Company
Amentum Clean Energy International Limited
Official record Companies House · updated 20th September 2026 · Sources
Network
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Who leads it
Previous officers 27
- Roy Barrie Carter 2020–2026 View profile
- Sion Erwyd Edwards 2019–2020 View profile
- Paul David Wood 2016–2019 View profile
- Ellen Lyons 2016–2026 View profile
- Terry Peter Frank Inns 2015–2016 View profile
- Thomas Leslie Jones 2014–2016 View profile
- Andrew John White 2014–2025 View profile
- Rachael Isles 2014–2016 View profile
- Julie Davin 2012–2014 View profile
- Iain Geoffrey Clarkson 2008–2014 View profile
- Kevin Smith 2007–2012 View profile
- Steve Sadler 2005–2008 View profile
- Peter Desmond Higton 2005–2007 View profile
- Philip Nicholas Lanigan 1999–2005 View profile
- Paul Richard Kershaw 1998–2005 View profile
- John Stanley Marlor 1996–1999 View profile
- Fraser Lionel Ashman 1996–1999 View profile
- John Graham Durston 1996–1998 View profile
- Geoffrey Roberts 2023–2024 View profile
- Rhona Mary Holman 2023–2023 View profile
- Chaudhary, Tejender Singh, Mr 2020–2023 View profile
- Iain Angus Jones 2019–2020 View profile
- Anthony Mark Thomas 2018–2019 View profile
- Jennifer Ann Warburton 2016–2018 View profile
- Christopher Laskey Fidler 2009–2016 View profile
- Colin Fellowes 2006–2009 View profile
- Frazer Anthony Don Carolis 1996–2006 View profile
Directors and secretaries as filed at Companies House.
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About
- Incorporated
- 08/10/1996
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.
- Amentum Clean Energy Limited
75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06
Group
- Amentum Clean Energy International Limited
is controlled by Amentum Clean Energy Limited
Evidence
active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register - 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 - 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
- CH2M Hill Europe Limited
- Transcend Partners Limited
- Halcrow (Consulting Engineers & Architects) Limited
- Halcrow Group Limited
- SIR William Halcrow & Partners Limited
- CH2M Hill United Kingdom
- 02312495
- PWR Power Projects Limited
- Halcrow Asia Partnership Limited
- National Nuclear Corporation Limited
- Amentum E&C Limited
- Halcrow International Partnership
- Amentum Enterprise Asset Solutions Construction Limited
- Halcrow Asia Limited
- Amentum Enterprise Asset Solutions Limited
- Halcrow Holdings Limited
- CH2M Hill Services Limited
- Energy, Safety and Risk Consultants (UK) Limited
- Yolles Partnership Limited
- Amentum Clean Energy Limited
- 02326761
- Fast Reactor Technology Limited
- Halcrow Water Services Limited
- Energy, Security and Technology UK Limited
- Transmark Asia Limited
- Amentum International Nuclear Services Limited
- SC136186
- Halcrow Canada Limited
- Halcrow International Limited
- CH2M Hill Holdings Limited
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 for researchers
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.
2 directors on the board
- Loren Michael Jones Director · appointed 2025
- Martin Warwick Shaw Director · appointed 2026
First-time vs portfolio directors
Portfolio (2)
- Loren Michael Jones Director · appointed 2025
- Martin Warwick Shaw Director · appointed 2026
Left in the last 12 months
- Andrew John White Director · appointed 2014 · resigned 2025
- Ellen Lyons Director · appointed 2016 · resigned 2026
- Roy Barrie Carter Director · appointed 2020 · resigned 2026
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.
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.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- 03260477
- Status
- Active
- Type
- Private Limited Company
- Edition
- Register edition compiled 20th September 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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