This public procurement record has 4 releases in its history.

TenderCancellation

18 Aug 2026 at 12:41

Award

30 Jul 2026 at 18:37

TenderUpdate

10 Jun 2026 at 10:01

Tender

08 May 2026 at 15:31

Summary of the contracting process

The United Kingdom National Nuclear Laboratory sought nuclear technical services across the United Kingdom. The open framework covered ten service areas: health physics and radiological protection advice; human factors; radiological and chemotoxic risk; criticality safety and shielding; nuclear safety cases; nuclear and conventional fire safety; environmental services; quality and assurance; security; and a multi-disciplinary lot. The work included engineering-related scientific and technical services, research consultancy and environmental quality control, alongside nuclear safety services. The framework was intended to support UKNNL’s technical requirements through specialist suppliers, with individual assignments potentially involving one role or several roles. The multi-disciplinary lot was intended for suppliers successful on one or more of the specialist lots, allowing broader combinations of nuclear technical capability across the UK.

The procurement reached award stage, but all ten awards were cancelled and the associated contracts were cancelled on 17 August 2026. The awards had been made on 29 July 2026 to multiple suppliers, with each lot carrying a gross value of £12,000,000. The planned framework period was 1 September 2026 to 31 August 2030, with a possible extension to 31 August 2034. It used an open procedure to establish a framework agreement, with call-offs possible through mini-competition or direct award. Specialist lots were evaluated on technical quality at 100%; the multi-disciplinary lot had no separate award criteria and was available only through mini-competition. UKNNL cancelled the exercise after reviewing its procurement approach and requirements, intending to revise and readvertise it later in 2026.

This procurement demonstrates substantial and varied demand from UKNNL for nuclear technical expertise, spanning safety, engineering, human factors, environmental assurance, fire protection, security and specialist consultancy. The field attracted both large organisations and SMEs, including suppliers with nuclear, engineering, environmental, risk, quality and technical assurance capabilities. A credible future supplier would need demonstrable expertise in one or more of the defined disciplines, the ability to deliver specialist roles for a national nuclear organisation, and sufficient technical capacity to support either individual assignments or multi-disciplinary requirements. The evaluation emphasis shows that strong technical evidence and relevant professional capability are central. Suppliers able to combine complementary disciplines may also be well placed for broader requirements involving several specialist areas.

How relevant is this notice?

Notice Title

Open Framework for Nuclear Technical Services

Notice Description

This notice is to commence the start of the standstill period for the establishment of the Open Framework for Nuclear Technical Services. UKNNL is establishing an Open Framework to support with the supply of Nuclear Technical Services for the United Kingdom National Nuclear Laboratory. The framework will run from September 2026 until September 2030 with the option to extend the framework by a further 4 years, until July 2034. The Framework will reopen once within the first 3-year period, and UKNNL will open it again at least once in the remaining 5-year contract term as required under Regulation 49 of the Procurement Act 2023. UKNNL may opt to open the framework for applications earlier than required, although not likely to be ever more than two times per year. Re-opening may be in relation to the framework agreement in its entirety or in relation to specific lots. Earlier re-opening could be triggered by a range of factors, which may include but are not limited to: Supply & demand changes, Changes to requirements, Changes to framework lotting structure, Changes to rate card structures, Changes to qualitative assessment, Changes to framework management, Addition of new framework lots, Changes to demand, volumes, values and geographical coverage. Suppliers are permitted to amend their technical and commercial response at each re-opening or can choose to allow their previous submission to be considered. The framework has the ability to award contracts through mini competition or direct award. Call-off contracts can be either fixed cost or cost reimbursable. Mini-Competition Where mini-competition is used, this is to be via the e-tender portal and must include all suppliers on the applicable lot. Each mini competition will be restricted to only one Lot. At mini-competition, suppliers can be asked to re-price and may offer discounted rates if they choose to, but may not charge more than the pricing which was submitted at the latest round of framework qualification. Should requirements at call-off not have been priced at point of framework creation, mini-competition should be held allowing all suppliers in the applicable Lot to price, accordingly, providing the additional requirement fits within the overall subject matter of the applicable Lot. Mini-competition criteria must not repeat qualification questions. The evaluation criteria must however comprise of the following, with weighting allowances adhered to: Evaluation Criteria Range Pricing 5-90% Technical 5-90% Social Value 5-90% Mini competitions can be ran using both the Open Procedure and the Competitive Flexible Procedure under the Procurement Act 2023, where the call-off is above threshold. Direct Award There are two direct award mechanisms under this Framework Agreement: (1) Direct award to the highest technically ranked supplier. (2) Direct award using the desktop calculator Direct award to the highest technically ranked suppliers Admittance to the framework is via a 100% technical evaluation. Framework suppliers will be ranked in order of their tendered technical score. Procurement Leads may direct award to the highest ranked supplier. If the highest ranked supplier is unable to provide the requested role UKNNL will award to the next highest ranked supplier who can provide that role. UKNNL is required to contract with the highest ranked supplier which can provide the required role, unless there is a preexisting relationship with any of the other suppliers on the applicable Framework, which would mean a Direct Award to that supplier is in the public interest. This could be because it offers value for money or a saving in terms of resource, or would cause disproportionate disruption to switch supplier. The decision made to award outside of the ranking structure will only be made where it delivers value for money and maximises public benefit. Direct award using the Desktop Calculator This direct award mechanism allows UKNNL to split the evaluation criteria between price and technical, based upon the requirements of each call-off. The desktop calculator will calculate the Most Advantageous Tenderer, taking into account each suppliers Technical Score, and the rate provided for the role being contracted for. Direct award can be used for both a single role and multiple role call-offs. The rates are assessed using the relative pricing equation: (lowest tendered rate / tenders' rate) x percentage weighting applied Where multiple rates on the desktop calculator are used, the rate in the equation will be the average of the rates selected. Once the calculator has ranked the suppliers, the highest ranked supplier should be contacted. Should the supplier be unable to fulfill the roles required, to the required clearance level or in the time-frame required, UKNNL will move down the rankings to the next highest ranked supplier who can fulfill the requirements. The weighting between Price and Technical will be dependent upon the specifics of each call-off but must be within the range set out below. Evaluation Criteria Range Pricing 5-95% Technical 5-95%

Lot Information

Lot 1 - Health Physics and Radiological Protection Advisor

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 2 - Human Factors

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 3 - Radiological & Chemotoxic

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 4 - Criticality Safety and Shielding

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 5 - Nuclear Safety Case

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 6 - Fire Safety (Nuclear and Conventional)

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 7 - Environmental

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 8 - Quality and Assurance

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 9 - Security

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Lot 10 - Multi-Disciplinary Lot

Renewal: Open Framework, open for 4 years initially, extended for a further 4 years.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-0694f1
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/078512-2026
Current Stage
Award
All Stages
Tender, Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Framework
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
SME, VCSE
Awardee Scale
Large, SME

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services

73 - Research and development services and related consultancy services

90 - Sewage, refuse, cleaning and environmental services

98 - Other community, social and personal services


CPV Codes

71350000 - Engineering-related scientific and technical services

73210000 - Research consultancy services

90714500 - Environmental quality control services

98113100 - Nuclear safety services

Notice Value(s)

Tender Value
£10,000,000 £10M-£100M
Lots Value
£10,000,000 £10M-£100M
Awards Value
£12,000,000 £10M-£100M
Contracts Value
Not specified

Notice Dates

Publication Date
18 Aug 20264 weeks ago
Submission Deadline
17 Jun 2026Expired
Future Notice Date
Not specified
Award Date
29 Jul 20261 months ago
Contract Period
1 Sep 2026 - 31 Aug 2030 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active
Contracts Status
Cancelled

Contracting Authority (Buyer)

Main Buyer
NATIONAL NUCLEAR LABORATORY LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
WARRINGTON
Postcode
WA3 6AE
Postcode Area
Warrington
Country
England

Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
Not specified

Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Supplier Information

Number of Suppliers
32
Supplier Names

Amec Nuclear UK Ltd

AtkinsRéalis UK Limited

Cyclife UK

Mott MacDonald

NSG Environmental Ltd

Nuvia Limited

Abbott Risk Consulting Ltd

Assystem Energy & Infrastructure Limited

Frazer-Nash Consultancy Ltd

IHF

NAVAL SOLUTIONS LTD

Stantec UK Ltd

RPS Consulting Services Ltd

AFRY Solutions UK Limited

Orano

Risktec Solutions Limited

TUV SUD Ltd

CERBERUS NUCLEAR LIMITED

International Nuclear Services

Cavendish Nuclear

MMI ENGINEERING LIMITED

COLLABORATIVE ENVIRONMENTAL ADVISERS (CEA) LIMITED

INTERA Geosciences UK

SOCOTEC UK Ltd

NUCLEAR CONSULTING LIMITED

REAL-TIME CONSULTANTS LIMITED

SIRIUS ANALYSIS LIMITED

Vulcain Engineering

ADVENT IM LIMITED

HOLTEC BRITAIN LIMITED

PA CONSULTING SERVICES LIMITED

UBIQUE RISK MANAGEMENT LIMITED

Further Information

Notice Documents

Notice URLs

Open Contracting Data Standard (OCDS)

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