ThermoChimie Phase 4 Framework
Nuclear Waste Services Limited · Local or regional public body
In brief
Nuclear Waste Services Limited awarded research work to Amentum Clean Energy Limited, United Kingdom National Nuclear Laboratory and Amphos 21 Consulting S.L. and 3 others on 8 May 2026.
It is a framework worth up to £2,500,000 excluding VAT: the most the buyer expects to spend across all suppliers, not one contract.
The contract runs for 3 years, up to 5 years with extensions, starting 1 February 2026.
It is split into 4 lots, so a supplier can bid for part of the work.
Built from the notice's own fields. Always check the official notice before you bid.
What the notice says
Lots
| Lot | Trade | Value |
|---|---|---|
| Lot 1 1 February 2026 to 31 January 2029 What this lot coversSecretariat (One Supplier - Direct Award) | Research and development | £500,000 |
| Lot 2 1 February 2026 to 31 January 2029 What this lot coversLot 2 - Database and Website Management / Maintenance (One Supplier - Direct Award) | Research and development | £500,000 |
| Lot 3 1 February 2026 to 31 January 2029 What this lot coversLot 3 - Desk Studies: Data Generation, Selection, Assessment and Verification (Multiple Suppliers, Mini Competition) | Research and development | £500,000 |
| Lot 4 1 February 2026 to 31 January 2029 What this lot coversLot 4 - Experimental Studies: Data Generation, Model Verification (Multiple Suppliers, Mini Competition) | Research and development | £500,000 |
Who won
| Winner | Lot | Value | Dates |
|---|---|---|---|
| Amentum Clean Energy Limited United Kingdom National Nuclear Laboratory Amphos 21 Consulting S.L. BRGM SCK Cen Galson Sciences Limited 3 bids received | Lot 1 | £625,000 | Awarded 3 March 2026 8 May 2026 to 31 March 2030 |
| Amphos 21 Consulting S.L. Galson Sciences Limited 2 bids received | Lot 2 | £625,000 | Awarded 3 March 2026 8 May 2026 to 31 March 2030 |
| Amentum Clean Energy Limited United Kingdom National Nuclear Laboratory Amphos 21 Consulting S.L. BRGM SCK Cen 5 bids received | Lot 3 | £625,000 | Awarded 3 March 2026 8 May 2026 to 31 March 2030 |
| Amentum Clean Energy Limited United Kingdom National Nuclear Laboratory Amphos 21 Consulting S.L. BRGM 5 bids received | Lot 4 | £625,000 | Awarded 3 March 2026 8 May 2026 to 31 March 2030 |
Values as the award notice gives them, excluding VAT where stated.
Timeline
- Planned procurement notice · UK3, notice 073423-2025
- Tender notice · UK4, notice 075362-2025
- Contract award notice · UK6, notice 020104-2026
- Contract details notice · UK7, notice 047310-2026
About the buyer
Procurements
24Awards
11Suppliers it has used most for research
- Amentum Clean Energy Limited2 contracts
- Galson Sciences Limited2 contracts
- Amphos 21 Consulting S.L.1 contract
- BRGM1 contract
- Eden Nuclear1 contract
Similar open tenders
All open research tenders- £260mframework ceiling
- £20mestimated
- £30mestimated
From notice 073423-2025 on Find a Tender, first published 13 November 2025, last updated 21 May 2026. We last checked for changes on 28 September 2026.