Public sector supplier
Amentum Clean Energy Limited public sector contracts
24 contracts held by Amentum Clean Energy Limited end in the next 18 months. See them come up for renewal, and who else it supplies.
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- 83
- Contracts, last 12 months
- 121
- Contracts since 2021
- 23
- Public sector buyers
- £180k
- Median contract won outright
- 24
- Ending in 18 months
Hatched quarters fall only partly inside the next 18 months. Busiest whole quarter: Q2 2027.
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- 10 contracts end in the next 6 months
- Has won public contracts every year since 2024
- Won work from 9 new buyers in the last 12 months
- Mostly framework places
83 contract awards published in the last 12 months, up from 39 the year before, and 121 since 2021 from 23 public sector buyers.
Amentum Clean Energy Limited at a glance
Its most frequent public sector customer is Nuclear Waste Services Limited, with 21 contracts.
Most of its work falls under architecture and engineering.
60 of its contracts were awarded to it as the only named supplier; the remaining 61 are contracts shared with other suppliers, typically a place on a framework rather than work awarded outright.
Among the contracts it won outright where a value was published, the median is £180k.
Contracts won per quarter
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24 contracts expiring in the next 18 months
Each of these is a contract Amentum Clean Energy Limited currently holds with an end date already published. If you compete with them, this is where the openings are. If you are the buyer, it is your renewal diary.
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Latest contracts won
The most recent awards, leaving out any already listed above.
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Where a contract names more than one supplier it is usually a framework. The published value is the ceiling for the whole framework, shared by everyone on it, not the amount awarded to Amentum Clean Energy Limited.
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Most frequent buyers
- Nuclear Waste Services Limited21 contracts
- Sellafield Limited18 contracts
- United Kingdom National Nuclear Laboratory10 contracts
- Crown Commercial Service10 contracts
- UK Atomic Energy Authority8 contracts
- Nuclear Decommissioning Authority8 contracts
- Nuclear Restoration Services Limited ( Dounreay)6 contracts
- UK Fusion Energy Limited5 contracts
- Government Commercial Agency5 contracts
- United Kingdom Atomic Energy Authority4 contracts
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Most active categories
The CPV codes on this work
The codes buyers used when they awarded this work. Each one shows the whole UK market for it: who buys, who wins, and which contracts end soon.
- 73000000Research and development services and related consultancy services13
- 98391000Decommissioning services9
- 71313000Environmental engineering consultancy services5
- 90700000Environmental services4
- 72000000IT services: consulting, software development, Internet and support4
- 71300000Engineering services3
- 98113100Nuclear safety services2
- 80540000Environmental training services2
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Company record
Company number 01120437ActiveIncorporated 28 June 1973 (53 years 4 months ago)View on Companies House
Matched from the numbers on its own award notices, or its name and registered postcode. Status and incorporation date from the Companies House register file of 1 November 2026; the register itself is the up-to-date record.
Amentum Clean Energy Limited, in short
Which public sector organisations does Amentum Clean Energy Limited supply?
Across 121 contracts recorded since 2021, Amentum Clean Energy Limited has supplied 23 UK public sector buyers. The most frequent are Nuclear Waste Services Limited (21 contracts), Sellafield Limited (18 contracts), United Kingdom National Nuclear Laboratory (10 contracts).
What does Amentum Clean Energy Limited supply to the public sector?
Its contracts fall mainly under architecture and engineering, research and development, community and personal services. Categories are derived from the CPV codes published on each award notice.
How many public sector contracts has Amentum Clean Energy Limited won?
121 since 2021, of which 60 were awarded to it as the only named supplier and 61 are shared with other suppliers, usually a place on a framework. This counts award notices published to Find a Tender and Contracts Finder, so it is a record of published awards rather than of total revenue.
When do Amentum Clean Energy Limited contracts come up for renewal?
24 contracts held by Amentum Clean Energy Limited have an end date within the next 18 months, the earliest on 20 Nov 2026. End dates are published in the original award notices, so they are visible well before any re-tender is advertised.
Where does this information about Amentum Clean Energy Limited come from?
From contract award notices published by the buyers themselves to Find a Tender and Contracts Finder under the Open Government Licence. Coverage starts in 2021 and is comprehensive from 2023, so contracts awarded before then, and any award not published to those portals, will not appear.
Suppliers doing similar work
Other architecture and engineering suppliers to Nuclear Waste Services Limited17
Suppliers with a profile that have won a contract from Nuclear Waste Services Limited under Architecture and engineering since 2021: its most frequent buyer with a page, and its main category. Shown when at least 3 qualify. Most contracts first.
How these figures are worked out
- The last 12 months: award notices published from 8 November 2025 to 7 November 2026, each contract counted once however many suppliers or rows it has. The same window is used everywhere on this page.
- Year on year: Its published contract awards rose in the last year. Contracts by publication date in the 12 months to 7 Nov 2026 and the year before it, oldest first: 39 and 83. A change of more than 15% counts as a rise or fall; each year needs at least 5 contracts.
- 10 contracts end in the next 6 months: Published end dates between 7 November 2026 and 7 May 2027, each contract counted once.
- Has won public contracts every year since 2024: At least one contract in every calendar year from 2024 to 2026, by award date (or publication date where the award date is later). Our records begin in 2021.
- Won work from 9 new buyers in the last 12 months: Buyers with a contract awarded to it and published since 8 November 2025, and none before. Counted by organisation, not by spelling.
- Mostly framework places: 63 of its 123 contracts name other suppliers too, usually a place on a framework. Shown when that is more than half, with at least 5.
- Since 2021: these figures count published award notices from January 2021 onward, the point at which this database begins, and are comprehensive only from 2023. Contracts awarded before then, and any work not published as a public award notice, do not appear. This is a record of published contracts, not of turnover.
- Most recent award: recorded 3 Nov 2026 (4 days ago).
Sources
Contract data on this page is sourced from Find a Tender and Contracts Finder and published under the Open Government Licence v3.0. Contains public sector information licensed under that licence. Figures cover contract award notices published from January 2021 onward, with comprehensive coverage from 2023. Earlier contracts, and any award not published to Find a Tender or Contracts Finder, will not appear. This page describes contracts published by public bodies and is not affiliated with Amentum Clean Energy Limited. Relative dates (such as “in 6 days”) count from 7 November 2026, when this page was built.
How to cite this data
Tender Radar (2026) Amentum Clean Energy Limited public sector contracts [Dataset]. Professor AI. Available at: https://tender-radar.co.uk/suppliers/amentum-clean-energy-limited (Accessed: 7 November 2026).
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