Sector · UK public sector
Tenders in Decommissioning services
Live UK public-sector tender data, scoped to Decommissioning services. 35 awards we have tracked, with the suppliers winning and how the spend distributes.
35
awards tracked
£30m
total contract value
£856k
average award size
11.4%
awarded to SMEs
Recent awards
Latest tenders awarded by Decommissioning services
DNWP0058/LOT1A/CALDER WELFARE FACILITIES
Awarded to AMENTUM CLEAN ENERGY LIMITED on 13 Apr 2026 · Sellafield Ltd
£484k
DNWP0010/LOT4/Waste OU - FGMSP Skips Trial
Awarded to A2R on 8 Apr 2026 · Sellafield Ltd
£230k
DNWP0011/LOT1A/ CALDER R1 Discharge Bay Service Disconnections
Awarded to AMENTUM CLEAN ENERGY LIMITED on 7 Apr 2026 · Sellafield Ltd
£126k
DNWP0062/LOT1A/ID - Hazard Reduction
Awarded to AMENTUM CLEAN ENERGY LIMITED on 30 Mar 2026 · Sellafield Ltd
£1.7m
DNWP0069/LOT1B/Calder Hall Decommissioning Delivery
Awarded to AtkinsAltrad on 30 Mar 2026 · Sellafield Ltd
£394k
DNWP0020/LOT4/RCT Characterisation Strategy Implementation Support
Awarded to A2R on 24 Mar 2026 · Sellafield Ltd
£134k
DNWP0054/LOT1B/ WAGR Grand Challenge
Awarded to AtkinsAltrad on 23 Mar 2026 · Sellafield Ltd
£483k
DNWP0050/LOT1B/Permanent electrical and water supplies to Compound 4
Awarded to AtkinsAltrad on 23 Mar 2026 · Sellafield
£751k
DNWP0009/LOT4/RCT Support Knowledge and Data Management
Awarded to A2R on 23 Mar 2026 · Sellafield Ltd
£189k
DNWP0005/LOT1B/ RAHF OP10 U3 Cell Line Main Site Works
Awarded to AtkinsAltrad on 6 Mar 2026 · Sellafield Ltd
£1.3m
DNWP0003/LOT1B/ WAGR Mortuary Tubes Group 1A Mortuary Tubes remaining phases
Awarded to AtkinsAltrad on 4 Mar 2026 · Sellafield Ltd
£938k
DNWP0007/LOT1B/ PILE 1 Early Fuel Removals - Lead & Learn P2
Awarded to AtkinsAltrad on 11 Feb 2026 · Sellafield Ltd
£2.4m
Sector pulse
Who procures in Decommissioning services, and where the value sits
Decommissioning services accounts for 35 tracked awards worth £30m in the period we monitor. The average award here is £856k. Decommissioning services is procured mainly by Nuclear Restoration Services Ltd, Sellafield and Sellafield Limited. The biggest spender is Nuclear Restoration Services Ltd, with 2 awards totalling £275k. Geographically the work is concentrated heavily in North West. Only 11.4% of awards go to SMBs, so this category is dominated by larger suppliers. Volume is falling sharply versus the prior month.
Who is buying in Decommissioning services
Biggest single award
£5.4m
DNWP0012.172/LOT 2/Management Core Team
Won by The Decommissioning Alliance II,The Decommissioning Alliance II on 19 Dec 2025
Busiest month
Dec 25
8 awards published, totalling £17.2m.
Last 30 days vs the prior 30: sharply down.
Where the awards land
- North West69%
- North East,North West,Yorkshire and The Humber,East Midlands,West Midlands,East of England,London,South East,South West,Scotland,Wales,Northern Ireland11%
- Any region11%
- Scotland6%
- South East3%
Top suppliers
Who is winning the work
AtkinsAltrad
10 awards · £11.6m total
AMENTUM CLEAN ENERGY LIMITED
5 awards · £5.9m total
A2R
4 awards · £3.3m total
ADAPT
3 awards · £1.1m total
Tecan UK Limited
2 awards · £171k total
The Decommissioning Alliance II,The Decommissioning Alliance II
1 award · £5.4m total
The Decommissioning Alliance II
1 award · £1.1m total
Cumbria Nuclear Solutions Ltd
1 award · £609k total
Related buyers
The buyers driving demand in Decommissioning services.
How Bidwell helps
Win more of the Decommissioning services pipeline
SMB share in Decommissioning services sits at 11.4%, below the wider public-sector average. The category gets won by the systems integrators with full bid teams, and that is exactly the gap Bidwell closes. We catch every UK tender that maps to Decommissioning services, score it against your knowledge base, and draft a tailored response in around 30 minutes so a smaller team can compete on volume.
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