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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company 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 45
  • 1
    Marlor, John Stanley
    Born in October 1949
    Individual (16 offsprings)
    Officer
    1994-07-15 ~ 1999-09-06
    OF - Director → CIF 0
  • 2
    Kershaw, Paul Richard
    Born in January 1954
    Individual (14 offsprings)
    Officer
    1998-05-11 ~ 2005-01-27
    OF - Director → CIF 0
  • 3
    Warburton, Jennifer Ann
    Individual (128 offsprings)
    Officer
    2016-07-22 ~ 2018-02-16
    OF - Secretary → CIF 0
  • 4
    Hughes, Michael John
    Born in August 1962
    Individual (8 offsprings)
    Officer
    2014-03-31 ~ now
    OF - Director → CIF 0
  • 5
    Taylor, Derek
    Born in April 1930
    Individual (4 offsprings)
    Officer
    (before 1991-07-06) ~ 1994-04-30
    OF - Director → CIF 0
  • 6
    Durston, John Graham
    Born in October 1943
    Individual (8 offsprings)
    Officer
    1993-12-10 ~ 1998-05-11
    OF - Director → CIF 0
  • 7
    Sadler, Steve
    Born in February 1968
    Individual (38 offsprings)
    Officer
    2005-01-01 ~ 2008-01-31
    OF - Director → CIF 0
  • 8
    Holman, Rhona Mary
    Individual (42 offsprings)
    Officer
    2023-02-10 ~ 2023-08-21
    OF - Secretary → CIF 0
  • 9
    Clarkson, Iain Geoffrey
    Born in February 1967
    Individual (42 offsprings)
    Officer
    2008-02-01 ~ 2016-01-21
    OF - Director → CIF 0
  • 10
    Smith, Kevin
    Born in March 1953
    Individual (16 offsprings)
    Officer
    2007-05-21 ~ 2012-07-02
    OF - Director → CIF 0
  • 11
    Hutchinson, Anthony Peter
    Born in December 1948
    Individual (21 offsprings)
    Officer
    (before 1991-07-06) ~ 1994-05-27
    OF - Director → CIF 0
  • 12
    Davin, Julie
    Born in April 1972
    Individual (11 offsprings)
    Officer
    2012-07-02 ~ 2014-03-31
    OF - Director → CIF 0
  • 13
    Ingham, Eric Leslie
    Born in May 1947
    Individual (5 offsprings)
    Officer
    1999-09-06 ~ 2003-12-31
    OF - Director → CIF 0
  • 14
    Fellowes, Colin
    Individual (95 offsprings)
    Officer
    2006-04-01 ~ 2009-06-16
    OF - Secretary → CIF 0
  • 15
    Miles, Sally Linda Joyce
    Born in September 1979
    Individual (40 offsprings)
    Officer
    2020-06-26 ~ 2021-12-01
    OF - Director → CIF 0
  • 16
    Ashman, Fraser Lionel
    Born in July 1946
    Individual (11 offsprings)
    Officer
    (before 1991-07-06) ~ 1999-06-30
    OF - Director → CIF 0
    Ashman, Fraser Lionel
    Individual (11 offsprings)
    Officer
    (before 1991-07-06) ~ 1991-12-31
    OF - Secretary → CIF 0
  • 17
    Prentice, Joshua David
    Individual (15 offsprings)
    Officer
    2024-06-01 ~ now
    OF - Secretary → CIF 0
  • 18
    Boath, David Hunter
    Born in April 1960
    Individual (7 offsprings)
    Officer
    2002-06-25 ~ 2010-11-10
    OF - Director → CIF 0
  • 19
    Smith, Derek Randall
    Born in January 1928
    Individual (1 offspring)
    Officer
    (before 1991-07-06) ~ 1991-01-31
    OF - Director → CIF 0
  • 20
    White, Andrew John
    Born in August 1966
    Individual (9 offsprings)
    Officer
    2024-12-06 ~ 2025-09-30
    OF - Director → CIF 0
  • 21
    Roberts, Geoffrey
    Individual (50 offsprings)
    Officer
    2023-08-21 ~ 2024-06-01
    OF - Secretary → CIF 0
  • 22
    White, Clive Thomas
    Born in May 1962
    Individual (19 offsprings)
    Officer
    2002-06-25 ~ 2021-08-16
    OF - Director → CIF 0
  • 23
    Okeeffe, Nicola Jayne
    Born in November 1971
    Individual (22 offsprings)
    Officer
    2016-01-21 ~ 2020-06-26
    OF - Director → CIF 0
  • 24
    Lanigan, Philip Nicholas
    Born in May 1964
    Individual (88 offsprings)
    Officer
    1999-11-01 ~ 2005-09-30
    OF - Director → CIF 0
  • 25
    George, Brian Victor
    Born in February 1936
    Individual (17 offsprings)
    Officer
    1995-12-01 ~ 1999-09-06
    OF - Director → CIF 0
  • 26
    Llambias, John Manuel, Dr
    Born in February 1960
    Individual (10 offsprings)
    Officer
    2004-01-01 ~ 2004-06-14
    OF - Director → CIF 0
  • 27
    Higton, Peter Desmond
    Born in March 1956
    Individual (14 offsprings)
    Officer
    1999-09-06 ~ 2007-03-09
    OF - Director → CIF 0
  • 28
    Davidson, Robert James, Sir
    Born in July 1928
    Individual (6 offsprings)
    Officer
    (before 1991-07-06) ~ 1991-06-30
    OF - Director → CIF 0
  • 29
    Newlands, David Baxter
    Born in September 1946
    Individual (37 offsprings)
    Officer
    (before 1991-07-06) ~ 1995-12-01
    OF - Director → CIF 0
  • 30
    Thomas, Anthony Mark
    Individual (13 offsprings)
    Officer
    2018-02-16 ~ 2019-03-08
    OF - Secretary → CIF 0
  • 31
    Longbottom, Christopher John
    Born in December 1956
    Individual (4 offsprings)
    Officer
    2002-06-25 ~ 2004-06-10
    OF - Director → CIF 0
  • 32
    Fidler, Christopher Laskey
    Individual (199 offsprings)
    Officer
    2009-06-16 ~ 2016-07-22
    OF - Secretary → CIF 0
  • 33
    Routledge, Kevin Timothy
    Born in July 1951
    Individual (21 offsprings)
    Officer
    1999-09-06 ~ 2006-02-06
    OF - Director → CIF 0
  • 34
    Jones, Loren Michael
    Born in March 1984
    Individual (13 offsprings)
    Officer
    2025-10-01 ~ now
    OF - Director → CIF 0
  • 35
    Jones, Iain Angus
    Individual (211 offsprings)
    Officer
    2019-04-26 ~ 2020-03-06
    OF - Secretary → CIF 0
  • 36
    Wiemelt, Karen
    Born in November 1963
    Individual (6 offsprings)
    Officer
    2021-08-16 ~ 2024-01-12
    OF - Director → CIF 0
  • 37
    Linseisen, Anita
    Born in November 1965
    Individual (8 offsprings)
    Officer
    2021-12-01 ~ 2024-10-21
    OF - Director → CIF 0
  • 38
    Allan, Stuart John, Dr
    Born in December 1943
    Individual (3 offsprings)
    Officer
    2002-06-25 ~ 2005-12-31
    OF - Director → CIF 0
  • 39
    Shaw, Martin Warwick
    Born in September 1967
    Individual (12 offsprings)
    Officer
    2024-12-06 ~ now
    OF - Director → CIF 0
  • 40
    Don Carolis, Frazer Anthony
    Individual (13 offsprings)
    Officer
    1992-01-01 ~ 2006-04-01
    OF - Secretary → CIF 0
  • 41
    Chaudhary, Tejender Singh, Mr
    Individual (67 offsprings)
    Officer
    2020-06-26 ~ 2023-02-10
    OF - Secretary → CIF 0
  • 42
    Trawber, John Joseph
    Born in September 1947
    Individual (4 offsprings)
    Officer
    1999-09-06 ~ 2004-07-31
    OF - Director → CIF 0
  • 43
    ENERGY, SECURITY AND TECHNOLOGY UK LIMITED
    15475788
    305, Bridgewater Place, Birchwood Park, Warrington, United Kingdom
    Active Corporate (14 parents, 7 offsprings)
    Person with significant control
    2024-06-12 ~ now
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
  • 44
    JACOBS U.K. LIMITED
    - now 02594504 SC141100
    JACOBS ENGINEERING U.K. LIMITED - 2012-07-30
    JACOBS ENGINEERING LIMITED - 1999-08-03
    H&G PROCESS CONTRACTING LIMITED - 1993-12-17
    687TH SHELF TRADING COMPANY LIMITED - 1992-01-21
    Cottons Centre, Cottons Lane, London, United Kingdom
    Active Corporate (66 parents, 20 offsprings)
    Person with significant control
    2020-03-06 ~ 2024-06-12
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
  • 45
    WOOD FINANCE UK LIMITED - now
    WOOD NUCLEAR HOLDINGS LIMITED
    - 2022-01-24 03725076
    AMEC FOSTER WHEELER NUCLEAR HOLDINGS LIMITED - 2018-09-03 03725076 00163609
    AMEC NUCLEAR HOLDINGS LIMITED - 2014-12-12
    NNC HOLDINGS LIMITED - 2005-08-08
    Booths Park, Chelford Road, Knutsford, Cheshire, England
    Active Corporate (39 parents, 7 offsprings)
    Person with significant control
    2016-04-06 ~ 2020-03-06
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
parent relation
Company in focus

AMENTUM CLEAN ENERGY LIMITED

Period: 2024-09-30 ~ now
Company number: 01120437
Registered names
AMENTUM CLEAN ENERGY LIMITED - now 03260477
AMEC NNC LIMITED - 2007-09-03
Standard Industrial Classification
71122 - Engineering Related Scientific And Technical Consulting Activities
42220 - Construction Of Utility Projects For Electricity And Telecommunications
71121 - Engineering Design Activities For Industrial Process And Production
71200 - Technical Testing And Analysis

Related profiles found in government register
  • AMENTUM CLEAN ENERGY LIMITED
    Info
    JACOBS CLEAN ENERGY LIMITED - 2024-09-30
    WOOD NUCLEAR LIMITED - 2024-09-30
    AMEC FOSTER WHEELER NUCLEAR UK LIMITED - 2024-09-30
    AMEC NUCLEAR UK LIMITED - 2024-09-30
    AMEC NNC LIMITED - 2024-09-30
    NNC LIMITED - 2024-09-30
    NATIONAL NUCLEAR CORPORATION LIMITED - 2024-09-30
    Registered number 01120437
    305 Bridgewater Place, Birchwood Park, Warrington WA3 6XF
    PRIVATE LIMITED COMPANY incorporated on 1973-06-28 (52 years 9 months). The status of the company number is Active.
    The last date of confirmation statement was made at 2025-04-10
    CIF 0
  • AMENTUM CLEAN ENERGY LIMITED
    S
    Registered number 01120437
    305, Bridgewater Place, Birchwood Park, Warrington, United Kingdom, WA3 6XG
    Private Company Limited By Shares in Companies House, United Kingdom
    CIF 1 CIF 2 CIF 3
child relation
Offspring entities and appointments 4
  • 1
    ALKALI METAL PROCESSING LIMITED
    15030946
    33 Wigmore Street, London, United Kingdom
    Active Corporate (7 parents)
    Person with significant control
    2023-07-26 ~ now
    CIF 4 - Ownership of shares – More than 25% but not more than 50% OE
    CIF 4 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 2
    AMENTUM CLEAN ENERGY INTERNATIONAL LIMITED
    - now 03260477 01120437
    JACOBS CLEAN ENERGY INTERNATIONAL LIMITED
    - 2024-09-30 03260477
    AMEC FOSTER WHEELER NUCLEAR INTERNATIONAL LIMITED
    - 2020-03-18 03260477 03203966
    AMEC NUCLEAR INTERNATIONAL LIMITED - 2014-12-16
    NNC LIMITED - 2008-09-24
    TECHNICA LIMITED - 2005-08-18
    UNITED DECOMMISSIONING TECHNOLOGIES LIMITED - 2003-04-16
    LEADERS IN BUSINESS LIMITED - 1996-11-18
    305 Bridgewater Place, Birchwood Park, Warrington, United Kingdom
    Active Corporate (32 parents, 1 offspring)
    Person with significant control
    2016-04-06 ~ now
    CIF 3 - Right to appoint or remove directors OE
    CIF 3 - Ownership of shares – 75% or more OE
    CIF 3 - Ownership of voting rights - 75% or more OE
  • 3
    FAST REACTOR TECHNOLOGY LIMITED
    01853864
    305 Bridgewater Place, Birchwood Park, Warrington, United Kingdom
    Active Corporate (44 parents)
    Person with significant control
    2016-04-06 ~ now
    CIF 1 - Ownership of voting rights - More than 50% but less than 75% OE
    CIF 1 - Right to appoint or remove directors OE
    CIF 1 - Ownership of shares – More than 50% but less than 75% OE
  • 4
    PWR POWER PROJECTS LIMITED
    - now 02281663
    POLARSTOCK LIMITED - 1988-10-14
    305 Bridgewater Place, Birchwood Park, Warrington, United Kingdom
    Active Corporate (50 parents)
    Person with significant control
    2016-04-06 ~ now
    CIF 2 - Ownership of voting rights - More than 25% but not more than 50% OE
    CIF 2 - Ownership of shares – More than 25% but not more than 50% OE

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.