Public sector supplier
The Decommissioning Alliance II public sector contracts
2 contracts held by The Decommissioning Alliance II end in the next 18 months. See them come up for renewal, and who else it supplies.
Is this The Decommissioning Alliance II? See the open tenders like the ones you win
- 14
- Contracts, last 12 months
- 25
- Contracts since 2021
- 5
- Public sector buyers
- £1.3m
- Median contract won outright
- 2
- Ending in 18 months
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- 2 contracts end in the next 6 months
- Has won public contracts every year since 2021
- Won work from 1 new buyer in the last 12 months
- Most of its contracts come from Sellafield Limited
14 contract awards published in the last 12 months and 25 since 2021 from 5 public sector buyers.
The Decommissioning Alliance II at a glance
Its most frequent public sector customer is Sellafield Limited, with 13 contracts.
Most of its work falls under architecture and engineering.
All of its contracts were awarded to it as the only named supplier.
Among the contracts it won outright where a value was published, the median is £1.3m.
Contracts won per quarter
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2 contracts expiring in the next 18 months
Each of these is a contract The Decommissioning Alliance II 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.
| Contract | Buyer | Value | Expires |
|---|---|---|---|
| DNWP0015/LOT2/Project Clipper | Sellafield Ltd | £5.7m | 1 Dec 2026in 3 weeks |
| DNWP013.165/LOT2/PFSP Pond Preparation | Sellafield Ltd | £1.1m | 31 Mar 2027in 5 months |
Latest contracts won
The most recent awards, leaving out any already listed above.
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Most frequent buyers
- Sellafield Limited13 contracts
- CTM Portal for the NDA Shared Services Alliance6 contracts
- The Decommissioning Alliance3 contracts
- CA20 1PG2 contracts
- The Decommissioining Alliance1 contract
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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.
- 98391000Decommissioning services2
- 71300000Engineering services2
- 72611000Technical computer support services1
- 71540000Construction management services1
- 71500000Construction-related services1
- 71350000Engineering-related scientific and technical services1
- 45222000Construction work for engineering works except bridges, tunnels, shafts and subways1
- 45111250Ground investigation work1
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The Decommissioning Alliance II, in short
Which public sector organisations does The Decommissioning Alliance II supply?
Across 25 contracts recorded since 2021, The Decommissioning Alliance II has supplied 5 UK public sector buyers. The most frequent are Sellafield Limited (13 contracts), CTM Portal for the NDA Shared Services Alliance (6 contracts), The Decommissioning Alliance (3 contracts).
What does The Decommissioning Alliance II supply to the public sector?
Its contracts fall mainly under architecture and engineering, construction works, community and personal services. Categories are derived from the CPV codes published on each award notice.
How many public sector contracts has The Decommissioning Alliance II won?
25 since 2021, of which 25 were awarded to it as the only named supplier and 0 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 The Decommissioning Alliance II contracts come up for renewal?
2 contracts held by The Decommissioning Alliance II have an end date within the next 18 months, the earliest on 1 Dec 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 The Decommissioning Alliance II 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 Sellafield Limited25
Suppliers with a profile that have won a contract from Sellafield 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.
- 2 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 2021: At least one contract in every calendar year from 2021 to 2026, by award date (or publication date where the award date is later). Our records begin in 2021.
- Won work from 1 new buyer 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.
- Most of its contracts come from Sellafield Limited: 13 of its 25 contracts. Shown when one buyer has more than half, with at least 5 contracts.
- 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 10 Jun 2026 (5 months 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 The Decommissioning Alliance II. 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) The Decommissioning Alliance II public sector contracts [Dataset]. Professor AI. Available at: https://tender-radar.co.uk/suppliers/the-decommissioning-alliance-ii (Accessed: 7 November 2026).
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