corresponding companies
    • Wmc, Bute Place, Cardiff, CF10 5AL

      IIF 2
  • Heycock, Mark Llewellyn
    British accountant born in April 1980

    Registered addresses and corresponding companies
    • 52 Ynys Y Gored, Port Talbot, SA13 2EB

      IIF 3
  • Heycock, Mark Llewellyn
    British

    Registered addresses and corresponding companies
    • 52 Ynys Y Gored, Port Talbot, SA13 2EB

      IIF 4 IIF 5
  • Heycock, Mark Llewellyn

    Registered addresses and corresponding companies
    • Clos Fferws, Parc Hendre, Capel Hendre, Ammanford, Carmarthenshire, SA18 3BL

      IIF 6 IIF 7
    • Clos Fferws, Parc Hendre, Capel Hendre, Ammanford, Carmarthenshire, SA18 3BL, United Kingdom

      IIF 8
    • 52 Ynys Y Gored, Port Talbot, SA13 2EB

      IIF 9
child relation
Offspring entities and appointments 7
  • 1
    HAYDALE COMPOSITE SOLUTIONS LIMITED
    - now 02675462 09426328
    EPL COMPOSITE SOLUTIONS LTD - 2015-05-29
    EURO-PROJECTS (LTTC) LIMITED - 2007-01-24
    SYSTEMORDER LIMITED - 1992-02-03
    Clos Fferws Parc Hendre, Capel Hendre, Ammanford, Carmarthenshire, United Kingdom
    Active Corporate (24 parents, 1 offspring)
    Equity (Company account)
    1 GBP2018-06-30
    Officer
    2024-04-30 ~ now
    IIF 8 - Secretary → ME
  • 2
    HAYDALE GRAPHENE INDUSTRIES PLC
    - now 07228939 07441858
    HAYDALE GRAPHENE INDUSTRIES LIMITED - 2014-04-02
    INNOVATIVE CARBON LIMITED - 2014-03-20
    Clos Fferws Parc Hendre, Capel Hendre, Ammanford, Carmarthenshire
    Active Corporate (23 parents, 9 offsprings)
    Officer
    2024-04-30 ~ now
    IIF 7 - Secretary → ME
  • 3
    HAYDALE LIMITED
    - now 04790862
    HAYDALE LIMITED
    - 2026-01-14 04790862
    Clos Fferws Parc Hendre, Capel Hendre, Ammanford, Carmarthenshire
    Active Corporate (21 parents)
    Officer
    2021-06-01 ~ now
    IIF 1 - Director → ME
    2024-04-30 ~ now
    IIF 6 - Secretary → ME
  • 4
    RHYS WILLIAMS LIMITED - now
    HEYCOCK HUSSELL AND WILLIAMS LIMITED
    - 2007-11-12 05671667
    70 Heol Y Nant, Baglan, Port Talbot, West Glamorgan
    Active Corporate (5 parents)
    Equity (Company account)
    7,667 GBP2024-03-31
    Officer
    2006-01-11 ~ 2007-11-01
    IIF 3 - Director → ME
    2006-01-11 ~ 2007-11-01
    IIF 9 - Secretary → ME
  • 5
    SERVICE CONTROL LIMITED
    04082608
    Deloitte Llp, 5 Callaghan Square, Cardiff, South Glamorgan
    Dissolved Corporate (6 parents)
    Officer
    2007-07-24 ~ 2009-01-20
    IIF 5 - Secretary → ME
  • 6
    SERVICE CONTROL TECHNOLOGY LIMITED
    06322815
    C/o Graham Paul, 10-12 Dunraven Place, Bridgend
    Dissolved Corporate (4 parents)
    Officer
    2007-07-24 ~ 2009-01-20
    IIF 4 - Secretary → ME
  • 7
    WELSH DANCE THEATRE TRUST LIMITED
    01195345
    Rubicon Dance, Nora Street, Adamsdown, Cardiff
    Active Corporate (40 parents)
    Officer
    2014-07-04 ~ 2018-12-11
    IIF 2 - Director → ME

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