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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

Watt, John Henry, Dr

child relation
Offspring entities and appointments 21
  • 1
    DATASTRIP LIMITED
    - now 02172158
    KEY STRIP LIMITED
    - 1994-03-23 02172158
    BARDEP 101 LIMITED - 1988-03-16
    Dissolved Corporate (15 parents)
    Officer
    1993-10-21 ~ 1995-08-24
    IIF 19 - Director → ME
  • 2
    DR JOHN H WATT LIMITED
    08255921
    Dissolved Corporate (2 parents)
    Officer
    2012-10-16 ~ dissolved
    IIF 3 - Director → ME
  • 3
    GMSR LIMITED
    - now 08781438
    GLASS MICRO SPHERES LIMITED
    - 2016-01-15 08781438
    Dissolved Corporate (6 parents)
    Officer
    2013-11-19 ~ dissolved
    IIF 2 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 24 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 24 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 4
    INTERNATIONAL CENOSPHERES LTD
    10328018
    Dissolved Corporate (3 parents)
    Officer
    2016-08-12 ~ dissolved
    IIF 5 - Director → ME
    Person with significant control
    2016-08-12 ~ dissolved
    IIF 22 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 22 - Ownership of shares – More than 25% but not more than 50% → OE
  • 5
    OLDCO (02751052) LIMITED - now
    DATASTRIP SYSTEMS LIMITED
    - 2011-12-07 02751052
    Dissolved Corporate (12 parents)
    Officer
    1992-10-15 ~ 1995-01-31
    IIF 15 - Director → ME
  • 6
    PHOENIX TECHNICAL DEVELOPMENTS LIMITED
    10336289
    Dissolved Corporate (4 parents)
    Officer
    2016-08-18 ~ dissolved
    IIF 4 - Director → ME
    Person with significant control
    2016-08-18 ~ 2016-12-01
    IIF 25 - Ownership of shares – 75% or more → OE
    IIF 25 - Ownership of voting rights - 75% or more → OE
    IIF 25 - Right to appoint or remove directors → OE
  • 7
    PRIAM ECO-TECHNOLOGIES LIMITED
    08915799
    Dissolved Corporate (2 parents)
    Officer
    2014-02-27 ~ dissolved
    IIF 1 - Director → ME
  • 8
    ROCKTRON (ABERTHAW) LIMITED
    04145819
    Dissolved Corporate (10 parents)
    Officer
    2005-03-24 ~ dissolved
    IIF 11 - Director → ME
  • 9
    ROCKTRON (GALE COMMON) LIMITED
    04522697
    Dissolved Corporate (8 parents)
    Officer
    2005-03-24 ~ dissolved
    IIF 20 - Director → ME
  • 10
    ROCKTRON HOLDINGS LIMITED
    - now 07424217 05971625
    SEVCO (5043) LIMITED
    - 2010-11-04 07424217 07495908... (more)
    Dissolved Corporate (7 parents)
    Officer
    2010-10-29 ~ 2014-06-12
    IIF 12 - Director → ME
  • 11
    ROCKTRON INTERNATIONAL LIMITED
    - now 05971625
    ROCKTRON HOLDINGS LIMITED
    - 2010-05-06 05971625 07424217
    Dissolved Corporate (14 parents)
    Officer
    2006-10-18 ~ dissolved
    IIF 17 - Director → ME
  • 12
    ROCKTRON LIMITED
    04120826 07211725
    Dissolved Corporate (23 parents)
    Officer
    2000-12-07 ~ dissolved
    IIF 10 - Director → ME
  • 13
    ROCKTRON MINERAL SERVICES LIMITED
    07359612
    Dissolved Corporate (8 parents)
    Officer
    2010-08-27 ~ 2012-02-09
    IIF 21 - Director → ME
  • 14
    ROCKTRON RESEARCH LIMITED
    04340588
    Dissolved Corporate (12 parents)
    Officer
    2005-03-24 ~ dissolved
    IIF 16 - Director → ME
  • 15
    ROCKTRON SERVICES LIMITED
    07211725 04120826
    Dissolved Corporate (2 parents)
    Officer
    2010-04-01 ~ dissolved
    IIF 13 - Director → ME
  • 16
    SALADIN HOLDINGS LIMITED
    02120198
    Dissolved Corporate (7 parents)
    Officer
    (before 1992-09-13) ~ 1993-01-31
    IIF 14 - Director → ME
  • 17
    SEMPER WATT LIMITED
    10530797 11346541... (more)
    Dissolved Corporate (2 parents)
    Officer
    2016-12-17 ~ dissolved
    IIF 6 - Director → ME
    Person with significant control
    2016-12-17 ~ dissolved
    IIF 23 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 23 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 18
    SEMPER WATT LIMITED
    - now 11346541 10530797
    SEMPER WATT 2018 LIMITED
    - 2021-04-29 11346541 10530797
    Dissolved Corporate (2 parents, 1 offspring)
    Officer
    2018-05-04 ~ dissolved
    IIF 9 - Director → ME
    Person with significant control
    2018-05-04 ~ dissolved
    IIF 26 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 26 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 19
    SSE MINERAL SOLUTIONS LIMITED - now
    ROCKTRON (WIDNES) LIMITED
    - 2010-10-19 04146274
    Dissolved Corporate (21 parents)
    Officer
    2005-03-24 ~ 2009-08-05
    IIF 18 - Director → ME
  • 20
    TECHNICAL RECYCLING LIMITED
    - now 11259065
    PRESCIENT BRAVURA LIMITED
    - 2019-03-28 11259065
    Dissolved Corporate (7 parents)
    Officer
    2019-03-28 ~ dissolved
    IIF 8 - Director → ME
  • 21
    WILTON MANAGEMENT LIMITED
    - now 02506178
    LARCHWOOD SERVICES LIMITED
    - 1991-10-17 02506178
    Dissolved Corporate (6 parents)
    Officer
    (before 1992-05-29) ~ dissolved
    IIF 7 - Director → ME
    2006-01-23 ~ dissolved
    IIF 27 - Secretary → ME

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