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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

Williamson, Ian Stuart

    Related profiles found in government register
  • Williamson, Ian Stuart
    British born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Williamson, Ian Stuart
    British born in November 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Williamson, Ian Stuart
    British born in March 1964

    Resident in England

    Registered addresses and corresponding companies
  • Mr Ian Stuart Williamson
    British born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Mr Ian Stuart Williamson
    British born in March 1964

    Resident in England

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments 9
  • 1
    CENEX (CENTRE OF EXCELLENCE FOR LOW CARBON AND FUEL CELL TECHNOLOGIES)
    05371158
    Active Corporate (29 parents, 3 offsprings)
    Officer
    2005-05-04 ~ 2011-11-16
    IIF 9 - Director → ME
  • 2
    H-POWER PLC - now
    AFC ENERGY PLC
    - 2026-05-12 05668788
    AFC ENERGY LIMITED - 2006-06-15
    DFC ENERGY LIMITED - 2006-06-06
    INVESTMENT TRANSITIONS LIMITED - 2006-02-28
    Active Corporate (43 parents, 3 offsprings)
    Officer
    2011-11-07 ~ 2014-11-30
    IIF 8 - Director → ME
  • 3
    HIVE HYDROGEN LIMITED
    13893336
    Active Corporate (4 parents)
    Officer
    2022-02-04 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2022-02-04 ~ now
    IIF 10 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 10 - Ownership of shares – More than 25% but not more than 50% → OE
  • 4
    HYDREXIA (UK) LIMITED
    09717800
    Dissolved Corporate (2 parents)
    Officer
    2015-08-04 ~ dissolved
    IIF 3 - Director → ME
  • 5
    HYENERGY CONSULTANCY LIMITED
    09337860
    Active Corporate (2 parents)
    Officer
    2014-12-02 ~ now
    IIF 6 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 11 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 11 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 6
    HYENERGY HOLDINGS LIMITED
    12672481
    Active Corporate (2 parents)
    Officer
    2020-06-15 ~ now
    IIF 5 - Director → ME
    Person with significant control
    2020-06-15 ~ now
    IIF 12 - Ownership of shares – 75% or more → OE
    IIF 12 - Right to appoint or remove directors → OE
    IIF 12 - Ownership of voting rights - 75% or more → OE
  • 7
    TUCKER'S BROOK MANAGEMENT COMPANY LIMITED
    05435242
    Active Corporate (9 parents)
    Officer
    2018-07-07 ~ now
    IIF 7 - Director → ME
  • 8
    UK HYDROGEN AND FUEL CELL ASSOCIATION
    - now 05806226
    UNITED KINGDOM HYDROGEN ASSOCIATION
    - 2010-12-07 05806226
    Active Corporate (13 parents)
    Officer
    2006-05-04 ~ 2020-03-09
    IIF 4 - Director → ME
  • 9
    WASTE2TRICITY LIMITED
    06708968
    Dissolved Corporate (20 parents, 2 offsprings)
    Officer
    2014-04-10 ~ 2014-11-30
    IIF 2 - Director → ME

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