01 Procurement
Tender overview
- Buyer
- UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED
- Status
- Complete
- Procurement method
- Open procedure
- Category
- services
- CPV classification
- Not supplied
- Tender period
- Not supplied — 17 June 2026
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%
This page represents one OCDS contracting process. Notices can be revised over time. Values may be estimates, award values or contract values and should be read with their displayed stage and date.
02 Awards and contracts
Published award records
Lot 1 - Health Physics and Radiological Protection Advisor
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 6
- Signed contract
- Not supplied
Lot 10 - Multi-Disciplinary Lot
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 32
- Signed contract
- Not supplied
Lot 2 - Human Factors
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 10
- Signed contract
- Not supplied
Lot 3 - Radiological & Chemotoxic
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 10
- Signed contract
- Not supplied
Lot 4 - Criticality Safety and Shielding
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 6
- Signed contract
- Not supplied
Lot 5 - Nuclear Safety Case
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 7
- Signed contract
- Not supplied
Lot 6 - Fire Safety (Nuclear and Conventional)
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 8
- Signed contract
- Not supplied
Lot 7 - Environmental
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 13
- Signed contract
- Not supplied
Lot 8 - Quality and Assurance
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 10
- Signed contract
- Not supplied
Lot 9 - Security
- Awarded
- 28 July 2026
- Award value
- Not supplied
- Suppliers
- 11
- Signed contract
- Not supplied
03 Organisations
Buyers, suppliers and other parties
United Kingdom National Nuclear Laboratory
Chadwick House, Birchwood Park, Warrington, UKD61, WA3 6AE, United Kingdom
GB-PPON PVXT-8784-YGNVUNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED
Chadwick House Warrington Road, Warrington, UKD61, WA3 6AE, United Kingdom
Companies House 03857752 →ABBOTT RISK CONSULTING LIMITED
11 Albyn Place, EDINBURGH, UKM75, EH2 4NG, United Kingdom
Companies House SC234532 →ADVENT IM LIMITED
Cradley Enterprise Centre, Halesowen, UKG36, B63 2QB, United Kingdom
Companies House 04626377 →AFRY SOLUTIONS UK LIMITED
920 Birchwood Boulevard, Warrington, UKD61, WA3 7QS, United Kingdom
Companies House 01192469 →AMENTUM CLEAN ENERGY LIMITED
305 Bridgewater Place, Warrington, UKD61, WA3 6XF, United Kingdom
Companies House 01120437 →ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED
First Floor, Parklands 4B, Middlebrook, Bolton, UKD36, BL6 4SD, United Kingdom
Companies House 03148098 →AtkinsRéalis
Woodcote Grove, Ashley Road, Epsom, UKJ26, KT18 5BW, United Kingdom
Companies House 00688424 →CAVENDISH NUCLEAR LIMITED
33 Wigmore Street, London, UKI32, W1U 1QX, United Kingdom
Companies House 03975999 →CERBERUS NUCLEAR LIMITED
Lovell House The Quadrant, Warrington, UKD61, WA3 6FW, United Kingdom
Companies House 10492025 →COALESCE MANAGEMENT CONSULTING LIMITED
One Didsbury Point The Avenue, Manchester, UKD33, M20 2EY, United Kingdom
Companies House 12204616 →COLLABORATIVE ENVIRONMENTAL ADVISERS (CEA) LIMITED
Mountbatten House, 1, Grosvenor Square, Southampton, UKJ32, SO15 2JU, United Kingdom
Companies House 11114584 →CPC PROJECT SERVICES LIMITED
100 Wood Street, London, UKI31, EC2V 7AN, United Kingdom
Companies House 15334213 →CYCLIFE UK LTD
1 Joseph Noble Road Joseph Noble Road, Lillyhall Industrial Estate, Workington, UKD11, CA14 4JX, United Kingdom
Companies House 04772229 →FRAZER-NASH CONSULTANCY LIMITED
Hill Park Court, Leatherhead, UKJ26, KT22 7NL, United Kingdom
Companies House 02562870 →GATTACA PROJECTS LIMITED
1450 Parkway Solent Business Park, Fareham, UKJ36, PO15 7AF, United Kingdom
Companies House 03312947 →HARDIUM LTD
24 The Grange, Whitley Bay, UKC22, NE25 9NF, United Kingdom
Companies House 16854000 →HOLTEC BRITAIN LIMITED
168 Shoreditch High St, London, UKI41, E1 6RA, United Kingdom
Companies House 07396592 →IHF LIMITED
24a Ainslie Place, Edinburgh, UKM75, EH3 6AJ, United Kingdom
Companies House SC422632 →INTERA GEOSCIENCES UK LIMITED
Eagle House, Northampton, UKF24, NN1 5AJ, United Kingdom
Companies House 15462033 →International Nuclear Services Limited
Hinton House, Risley, Warrington, UKD61, WA3 6GR, United Kingdom
Companies House 01144352 →International Nuclear Services Limited
Hinton House, Risley, Warrington, UKD61, WA3 6GR, United Kingdom
GB-PPON PMQD-6637-QWGTMOTT MACDONALD LIMITED
10 Fleet Place, London, UKI31, EC4M 7RB, United Kingdom
Companies House 01243967 →NAVAL SOLUTIONS LTD
One, Wells, UKK23, BA5 2LA, United Kingdom
Companies House 12059547 →NCC Group Security Services Limited
XYZ Building, 2 Hardman Boulevard, Spinningfields, Manchester, UKD33, M3 3AQ, United Kingdom
Companies House 04474600 →NSG ENVIRONMENTAL LIMITED
Ackhurst Road, Chorley, UKD47, PR7 1NH, United Kingdom
Companies House 02769182 →NUCLEAR CONSULTING LIMITED
2 The Old Estate Yard High Street, Wantage, UKJ14, OX12 8JY, United Kingdom
Companies House 07185659 →NUVIA LIMITED
304 Bridgewater Place, Birchwood Park, Birchwood, Warrington, UKD61, WA3 6XG, United Kingdom
Companies House 02063786 →OCCAM GROUP LTD
One New Street, Wells, UKK23, BA5 2LA, United Kingdom
GB-PPON PYWD-8647-GJJVORANO LIMITED
Suite 1, 2nd Floor, East Wing The Lambourn, Abingdon, UKJ14, OX14 1UJ, United Kingdom
Companies House 01303570 →OXFORD SIGMA LIMITED
13 The Courtyard Timothy's Bridge Road, Stratford Upon Avon, UKG13, CV37 9NP, United Kingdom
Companies House 11874768 →PA CONSULTING SERVICES LIMITED
10 Bressenden Place, London, UKI32, SW1E 5DN, United Kingdom
Companies House 00414220 →REAL-TIME CONSULTANTS LIMITED
Teme House Whittington Road, Worcester, UKG12, WR5 2RY, United Kingdom
Companies House 02587032 →RISKTEC SOLUTIONS LIMITED
Wilderspool Park, Warrington, UKD61, WA4 6HL, United Kingdom
Companies House 04118059 →SHIRLEY PARSONS LIMITED
B2 Building (4th Floor), Aylesbury, UKJ13, HP21 7QW, United Kingdom
Companies House 05600243 →SIMPACT ENGINEERING LIMITED
Highdown House, Leamington Spa, UKG13, CV31 1XT, United Kingdom
Companies House 03914370 →SIRIUS ANALYSIS LIMITED
Second Floor South Suite (Room 2.4) National Maritime Systems Centre, Portsdown Technology Park, Southwick Road, UKJ31, PO6 3RU, United Kingdom
Companies House 12326135 →SOCOTEC UK LIMITED
SOCOTEC House, Bretby Business Park, Ashby Road, Burton upon Trent, UKF13, DE15 0YZ, United Kingdom
Companies House 02880501 →STANTEC UK LIMITED
Stantec House, Kelburn Court, Birchwood, Warrington, UKD61, WA3 6UT, United Kingdom
Companies House 01188070 →TETRA TECH CONSULTING LIMITED
101 Park Drive, Abingdon, UKJ14, OX14 4RY, United Kingdom
Companies House 01470149 →THORNTON TOMASETTI WARRINGTON LIMITED
The Brew House Wilderspool Park, Warrington, UKD61, WA4 6HL, United Kingdom
Companies House 04075775 →TUV SUD LIMITED
Napier Building, Scottish, East Kilbride, UKM95, G75 0QF, United Kingdom
Companies House SC215164 →UBIQUE RISK MANAGEMENT LIMITED
10 Stadium Road, Wirral, UKD74, CH62 3RP, United Kingdom
Companies House 07589762 →VULCAIN ENGINEERING LTD
Suite 3 Meadow Mill Eastington Trading Estate, Stonehouse, UKK13, GL10 3RZ, United Kingdom
Companies House 05722901 →Companies House links appear only for explicit GB-COH identifiers. BritDB does not create company links from a similar name or address.
04 Provenance
Source for this process
Contains public sector information licensed under the Open Government Licence v3.0. Official external links are available only on the source transition page.