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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

Watt, John Henry, Dr

    Related profiles found in government register
  • Watt, John Henry, Dr
    British company chairman born in December 1935

    Resident in England

    Registered addresses and corresponding companies
    • 3 Wilton House, 87 Knightsbridge, London, SW1X 7RB

      IIF 1
  • Watt, John Henry, Dr
    British company director born in December 1935

    Resident in England

    Registered addresses and corresponding companies
    • The Corner House, 2 High Street, Aylesford, Kent, ME20 7BG, England

      IIF 2
    • The Corner House, 2 High Street, Aylesford, Kent, ME20 7BG, United Kingdom

      IIF 3 IIF 4 IIF 5
    • The Corner House, 2 High Street, Aylesford, ME20 7BG, United Kingdom

      IIF 6
    • The Corner House, 2 High Street, High Street, Aylesford, Kent, ME20 7BG, United Kingdom

      IIF 7
    • One, Redcliff Street, Bristol, BS1 6NP

      IIF 8
    • 3 Wilton House, 87 Knightsbridge, London, SW1X 7RB

      IIF 9 IIF 10 IIF 11
  • Watt, John Henry, Dr
    British director born in December 1935

    Resident in England

    Registered addresses and corresponding companies
    • The Corner House, 2 High Street, Aylesford, Kent, ME20 7BG, England

      IIF 14
    • Wessex House, Pixash Lane, Keynsham, Bristol, BS31 1TP, United Kingdom

      IIF 15 IIF 16
    • 3 Wilton House, 87 Knightsbridge, London, SW1X 7RB, United Kingdom

      IIF 17
  • Watt, John Henry, Dr
    British scientist born in December 1935

    Resident in England

    Registered addresses and corresponding companies
    • The Corner House, 2 High Street, Aylesford, Kent, ME20 7BG, England

      IIF 18 IIF 19
  • Dr John Henry Watt
    British born in December 1935

    Resident in England

    Registered addresses and corresponding companies
    • The Corner House, 2 High Street, Aylesford, Kent, ME20 7BG, England

      IIF 20 IIF 21 IIF 22
    • The Corner House, 2 High Street, High Street, Aylesford, Kent, ME20 7BG, United Kingdom

      IIF 24
  • Watt, John Henry, Dr
    British co director

    Registered addresses and corresponding companies
    • 3 Wilton House, 87 Knightsbridge, London, SW1X 7RB

      IIF 25
child relation
Offspring entities and appointments 19
  • 1
    DATASTRIP LIMITED
    - now 02172158
    KEY STRIP LIMITED
    - 1994-03-23 02172158
    BARDEP 101 LIMITED - 1988-03-16
    Deloitte Llp, Hill House 1 Little New Street, London
    Dissolved Corporate (13 parents)
    Officer
    1993-10-21 ~ 1995-08-24
    IIF 1 - Director → ME
  • 2
    DR JOHN H WATT LIMITED
    08255921
    The Corner House, 2 High Street, Aylesford, Kent
    Dissolved Corporate (2 parents)
    Officer
    2012-10-16 ~ dissolved
    IIF 14 - Director → ME
  • 3
    GMSR LIMITED
    - now 08781438
    GLASS MICRO SPHERES LIMITED
    - 2016-01-15 08781438
    The Corner House, 2 High Street, Aylesford, Kent
    Dissolved Corporate (6 parents)
    Equity (Company account)
    -21,495 GBP2016-11-30
    Officer
    2013-11-19 ~ dissolved
    IIF 19 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 22 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 22 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 4
    INTERNATIONAL CENOSPHERES LTD
    10328018
    The Corner House, 2 High Street, Aylesford, Kent, England
    Dissolved Corporate (3 parents)
    Officer
    2016-08-12 ~ dissolved
    IIF 3 - Director → ME
    Person with significant control
    2016-08-12 ~ dissolved
    IIF 20 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 20 - Ownership of shares – More than 25% but not more than 50% OE
  • 5
    OLDCO (02751052) LIMITED - now
    DATASTRIP SYSTEMS LIMITED
    - 2011-12-07 02751052
    Deloitte Llp, Hill House 1 Little New Street, London
    Dissolved Corporate (10 parents)
    Officer
    1992-10-15 ~ 1995-01-31
    IIF 10 - Director → ME
  • 6
    PHOENIX TECHNICAL DEVELOPMENTS LIMITED
    10336289
    The Corner House, 2 High Street, Aylesford, Kent, England
    Dissolved Corporate (4 parents)
    Equity (Company account)
    100 GBP2019-08-31
    Officer
    2016-08-18 ~ dissolved
    IIF 2 - Director → ME
    Person with significant control
    2016-08-18 ~ 2016-12-01
    IIF 23 - Right to appoint or remove directors OE
    IIF 23 - Ownership of voting rights - 75% or more OE
    IIF 23 - Ownership of shares – 75% or more OE
  • 7
    PRIAM ECO-TECHNOLOGIES LIMITED
    08915799
    The Corner House, 2 High Street, Aylesford, Kent, England
    Dissolved Corporate (2 parents)
    Officer
    2014-02-27 ~ dissolved
    IIF 18 - Director → ME
  • 8
    ROCKTRON HOLDINGS LIMITED
    - now 07424217 05971625
    SEVCO (5043) LIMITED
    - 2010-11-04 07424217
    Unit 25 Merretts Mill Industrial Estate Bath Road, Woodchester, Stroud, Gloucestershire, England
    Dissolved Corporate (7 parents)
    Officer
    2010-10-29 ~ 2014-06-12
    IIF 15 - Director → ME
  • 9
    ROCKTRON INTERNATIONAL LIMITED
    - now 05971625
    ROCKTRON HOLDINGS LIMITED
    - 2010-05-06 05971625 07424217
    One, Redcliff Street, Bristol
    Dissolved Corporate (12 parents)
    Officer
    2006-10-18 ~ dissolved
    IIF 12 - Director → ME
  • 10
    ROCKTRON LIMITED
    04120826 07211725
    One, Redcliff Street, Bristol
    Dissolved Corporate (21 parents)
    Officer
    2000-12-07 ~ dissolved
    IIF 8 - Director → ME
  • 11
    ROCKTRON MINERAL SERVICES LIMITED
    07359612
    2nd Floor 40 Queen Square, Bristol
    Dissolved Corporate (6 parents)
    Officer
    2010-08-27 ~ 2012-02-09
    IIF 17 - Director → ME
  • 12
    ROCKTRON RESEARCH LIMITED
    04340588
    1 Redcliff Street, Bristol
    Dissolved Corporate (10 parents)
    Officer
    2005-03-24 ~ dissolved
    IIF 11 - Director → ME
  • 13
    ROCKTRON SERVICES LIMITED
    07211725 04120826
    Wessex House, Pixash Lane, Keynsham, Bristol, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    2010-04-01 ~ dissolved
    IIF 16 - Director → ME
  • 14
    SALADIN HOLDINGS LIMITED
    02120198
    7 Abingdon Road, London
    Dissolved Corporate (7 parents)
    Officer
    ~ 1993-01-31
    IIF 9 - Director → ME
  • 15
    SEMPER WATT LIMITED
    10530797 11346541, 11346541
    The Corner House, 2 High Street, Aylesford, Kent, England
    Dissolved Corporate (2 parents)
    Officer
    2016-12-17 ~ dissolved
    IIF 4 - Director → ME
    Person with significant control
    2016-12-17 ~ dissolved
    IIF 21 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 21 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 16
    SEMPER WATT LIMITED
    - now 11346541 10530797
    SEMPER WATT 2018 LIMITED
    - 2021-04-29 11346541 10530797
    The Corner House 2 High Street, High Street, Aylesford, Kent, United Kingdom
    Dissolved Corporate (2 parents, 1 offspring)
    Equity (Company account)
    42,250 GBP2023-05-31
    Officer
    2018-05-04 ~ dissolved
    IIF 7 - Director → ME
    Person with significant control
    2018-05-04 ~ dissolved
    IIF 24 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 24 - Ownership of shares – More than 25% but not more than 50% OE
  • 17
    SSE MINERAL SOLUTIONS LIMITED - now
    ROCKTRON (WIDNES) LIMITED
    - 2010-10-19 04146274
    No.1 Forbury Place, 43 Forbury Road, Reading, United Kingdom
    Dissolved Corporate (21 parents)
    Officer
    2005-03-24 ~ 2009-08-05
    IIF 13 - Director → ME
  • 18
    TECHNICAL RECYCLING LIMITED
    - now 11259065
    PRESCIENT BRAVURA LIMITED
    - 2019-03-28 11259065
    The Corner House, 2 High Street, Aylesford, United Kingdom
    Dissolved Corporate (7 parents)
    Net Assets/Liabilities (Company account)
    62,505 GBP2021-03-31
    Officer
    2019-03-28 ~ dissolved
    IIF 6 - Director → ME
  • 19
    WILTON MANAGEMENT LIMITED
    - now 02506178
    LARCHWOOD SERVICES LIMITED
    - 1991-10-17 02506178
    Cornwallis House, Pudding Lane, Maidstone, Kent
    Dissolved Corporate (4 parents)
    Officer
    ~ dissolved
    IIF 5 - Director → ME
    2006-01-23 ~ dissolved
    IIF 25 - Secretary → ME

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