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Fast Reactor Technology Limited

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Official record Companies House · updated 27th September 2026 · Sources

Network

The large node is Fast Reactor Technology Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 40

  1. Anita Linseisen 2021-2024 Director View profile
  2. Sally Linda Joyce Miles 2020-2021 Director View profile
  3. Nicola Jayne O'Keeffe 2016-2020 Director View profile
  4. Michael John Hughes 2014-2026 Director View profile
  5. Julie Davin 2012-2014 Director View profile
  6. Jennifer Margaret Owen 2011-2012 Director View profile
  7. Iain Geoffrey Clarkson 2008-2016 Director View profile
  8. Philip Roper 2007-2010 Director View profile
  9. Kevin Smith 2007-2012 Director View profile
  10. Steve Sadler 2005-2008 Director View profile
  11. Ralph Turvill Watts 2005-2009 Director View profile
  12. Peter Desmond Higton 2005-2007 Director View profile
  13. David Loughborough 2004-2005 Director View profile
  14. Philip Leslie Holden 2001-2004 Director View profile
  15. Keith John Russell 2001-2007 Director View profile
  16. Alan Duncan Knipe 2000-2001 Director View profile
  17. Philip Nicholas Lanigan 1999-2005 Director View profile
  18. Dr Christopher John Wright 1998-2000 Director View profile
  19. Paul Richard Kershaw 1998-2005 Director View profile
  20. Michael Pilbeam 1997-1998 Director View profile
  21. Charles Picker 1995-2001 Director View profile
  22. Geoffrey John Lloyd 1994-1997 Director View profile
  23. Colin John Hearsey 1994-1995 Director View profile
  24. Derek Taylor 1991-1994 Director View profile
  25. Deon Arthur Ward 1991-1995 Director View profile
  26. Dr Brian Leonard Eyre 1990 Director View profile
  27. James Russell Bretherton 1994 Director View profile
  28. Arthur Green 1991 Director View profile
  29. Anthony Malcolm Broomfield 1994 Director View profile
  30. John Graham Durston 1998 Director View profile
  31. Geoffrey Roberts 2023-2024 Secretary View profile
  32. Rhona Mary Holman 2023-2023 Secretary View profile
  33. Chaudhary, Tejender Singh, Mr 2020-2023 Secretary View profile
  34. Iain Angus Jones 2019-2020 Secretary View profile
  35. Anthony Mark Thomas 2018-2019 Secretary View profile
  36. Jennifer Ann Warburton 2016-2018 Secretary View profile
  37. Christopher Laskey Fidler 2009-2016 Secretary View profile
  38. Colin Fellowes 2006-2009 Secretary View profile
  39. Frazer Anthony Don Carolis 1992-2006 Secretary View profile
  40. Fraser Lionel Ashman 1999 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
09/10/1984

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

Group

  1. Fast Reactor Technology Limited is controlled by Amentum Clean Energy Limited
    Evidence
    active 50-75% shares, 50-75% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  2. Amentum Clean Energy Limited is controlled by Energy, Security and Technology UK Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2024-06-12 · source: Companies House PSC register
  3. Energy, Security and Technology UK Limited is controlled by CH2M Hill Holdings Limited
    Evidence
    ceased 75-100% shares, 75-100% voting, appoints directors · notified 2024-02-09, ceased 2024-06-06 · source: Companies House PSC register

Ultimately controlled by CH2M Hill Holdings Limited.

30 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

1 directors on the board

1.7y median 1.7y
average tenure
1.7y
longest tenure
0
directors past 6 years

First-time vs portfolio directors

Portfolio (1)

0
also govern a charity

Left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Professional services 7Construction 4Manufacturing 1Utilities 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • A single director - no second pair of eyes on any decision

Where to look Suggested search: a second director to remove single-point control.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
01853864
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 27th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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