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UK PUBLIC-SECTOR SUPPLIER

Companies House 01120437 · United Kingdom

Amentum Clean Energy Limited

Amentum Clean Energy Limited is a supplier to UK public-sector buyers. This profile aggregates its public-record contract wins — who it sells to, what it supplies, latest awards and activity over time.

Data period: 2024-10-17 to 2026-11-08Updated 2026-11-08

90

Contracts won

33

Public buyers

12

Categories

2024

Active since

According to ENKII, Amentum Clean Energy Limited has won 90 UK public-sector contracts from 33 public buyers across 12 procurement categories between 2024-10-17 and 2026-11-08, most recently working with Sellafield Limited.

Public-sector buyers

Who Amentum Clean Energy Limited supplies

The UK public bodies Amentum Clean Energy Limited has won the most contracts from.

BuyerContracts won
Sellafield Limited3
Great British Energy - Nuclear2
Sellafield Limited4
Ministry of Defence1
Sellafield Ltd10
Defence Infrastructure Organisation1
Nuclear Waste Services8
UK Research & Innovation (UKRI)1
Nuclear Restoration Services Limited (Dounreay)5
Nuclear Decommissioning Authority7

What they supply

Amentum Clean Energy Limited's public-sector categories

Common Procurement Vocabulary (CPV) breakdown of contracts won over the reporting period.

Architectural, construction, engineering and inspection services

71
23 contracts won

Research and development services and related consultancy services

73
16 contracts won

Other community, social and personal services

98
14 contracts won

Sewage, refuse, cleaning and environmental services

90
11 contracts won

Business services: law, marketing, consulting, recruitment, printing and security

79
6 contracts won

IT services: consulting, software development, Internet and support

72
4 contracts won

Laboratory, optical and precision equipments (excl. glasses)

38
4 contracts won

Software package and information systems

48
4 contracts won

Construction work

45
3 contracts won

Education and training services

80
2 contracts won

Security, fire-fighting, police and defence equipment

35
2 contracts won

Construction structures and materials; auxiliary products to construction (except electric apparatus)

44
1 contract won

Recent contracts

Latest contracts won by Amentum Clean Energy Limited

The most recently published award notices on Find a Tender and Contracts Finder.

DNWP0068/LOT1A/Calder Breakdowns and Maintenance Resource

Sellafield Ltd · 2026-11-03

£598K

Liquid metals – applicable to lots 3

Framework / DPS

UK FUSION ENERGY LTD · 2026-10-12

Framework value not attributable

DNWP0072/LOT1A/ THB Demolition Phases 1-5

Sellafield Limited · 2026-09-29

£14.8M

DNWP0071/LOT1A/CALDER Ring Fence

Sellafield Ltd · 2026-09-13

£479K

DNWP0040/LOT1A/ HEx-1 Laydown area excavation and pour

Sellafield Ltd · 2026-09-08

£3.4M

DNWP0039/LOT1A/Management Team FY26/27

Sellafield Limited · 2026-09-07

£4.1M

Lot 4: VIVS Mechanical Tests - W2B5 4-point bend: A

Framework / DPS

UK FUSION ENERGY LTD · 2026-08-03

Framework value not attributable

Lot 6 - Fire Safety (Nuclear and Conventional)

Framework / DPS

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED · 2026-07-28

Framework value not attributable

Lot 4 - Criticality Safety and Shielding

Framework / DPS

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED · 2026-07-28

Framework value not attributable

Lot 8 - Quality and Assurance

Framework / DPS

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED · 2026-07-28

Framework value not attributable

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Activity over time

Amentum Clean Energy Limited's public-sector activity by year

Contracts won per year, by published award date.

YearContracts won
20244
202543
202643

Frequently asked

Common questions about Amentum Clean Energy Limited

How many public-sector contracts has Amentum Clean Energy Limited won?

Amentum Clean Energy Limited has won 90 contracts from 33 UK public-sector buyers between 2024-10-17 and 2026-11-08, across 12 procurement categories.

Which public bodies does Amentum Clean Energy Limited supply?

Amentum Clean Energy Limited's largest public-sector buyers by award value are Sellafield Limited, Great British Energy - Nuclear, Sellafield Limited. It has worked with 33 public buyers in total.

What does Amentum Clean Energy Limited supply to the public sector?

Amentum Clean Energy Limited's public-sector work is concentrated in architectural, construction, engineering and inspection services, research and development services and related consultancy services, other community, social and personal services. See the full CPV category breakdown below.

Is Amentum Clean Energy Limited a competitor for contracts my business wants?

If you bid for similar work, Amentum Clean Energy Limited may be an incumbent you're competing against. ENKII scores your business against live tenders, shows the incumbents on each one, and identifies the certifications you need to compete. Free Readiness Score in 3 minutes.

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Related ENKII resources

Sources & methodology

How this profile is compiled

Analysed by ENKII · Updated 2026-11-08

This profile aggregates public-record award data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and resolves supplier identities (this profile is matched at high confidence); we don't edit the underlying facts.

Source portals

  • · Find a Tender (find-tender.service.gov.uk)
  • · Contracts Finder
Full methodology — calculations, refresh cadence & caveats

This profile reproduces public-record award data published by UK government buyers; ENKII aggregates but does not alter the underlying facts. Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.

Spotted an error, or want this profile corrected or removed? Contact hello@enkii.io and we'll review it promptly.

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