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AWARD Framework Complete

ThermoChimie Phase 4 Framework

Published 5 Mar 2026
5 Mar 2026


Reference: C26852
The ThermoChimie project (Thermo-Chimie (version applicative 4.4.0)) is a thermodynamic database development project, co-funded by Nuclear Waste Services, NIRAS-ONDRAF, and Andra. A robust, traceable, exhaustive, and dependable thermodynamic database is essential for underpinning a future Environmental Safety Case for the surface, near-surface or deep geological disposal of radioactive waste, as well as to perform a range of sensitivity and scoping calculations in support of ongoing research activities. Phase 4 of the ThermoChimie project is planned to start in February 2026. The ThermoChimie Phase 4 Framework has the overall objective of providing both specialist and non-technical support resource to the consortium, in the form of a range of desk-based and experimental data generation/selection activities. Outlined activities are in support of the four key project success factors: (i) database traceability, (ii) consistency, (iii) east of use, and (iv) exhaustivity.

Full CPV breakdown

  • 73000000 — Research and development services and related consultancy services (primary)

Notice details

Buyer type
Local authority
Competition
Open competition (any supplier can bid)
Contract type
Services
Bids received
15
Winning supplier
Large company
Lots
4
Procurement method
Open procedure
Main category
Services
Above threshold
Yes
Legal basis
UKPGA 2023/54
Notice status
Complete
Award status
Pending
Award date
3 Mar 2026
Standstill period ends
16 Mar 2026
Contract can be extended to
31 Mar 2031
Renewal
+1 +1
Framework agreement
Yes
Number of lots
4
Language
EN
Published
05 Mar 2026 16:25
OCID
ocds-h6vhtk-05230e
Notice ID
C26852

Competition

15
Bids received
15
Bids considered at final stage
0
SME bids at final stage
0
VCSE bids at final stage

Organisations on this notice

Supplier Large
C/Venecuela, 103, Planta 2,, Porta 1, 08019, Spain
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GB-COH 15771339
Amentum Clean Energy Limited
Supplier Large
305 Bridgewater Place, Birchwood Park, Warrington, WA3 6XF, United Kingdom
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GB-COH 01120437
Supplier Large
3, Avenue Claude Guillemin, Orléans, 45060, France
a.••••• Upgrade to Pro to see
GB-PPON PMPR-7342-VBHR
Supplier Large
Avenue Herrmann-Debrouxlaan 40, Brussel, 1160, Bulgaria
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GB-PPON PHTR-3116-QXHL
5th Floor Chadwick House Warrington Road Birchwood Science Park, Warrington, WA3 6AE, United Kingdom
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GB-COH 03857752
Galson Sciences Limited
Supplier Large
5 Grosvenor House, Melton Road,, Oakham, LE15 6AX, United Kingdom
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GB-COH 02738897

Lots (4)

Lot 3
· Complete
Lot 1
· Complete
Lot 2
· Complete
Lot 4
· Complete

Key dates

Future Signature Date
20 Mar 2026 · Scheduled
Future Signature Date
20 Mar 2026 · Scheduled
Future Signature Date
20 Mar 2026 · Scheduled
Future Signature Date
20 Mar 2026 · Scheduled

Everything the publisher included in this notice, organised by section. Contact details hidden: upgrade to Pro to see

Organisations

Party 1 › Name Nuclear Waste Services Limited
Party 1 › Address › Street Pelham House, Pelham Drive,
Party 1 › Address › Town / city Calderbridge, Seascale
Party 1 › Address › Postcode CA20 1DB
Party 1 › Address › Country GB
Party 1 › Address › Country United Kingdom
Party 1 › Address › Region (NUTS) UKD11
Party 1 › Role buyer
Party 1 › Link https://www.gov.uk/government/organisations/nuclear-waste-services/abo...
Party 1 › Classification › Description Public authority - sub-central government
Party 2 › Name Amphos 21 Consulting S.L.
Party 2 › Address › Street C/Venecuela, 103, Planta 2,
Party 2 › Address › Town / city Porta 1
Party 2 › Address › Postcode 08019
Party 2 › Address › Country ES
Party 2 › Address › Country Spain
Party 2 › Address › Region (NUTS) ES
Party 2 › Role supplier
Party 2 › Business size large
Party 2 › VCSEs No
Party 2 › Public service mission organisation No
Party 2 › Sheltered workshop No
Party 3 › Name Amentum Clean Energy Limited
Party 3 › Address › Street 305 Bridgewater Place, Birchwood Park
Party 3 › Address › Town / city Warrington
Party 3 › Address › Postcode WA3 6XF
Party 3 › Address › Country GB
Party 3 › Address › Country United Kingdom
Party 3 › Address › Region (NUTS) UKD61
Party 3 › Role supplier
Party 3 › Business size large
Party 3 › VCSEs No
Party 3 › Public service mission organisation No
Party 3 › Sheltered workshop No
Party 4 › Name BRGM
Party 4 › Address › Street 3, Avenue Claude Guillemin
Party 4 › Address › Town / city Orléans
Party 4 › Address › Postcode 45060
Party 4 › Address › Country FR
Party 4 › Address › Country France
Party 4 › Address › Region (NUTS) FR
Party 4 › Role supplier
Party 4 › Business size large
Party 4 › VCSEs No
Party 4 › Public service mission organisation No
Party 4 › Sheltered workshop No
Party 5 › Name SCK CEN
Party 5 › Address › Street Avenue Herrmann-Debrouxlaan 40
Party 5 › Address › Town / city Brussel
Party 5 › Address › Postcode 1160
Party 5 › Address › Country BG
Party 5 › Address › Country Bulgaria
Party 5 › Address › Region (NUTS) BG
Party 5 › Role supplier
Party 5 › Business size large
Party 5 › VCSEs No
Party 5 › Public service mission organisation No
Party 5 › Sheltered workshop No
Party 6 › Name National Nuclear Laboratory
Party 6 › Address › Street 5th Floor Chadwick House Warrington Road Birchwood Science Park
Party 6 › Address › Town / city Warrington
Party 6 › Address › Postcode WA3 6AE
Party 6 › Address › Country GB
Party 6 › Address › Country United Kingdom
Party 6 › Address › Region (NUTS) UKD61
Party 6 › Role supplier
Party 6 › Business size large
Party 6 › VCSEs No
Party 6 › Public service mission organisation No
Party 6 › Sheltered workshop No
Party 7 › Name Galson Sciences Limited
Party 7 › Address › Street 5 Grosvenor House, Melton Road,
Party 7 › Address › Town / city Oakham
Party 7 › Address › Postcode LE15 6AX
Party 7 › Address › Country GB
Party 7 › Address › Country United Kingdom
Party 7 › Address › Region (NUTS) UKF22
Party 7 › Role supplier
Party 7 › Business size large
Party 7 › VCSEs No
Party 7 › Public service mission organisation No
Party 7 › Sheltered workshop No

Buyer

Name Nuclear Waste Services Limited

Tender

Title ThermoChimie Phase 4 Framework
Status complete
Procedure type open
Procedure Open procedure
Techniques › Framework agreement Yes
Lot › Lot 1 › Status complete
Lot › Lot 2 › Status complete
Lot › Lot 3 › Status complete
Lot › Lot 4 › Status complete

Awards

Award 1 › Title ThermoChimie Phase 4 Lot 3
Award 1 › Status pending
Award 1 › Date 3 Mar 2026
Award 1 › Value › Value incl. VAT £625,000
Award 1 › Value › Currency GBP
Award 1 › Category services
Award 1 › Above threshold Yes
Award 1 › Supplier › Supplier 1 › Name Amphos 21 Consulting S.L.
Award 1 › Supplier › Supplier 2 › Name Amentum Clean Energy Limited
Award 1 › Supplier › Supplier 3 › Name BRGM
Award 1 › Supplier › Supplier 4 › Name SCK CEN
Award 1 › Supplier › Supplier 5 › Name National Nuclear Laboratory
Award 1 › Item › CPV › Description Research and development services and related consultancy services
Award 1 › Standstill period › End 16 Mar 2026
Award 1 › Contract period › Start 1 Apr 2026
Award 1 › Contract period › End 31 Mar 2029
Award 1 › Contract period › Can be extended to 31 Mar 2031
Award 1 › Can be renewed Yes
Award 1 › Renewal › Description +1 +1
Award 1 › Document › Document type Award notice
Award 1 › Document › Description Contract award notice on Find a Tender
Award 1 › Document › Link https://www.find-tender.service.gov.uk/Notice/020104-2026
Award 1 › Document › Published 5 Mar 2026
Award 1 › Assessment Summaries Date Sent 4 Mar 2026
Award 1 › Milestone › Type Future signature date
Award 1 › Milestone › Due 20 Mar 2026
Award 1 › Milestone › Status scheduled
Award 2 › Title ThermoChimie Phase 4 Lot 1
Award 2 › Status pending
Award 2 › Date 3 Mar 2026
Award 2 › Value › Value incl. VAT £625,000
Award 2 › Value › Currency GBP
Award 2 › Category services
Award 2 › Above threshold Yes
Award 2 › Supplier › Name Galson Sciences Limited
Award 2 › Item › CPV › Description Research and development services and related consultancy services
Award 2 › Standstill period › End 16 Mar 2026
Award 2 › Contract period › Start 1 Apr 2026
Award 2 › Contract period › End 31 Mar 2029
Award 2 › Contract period › Can be extended to 31 Mar 2031
Award 2 › Can be renewed Yes
Award 2 › Renewal › Description +1+1
Award 2 › Document › Document type Award notice
Award 2 › Document › Description Contract award notice on Find a Tender
Award 2 › Document › Link https://www.find-tender.service.gov.uk/Notice/020104-2026
Award 2 › Document › Published 5 Mar 2026
Award 2 › Assessment Summaries Date Sent 4 Mar 2026
Award 2 › Milestone › Type Future signature date
Award 2 › Milestone › Due 20 Mar 2026
Award 2 › Milestone › Status scheduled
Award 3 › Title ThermoChimie Phase 4 Lot 2
Award 3 › Status pending
Award 3 › Date 3 Mar 2026
Award 3 › Value › Value incl. VAT £625,000
Award 3 › Value › Currency GBP
Award 3 › Category services
Award 3 › Above threshold Yes
Award 3 › Supplier › Name Amphos 21 Consulting S.L.
Award 3 › Item › CPV › Description Research and development services and related consultancy services
Award 3 › Standstill period › End 16 Mar 2026
Award 3 › Contract period › Start 1 Apr 2026
Award 3 › Contract period › End 31 Mar 2029
Award 3 › Contract period › Can be extended to 31 Mar 2031
Award 3 › Can be renewed Yes
Award 3 › Renewal › Description +1 +1
Award 3 › Document › Document type Award notice
Award 3 › Document › Description Contract award notice on Find a Tender
Award 3 › Document › Link https://www.find-tender.service.gov.uk/Notice/020104-2026
Award 3 › Document › Published 5 Mar 2026
Award 3 › Assessment Summaries Date Sent 4 Mar 2026
Award 3 › Milestone › Type Future signature date
Award 3 › Milestone › Due 20 Mar 2026
Award 3 › Milestone › Status scheduled
Award 4 › Title ThermoChimie Phase 4 Lot 4
Award 4 › Status pending
Award 4 › Date 3 Mar 2026
Award 4 › Value › Value incl. VAT £625,000
Award 4 › Value › Currency GBP
Award 4 › Category services
Award 4 › Above threshold Yes
Award 4 › Supplier › Supplier 1 › Name Amphos 21 Consulting S.L.
Award 4 › Supplier › Supplier 2 › Name Amentum Clean Energy Limited
Award 4 › Supplier › Supplier 3 › Name BRGM
Award 4 › Supplier › Supplier 4 › Name National Nuclear Laboratory
Award 4 › Item › CPV › Description Research and development services and related consultancy services
Award 4 › Standstill period › End 16 Mar 2026
Award 4 › Contract period › Start 1 Apr 2026
Award 4 › Contract period › End 31 Mar 2029
Award 4 › Contract period › Can be extended to 31 Mar 2031
Award 4 › Can be renewed Yes
Award 4 › Renewal › Description +1+1
Award 4 › Document › Document type Award notice
Award 4 › Document › Description Contract award notice on Find a Tender
Award 4 › Document › Link https://www.find-tender.service.gov.uk/Notice/020104-2026
Award 4 › Document › Published 5 Mar 2026
Award 4 › Assessment Summaries Date Sent 4 Mar 2026
Award 4 › Milestone › Type Future signature date
Award 4 › Milestone › Due 20 Mar 2026
Award 4 › Milestone › Status scheduled
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