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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

Riordan, Thomas James

    Related profiles found in government register
  • Riordan, Thomas James
    American lawyer born in January 1950

    Resident in United States

    Registered addresses and corresponding companies
  • Riordan, Thomas James
    American senior vice pres, law & admin, secretary, rockwood born in January 1950

    Resident in United States

    Registered addresses and corresponding companies
    • icon of address Denbigh Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1PB

      IIF 15
child relation
Offspring entities and appointments
Active 1
  • 1
    LAPORTE ABSORBENTS (BAULKING) LIMITED - 2000-12-22
    LAPORTE EARTHS (BAULKING) LIMITED - 1991-03-15
    BRETT BENTONITE LIMITED - 1986-08-12
    icon of address C/o Rockwood Additives Limited, Moorfield Road, Widnes, Cheshire
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2000-11-20 ~ dissolved
    IIF 8 - Director → ME
Ceased 14
  • 1
    ROCKWOOD ADDITIVES LIMITED - 2013-10-03
    BRIDLEVIEW LIMITED - 2001-04-06
    icon of address Moorfield Road, Widnes, Cheshire
    Active Corporate (4 parents)
    Officer
    icon of calendar 2000-11-08 ~ 2013-09-25
    IIF 6 - Director → ME
  • 2
    icon of address 400 Capability Green, Luton, Bedfordshire
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2000-11-20 ~ 2015-01-12
    IIF 10 - Director → ME
  • 3
    icon of address 400 Capability Green, Luton, Bedfordshire
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2000-11-08 ~ 2015-01-12
    IIF 4 - Director → ME
  • 4
    icon of address Unit 2 Genesis Business Park Albert Drive, Sheerwater, Woking, Surrey, United Kingdom
    Active Corporate (5 parents)
    Officer
    icon of calendar 2000-11-20 ~ 2007-12-31
    IIF 11 - Director → ME
  • 5
    icon of address Oxerra Uk Limited Liverpool Road East, Kidsgrove, Stoke-on-trent, Staffordshire, England
    Active Corporate (4 parents, 2 offsprings)
    Equity (Company account)
    9,000 GBP2024-12-31
    Officer
    icon of calendar 2000-11-08 ~ 2014-10-01
    IIF 5 - Director → ME
  • 6
    MINXWAY LIMITED - 2007-08-30
    icon of address Oxerra Uk Limited Liverpool Road East, Kidsgrove, Stoke-on-trent, Staffordshire, England
    Active Corporate (4 parents)
    Profit/Loss (Company account)
    -177,597 GBP2024-01-01 ~ 2024-12-31
    Officer
    icon of calendar 2007-08-23 ~ 2014-09-30
    IIF 13 - Director → ME
  • 7
    MICRO-IMAGE TECHNOLOGY LIMITED - 2001-03-15
    OM GROUP ULTRA PURE CHEMICALS LIMITED - 2013-06-25
    CMC MATERIALS UPC LIMITED - 2024-12-31
    KMG ULTRA PURE CHEMICALS LIMITED - 2020-10-02
    ROCKWOOD ELECTRONIC MATERIALS LIMITED - 2008-02-05
    icon of address 8th Floor 100 Bishopsgate, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 2000-11-20 ~ 2007-12-31
    IIF 12 - Director → ME
  • 8
    HOPEBRIDGE LIMITED - 2001-03-27
    CSI WOOD PROTECTION LIMITED - 2013-08-05
    icon of address Park Road Industrial Estate, Park Road, Barrow-in-furness, Cumbria
    Active Corporate (5 parents)
    Officer
    icon of calendar 2000-11-08 ~ 2013-08-01
    IIF 2 - Director → ME
  • 9
    DON ALUM LIMITED - 1994-04-11
    INORGPIGMENTS LIMITED - 1994-08-04
    icon of address Oxerra Uk Limited Liverpool Road East, Kidsgrove, Stoke-on-trent, Staffordshire, England
    Active Corporate (4 parents)
    Equity (Company account)
    100,000 GBP2024-12-31
    Officer
    icon of calendar 2000-11-20 ~ 2014-09-30
    IIF 3 - Director → ME
  • 10
    LAPORTE ALPHAGARY LIMITED - 1999-08-26
    ALPHAGARY LIMITED - 2016-02-15
    ERIELAKE LIMITED - 1981-12-31
    EVODE PLASTICS LIMITED - 1997-04-28
    icon of address C/o Mexichem 8 Beler Way, Leicester Road Industrial Estate, Melton Mowbray, Leicestershire
    Active Corporate (4 parents)
    Officer
    icon of calendar 2000-11-20 ~ 2011-01-07
    IIF 9 - Director → ME
  • 11
    ROCKWOOD PIGMENTS (UK) LIMITED - 2014-10-16
    G.P.V. (U.K.) LIMITED - 2000-01-04
    VENATOR PIGMENTS UK LIMITED - 2023-04-13
    HUNTSMAN PIGMENTS (UK) LIMITED - 2018-03-19
    LAPORTE PIGMENTS (UK) LIMITED - 2000-12-22
    icon of address Oxerra Uk Limited Liverpool Road East, Kidsgrove, Stoke-on-trent, Staffordshire, England
    Active Corporate (4 parents)
    Profit/Loss (Company account)
    -345,395 GBP2024-01-01 ~ 2024-12-31
    Officer
    icon of calendar 2000-11-20 ~ 2014-09-30
    IIF 14 - Director → ME
  • 12
    CHEMETALL LTD - 2000-06-30
    CETEMA LIMITED - 1993-07-12
    CHEMETALL SPECIALITY CHEMICALS LIMITED - 2012-10-09
    CETEMA U.K. LIMITED - 1986-04-07
    icon of address Eversheds House, 70 Great Bridgewater Street, Manchester, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2012-10-26 ~ 2015-01-12
    IIF 15 - Director → ME
  • 13
    CITRUSBAY LIMITED - 2000-12-22
    icon of address C/o Csc Cls (uk) Limited 5 Churchill Place, 10th Floor, London, United Kingdom
    Active Corporate (3 parents)
    Officer
    icon of calendar 2000-11-08 ~ 2015-01-12
    IIF 7 - Director → ME
  • 14
    icon of address C/o Csc Cls (uk) Limited 5 Churchill Place, 10th Floor, London, United Kingdom
    Active Corporate (3 parents)
    Officer
    icon of calendar 2014-05-20 ~ 2015-01-12
    IIF 1 - Director → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.