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Published 10 Nov 2026, 12:27 GMT

Official UK procurement notice

UKNNL - Fabrication, Machining, Associated Supplies and Services Open Framework

Authority: United Kingdom National Nuclear Laboratory (Public body)

Open framework scheme5 lotsWorksOpen procedureAbove thresholdSME suitable
Framework ceiling (notional)£15,000,000total for 5 lots · framework ceiling, not attributable revenue
Submission deadline 8 Dec 202613:00 GMT · 28 days left
Clarification cut-off 2 Dec 202613:00 GMT · questions to the authority
Framework period 4 yrsends 7 Mar 2031 · up to 7 Mar 2035 with extensions · starts 8 Mar 2027
Notice summaryFrom the published notice

The framework has the ability to award contracts through restricted quick quotes, open quick quotes, mini competition and direct award. Call-off contracts can be either fixed cost or cost reimbursable. Where mini-competition is used, this is to be via the e-tender portal and must include all suppliers on the applicable lot. Mini-competition criteria must not repeat qualification questions. Published lot titles: Non-Nuclear Rig Fabrication and Machining; Nuclear Rig Fabrication; Infrastructure Fabrication and Machining & Engineering Systems; Associated Supplies, Products, Services & Technical Support; Complex and/or High Value Rig Fabrication & Machining.

What is being bought5 lots · detail below

Published requirement description

The framework has the ability to award contracts through restricted quick quotes, open quick quotes, mini competition and 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. 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.

The Framework Agreement permits contracts to be awarded by direct award. UKNNL may award a contract directly to a Supplier where this is justified by the requirement for continuity of service, demonstrable value for money, and compliance with applicable procurement legislation.

A direct award can be made to a supplier for the continuation of existing services. This approach is considered appropriate where the supplier has established knowledge, experience, systems integration, and operational capability that are critical to the effective delivery of the services and where a change of supplier would result in disproportionate cost, disruption, delay, or operational risk.

Further justifications for Direct Award can be found below:

  • It secures the uninterrupted continuation of critical services.
  • The requirement consists of substantially similar or repeat services already being delivered by the current supplier.
  • A change of supplier would require significant transition activity, resulting in additional cost, resource burden, loss of operational knowledge, and increased delivery risk.
  • The supplier is already integrated within existing governance, processes, systems, and delivery arrangements.
  • The proposed award represents value for money when considering both contract costs and the costs and risks associated with supplier transition.
  • The award supports efficient service delivery and maximises public benefit.

UKNNL has assessed that awarding the contract to the current supplier represents the most advantageous commercial outcome and is consistent with the Framework terms and/ or the principles set out within Schedule 5 of the Procurement Act 2023 relating to circumstances where supplier continuity, technical knowledge, interoperability, or the procurement of similar services provide a lawful justification for direct award.

The Procurement Lead shall ensure that the rationale for direct award is fully documented and demonstrates that:

  • The direct award is objectively justified.
  • The decision delivers value for money and public benefit.
  • The risks and costs associated with changing supplier have been considered.
  • The award complies with the Framework Agreement, the Procurement Act 2023, and all applicable governance requirements.
  • Appropriate transparency and approval requirements have been satisfied prior to contract award.

If there is a pre-existing relationship with any or other suppliers on the Framework which is in the public interest as it offers value for money or a saving in terms of resource and any other compelling commercially and/or value led reason that can be determined to make a Direct Award.

Additional Direct Award Options - Lot 5 Only

a) Direct award to the highest ranked supplier

Admission to the Framework is based on a 50% technical evaluation and 50% commercial evaluation, with Framework Suppliers ranked in descending order according to their combined score.

For a direct award under the ranking option, the Procurement Lead will approach the highest ranked Framework Supplier on Lot 5 and request a full quotation and indicative delivery programme for the requirement. Social value may be required for contracts delivered under Lot 5, where this is required, suppliers will be required to provide social value commitments within their proposal.

The Procurement Lead may not negotiate the scope of the requirement in a manner that would materially alter the nature of the direct award. Where the highest ranked Framework Supplier is unable to meet the requirement, is unable to deliver within the required timescale, or does not provide a commercially acceptable quotation, the Procurement Lead may progress to the next highest ranked Framework Supplier on Lot 5.

UKNNL is expected to award to the highest ranked Framework Supplier capable of meeting the requirement. However, where there is a demonstrable value-for-money benefit, a pre-existing project relationship, programme continuity requirement, or another compelling commercial justification, the Authority may award to an alternative Framework Supplier, as detailed in 3.4. In such circumstances, the Procurement Lead must ensure that the rationale for the award is appropriately documented and demonstrates the achievement of value for money and public benefit.

b) Direct award using the desktop calculator

This direct award mechanism enables the Procurement Lead to undertake a weighted evaluation of technical quality and pricing.

The desktop calculator will determine the Most Advantageous Tender by applying a new tender specific weighting to each of the Framework Suppliers’ technical and commercial scores achieved during framework establishment. The supplier with the highest combined technical and commercial score post weighting will be invited to provide a proposal. The desktop calculator must be used to calculate the final ranking. The new revised costing will not be a factor of the evaluation used to determine the highest ranked supplier. The Procurement Lead may determine the relative weighting of Technical and Price, provided that the combined weighting totals 100% and remains within the permitted ranges set out below. Social value may be required for contracts delivered under Lot 5, where this is required, suppliers will be required to provide social value commitments within their proposal.

Following completion of the desktop evaluation, the requirement should be awarded to the highest ranked Framework Supplier. If that supplier is unable to meet the requirement, deliver within the required timescales, or satisfy any mandatory project requirements, the Procurement Lead may progress to the next highest ranked supplier until a suitable supplier is identified.

The business area shall advise on the appropriate balance between Technical and Price having regard to the nature, complexity, and risk associated with the requirement. The values applied must fall within the ranges shown below.

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%.

CPV: Air filters · Analysis services · Fabrication work · Filtering apparatus · Mechanical and electrical engineering services · Mechanical engineering services · Metal-working machine tools · Metalworking · Miscellaneous special-purpose machinery · Pumps and compressors · Tanks, reservoirs, containers and pressure vessels · Technical inspection and testing services · +2 more

How this framework works

From the published notice
Type
Closed framework · open framework scheme (admission reopens)
Call-offs
call-offs may be awarded directly or by further competition
Framework period
4 yrs · up to 8 yrs from 8 Mar 2027
Scheme runs until
7 Mar 2035
Published description of the framework

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. 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 three direct award mechanisms under this Framework Agreement:

  • Direct award to the highest technically ranked supplier.
  • Direct award using the desktop calculator
  • Direct Award for repeat services. Admittance to the framework for Lots 1, 2, 3 and 4 is via a 100% technical evaluation. Admittance to the framework for Lot 5 is via a 50% technical and 50% commercial evaluation Framework suppliers will be ranked in order of their tendered combined technical and commercial score for Lot 5 only. Procurement Leads may direct award to the highest ranked supplier. If the highest ranked supplier is unable to provide the requested requirements UKNNL will award to the next highest ranked supplier who can provide the requirements. UKNNL is required to contract with the highest ranked supplier which can provide the requirements, 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 costs provided for the requirement. The costs are assessed using a relative pricing methodology, with the Tenderer submitting the lowest evaluated Total Price receiving the maximum available score of 40%. Scores for all other Tenderers will be awarded in accordance with the percentage difference between their evaluated Total Price and the lowest evaluated Total Price, as set out in the Commercial Price Evaluation Matrix contained within the procurement documents. Once the calculator has ranked the suppliers, the highest ranked supplier should be contacted. Should the supplier be unable to fulfil the requirements, to the required clearance level or in the timeframe required, UKNNL will move down the rankings to the next highest ranked supplier who can fulfil 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%

Lots and requirements (5)Procurement structure

5 lots · all with a published value · evaluation weights differ by lot

Every one of these 5 lots carries the same published figure, £15,000,000: it is the framework's maximum for the whole notice, not each lot's own budget, and no share per lot is published. The cards below say ceiling above rather than repeat it.

Lot #1Non-Nuclear Rig Fabrication and MachiningRenewal 4 yrsSMEceiling above

This Lot is for Non-Nuclear Rig Fabrication and Machining. See Invitation to Tender for further information on Lot 1 and Procurement Specification Appendix A.

Contract period: 8 Mar 2027 – 7 Mar 2031 (4 yrs) · up to 7 Mar 2035 with extensions
Delivery: UKEligibility: SME eligible
Extensions: Open Framework, open for 4 years initially, extended for a further 4 years.

Who is likely to bid for this lot ↓

Lot #2Nuclear Rig FabricationRenewal 4 yrsSMEceiling above

This Lot is for Nuclear Rig Fabrication .See Invitation to Tender for further information on Lot 2 and Procurement Specification Appendix A.

Contract period: 8 Mar 2027 – 7 Mar 2031 (4 yrs) · up to 7 Mar 2035 with extensions
Delivery: UKEligibility: SME eligible
Extensions: Open Framework, open for 4 years initially, extended for a further 4 years.

Who is likely to bid for this lot ↓

Lot #3Infrastructure Fabrication and Machining & Engineering SystemsRenewal 4 yrsSMEceiling above

This Lot is for Infrastructure Fabrication and Machining & Engineering Systems. See Invitation to Tender for further information on Lot 3 and Procurement Specification Appendix A.

Contract period: 8 Mar 2027 – 7 Mar 2031 (4 yrs) · up to 7 Mar 2035 with extensions
Delivery: UKEligibility: SME eligible
Extensions: Open Framework, open for 4 years initially, extended for a further 4 years.

Who is likely to bid for this lot ↓

Lot #4Associated Supplies, Products, Services & Technical SupportRenewal 4 yrsSMEceiling above

This Lot is for Associated Supplies, Products, Services & Technical Support. See Invitation to Tender for further information on Lot 4 and Procurement Specification Appendix A.

Contract period: 8 Mar 2027 – 7 Mar 2031 (4 yrs) · up to 7 Mar 2035 with extensions
Delivery: UKEligibility: SME eligible
Extensions: Open Framework, open for 4 years initially, extended for a further 4 years.

Who is likely to bid for this lot ↓

Lot #5Complex and/or High Value Rig Fabrication & MachiningRenewal 4 yrsSMEceiling above

This Lot is for Complex and/or High Value Rig Fabrication & Machining. See Invitation to Tender for further information on Lot 5 and Procurement Specification Appendix A.

Contract period: 8 Mar 2027 – 7 Mar 2031 (4 yrs) · up to 7 Mar 2035 with extensions
Delivery: UKEligibility: SME eligible
Extensions: Open Framework, open for 4 years initially, extended for a further 4 years.

Who is likely to bid for this lot ↓

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
What this means for your bid
  • Price carries 50 points on every lot: a 10% discount moves about 5 points.
  • “UKNNL - Fabrication, Machining, Associated Supplies and Services Open…” is a framework: the contest is a place on its panel, not a single contract: call-offs may be direct or by further competition.

Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.

Competition analysis · published record, not a forecast of who will bid

How United Kingdom National Nuclear Laboratory buys Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery (CPV 4251), and who usually turns up

United Kingdom National Nuclear Laboratory’s published record next to the market for the same work. Compared with other frameworks and DPS only. Whole-market view: Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery (CPV 4251) →

1

How the contest usually goes

Winner shares use published awards; bid and price charts use contested lots.

How often do SMEs win?
i

How often small and medium firms win.

Share of awards where the winner’s size is known.

The counts under this question show how many awards have a known supplier size.

Last 36 months.

Buyer: 1 of 2 known-size awards · market: division 42 · UK-wide, n=93
1 of 246%

Small firms have won here. Neither number says whether you qualify; it describes who has been winning.

How often do local suppliers win?
i

How often local firms win similar work.

Winners with a registered address in the delivery region, out of awards with a known address.

Local means the winner is registered in the region where that award was delivered.

A local branch does not count if the registered address is elsewhere.

Last 36 months.

Buyer: 5 of 5 known-location awards · market: division 42 · UK-wide, n=74
100%50%

Most of this buyer’s recorded winners were registered in the region where that award was delivered.

How long to a decision?
i

How long buyers here take to decide after bids close.

Middle value in days from the bid deadline to the award date, on competitions that published both.

Only decided tenders count, so slow ones still waiting are not in.

Last 36 months.

Buyer: no decision dates published · market: division 42 · UK-wide, n=23
—61 days

Half of these awards have an award date within 61 days of the bid deadline.

How often single-bid or direct?
i

How often work is awarded with no recorded rival.

Direct awards and tenders where every published lot count shows one bid.

The market share is a minimum: some awards have no bid count.

Thin markets produce this too; it is not proof of a tailored specification.

Last 36 months.

Buyer: exactly 2 of 4 procurements with awards had no recorded rival · market: division 42 · UK-wide, n=48
2 of 444%

Direct awards or one recorded bid are common here. Check the route before spending time on a bid.

How many bids did past lots attract?

i

How many bids past lots received.

Each colour is a bid-count range. Only competed lots with a published count are included.

Past bids do not predict this tender.

Last 36 months.

This buyer13 lots with bid counts · all categories
8% had one bid
The market165 lots with bid counts · division 42 · UK-wide
8% had one bid
Buyer / market · select a colour for counts
1 bid8% / 8%
Buyer: 1 of 13 lots with published bid counts. Market: 13 of 165 lots with published bid counts.
2–38% / 23%
Buyer: 1 of 13 lots with published bid counts. Market: 38 of 165 lots with published bid counts.
4–68% / 20%
Buyer: 1 of 13 lots with published bid counts. Market: 33 of 165 lots with published bid counts.
7+77% / 49%
Buyer: 10 of 13 lots with published bid counts. Market: 81 of 165 lots with published bid counts.

How did awards compare with estimates?

i

Where winning prices landed against estimates.

Awards below, close to or above the estimate, per lot. The buyer side adds below-threshold contracts with a pre-award estimate; an award inside a published range counts as close.

On a framework or DPS, prices are agreed when work is called off.

Past prices are a guide, not a bid price.

Last 36 months.

Not comparable on a framework or DPS: the price is set later, on each call-off.

2

Assess each lot
i

What past awards tell you about each lot.

See the forecast, this buyer’s earlier suppliers and firms with relevant wins.

No supplier is confirmed as a bidder.

Open a lot for its forecast, this buyer’s previous supplier and possible competitors, from published award history, not a bid list

Lot #1Non-Nuclear Rig Fabrication and MachiningCPV 425148 monthsSME suitablePublished estimate£15m
Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative.

A forecast, not a list of bidders.

6expected bids12% chance of a single bid
similar past contests in this category: 5
Forecast chances for this lot
1 bid12%
Chance this lot gets 1 bid: 12%. This is a forecast.
2–321%
Chance this lot gets 2–3: 21%. This is a forecast.
4–639%
Chance this lot gets 4–6: 39%. This is a forecast.
7+29%
Chance this lot gets 7+: 29%. This is a forecast.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Priced at call-off
On a framework or DPS the price is agreed on each call-off, so there is no award price to forecast here: the published figure is a ceiling.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

SupplierWon in this categoryLive contractsAward vs estimate
25 panel places
£1.6m36 awards in 36m · last 3 months ago4 live · £1.1m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

at estimate n=4
£41k1 award in 36m · last 1 month ago1 live · £41k
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
4 panel places
£29k6 awards in 36m · last 2 months ago1 live · £1.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

42% below n=1
£185k4 awards in 36m · last 9 months agoNone on fileno comparable pairs
1 panel places
1 award in 36m · last 26 months ago1 live
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
Lot #2Nuclear Rig FabricationCPV 425148 monthsSME suitablePublished estimate£15m
Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative.

A forecast, not a list of bidders.

6expected bids11% chance of a single bid
similar past contests in this category: 5
Forecast chances for this lot
1 bid11%
Chance this lot gets 1 bid: 11%. This is a forecast.
2–322%
Chance this lot gets 2–3: 22%. This is a forecast.
4–642%
Chance this lot gets 4–6: 42%. This is a forecast.
7+24%
Chance this lot gets 7+: 24%. This is a forecast.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Priced at call-off
On a framework or DPS the price is agreed on each call-off, so there is no award price to forecast here: the published figure is a ceiling.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

SupplierWon in this categoryLive contractsAward vs estimate
4 panel places
£5.1m5 awards in 36m · last 2 months ago2 live · £5.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

8% below n=2
25 panel places
£1.6m36 awards in 36m · last 3 months ago4 live · £1.1m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

at estimate n=4
4 panel places
£29k6 awards in 36m · last 2 months ago1 live · £1.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

42% below n=1
8 panel places
8 awards in 36m · last 1 month ago5 live · £74m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
£185k4 awards in 36m · last 9 months agoNone on fileno comparable pairs
Lot #3Infrastructure Fabrication and Machining & Engineering SystemsCPV 425148 monthsSME suitablePublished estimate£15m
Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative.

A forecast, not a list of bidders.

6expected bids13% chance of a single bid
similar past contests in this category: 5
Forecast chances for this lot
1 bid13%
Chance this lot gets 1 bid: 13%. This is a forecast.
2–322%
Chance this lot gets 2–3: 22%. This is a forecast.
4–641%
Chance this lot gets 4–6: 41%. This is a forecast.
7+24%
Chance this lot gets 7+: 24%. This is a forecast.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Priced at call-off
On a framework or DPS the price is agreed on each call-off, so there is no award price to forecast here: the published figure is a ceiling.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

SupplierWon in this categoryLive contractsAward vs estimate
4 panel places
£5.1m5 awards in 36m · last 2 months ago2 live · £5.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

8% below n=2
5 panel places
£2.0m6 awards in 36m · last 2 months ago1 live · £54k
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

at estimate n=2
6 panel places
£551k14 awards in 36m · last 2 months ago3 live · £250k
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
4 panel places
£29k6 awards in 36m · last 2 months ago1 live · £1.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

42% below n=1
6 panel places
£454k8 awards in 36m · last 6 months ago1 live · £140k
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
Lot #4Associated Supplies, Products, Services & Technical SupportCPV 425148 monthsSME suitablePublished estimate£15m
Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative.

A forecast, not a list of bidders.

6expected bids11% chance of a single bid
similar past contests in this category: 5
Forecast chances for this lot
1 bid11%
Chance this lot gets 1 bid: 11%. This is a forecast.
2–322%
Chance this lot gets 2–3: 22%. This is a forecast.
4–642%
Chance this lot gets 4–6: 42%. This is a forecast.
7+24%
Chance this lot gets 7+: 24%. This is a forecast.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Priced at call-off
On a framework or DPS the price is agreed on each call-off, so there is no award price to forecast here: the published figure is a ceiling.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

SupplierWon in this categoryLive contractsAward vs estimate
8 panel places
£29m6 awards in 36m · last 2 months ago1 live · £1.1m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

3% above n=3
4 panel places
£29k6 awards in 36m · last 2 months ago1 live · £1.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

42% below n=1
8 panel places
8 awards in 36m · last 1 month ago5 live · £74m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
11 panel places
14 awards in 36m · last 3 months ago1 live · £105m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
1 panel places
1 award in 36m · last 26 months ago1 live
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
Lot #5Complex and/or High Value Rig Fabrication & MachiningCPV 425148 monthsSME suitablePublished estimate£15m
Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative.

A forecast, not a list of bidders.

5expected bids13% chance of a single bid
similar past contests in this category: 5
Forecast chances for this lot
1 bid13%
Chance this lot gets 1 bid: 13%. This is a forecast.
2–332%
Chance this lot gets 2–3: 32%. This is a forecast.
4–640%
Chance this lot gets 4–6: 40%. This is a forecast.
7+16%
Chance this lot gets 7+: 16%. This is a forecast.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Priced at call-off
On a framework or DPS the price is agreed on each call-off, so there is no award price to forecast here: the published figure is a ceiling.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

SupplierWon in this categoryLive contractsAward vs estimate
5 panel places
£2.0m6 awards in 36m · last 2 months ago1 live · £54k
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

at estimate n=2
4 panel places
£29k6 awards in 36m · last 2 months ago1 live · £1.2m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

42% below n=1
8 panel places
8 awards in 36m · last 1 month ago5 live · £74m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
£185k4 awards in 36m · last 9 months agoNone on fileno comparable pairs
11 panel places
14 awards in 36m · last 3 months ago1 live · £105m
i

Public contracts this supplier still holds.

Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book.

Unexpired says nothing about spare capacity.

no comparable pairs
About this data
  • Source. Official UK public procurement notices (Find a Tender and Contracts Finder), reused under the Open Government Licence v3.0. New notices arrive through the day; the figures are rebuilt nightly. Contracts Finder appears in live search, the Retender Radar, contract pages, organisation counts, the earlier contracts and past suppliers on a tender's competition panel, the buyer's decision figure and its award against estimate; the other analytical figures are built from Find a Tender notices.
  • Two views, kept apart. The authority’s own track record and the wider market for the same kind of work sit side by side and are never mixed. Where the local picture is too thin, a figure widens to a broader market and says which one it used.
  • Forecasts are labelled. The price forecast and its range, possible competitors and the earlier-work matches are our estimates from past awards: not published facts, not win chances and not price advice. Official notices do not say who is bidding.
  • Every figure shows what it rests on. Not every notice publishes a bid count, a value or a delivery region, so each figure carries the number of records behind it, and one built on few records is marked as such. The on a figure explains it; the counting rules are in the methodology. Spotted something wrong? Tell us.

Procedure terms & legal framework

From the official record
Procedure method
Open procedure
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Works
Notice status
Open for tender
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Open framework scheme
Who may use this agreement
Not stated in the notice; call-off rights may be limited to the establishing authority
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
10 Nov 2026, 12:27 GMT
Last source update
10 Nov 2026, 12:27 GMT
Award evaluation window
Submission end – 25 Jan 2027
Authority reference
NNLC703F
FTS notice number
2026/S 000-106629
Latest notice
Tender notice (UK4)
Classification (CPV)
Air filtersAnalysis servicesFabrication workFiltering apparatusMechanical and electrical engineering servicesMechanical engineering servicesMetal-working machine toolsMetalworkingMiscellaneous special-purpose machineryPumps and compressors
+4 moreTanks, reservoirs, containers and pressure vesselsTechnical inspection and testing services
Delivery area
UK
Official registry OCID
ocds-h6vhtk-07b87d Find a Tender

How to participate & submission route

Official notice Submit via ProContract (Due North)
Submission portal named on this notice: ProContract (Due North) · Who buys & how to bid on ProContract
Supplier login requiredElectronic submission allowedLanguage: EN
Access & registration note: Free · short registration with manual review; public opportunity list
Requests to participate (first stage)
—
Appointment period ends
8 Dec 2026, 13:00 GMT
Clarification deadline
2 Dec 2026, 13:00 GMT
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Submissions should be submitted via Proactis e-tendering portal. supplierlive.proactisp2p.com/Account/Login ↗

Timeline

10 Nov 2026 → 8 Mar 2027 · 5 dates
  1. Tender notice publishedjust passed
    10 Nov 2026, 12:27 GMT
  2. Today
    10 Nov 2026
  3. Clarification questions byin 22 days
    2 Dec 2026, 13:00 GMT
  4. Admission / appointment period endsin 28 days · period end, not a bid countdown
    8 Dec 2026, 13:00 GMT
  5. Award decision expected byin 76 days
    25 Jan 2027, 23:59 GMT
  6. Contract startsin 117 days
    8 Mar 2027

Notice history

1 event · 1 release on Find a Tender
  1. Tender notice published
    10 Nov 2026, 12:27 GMT
    UK4

Commercial outcome & contract awards

Nothing awarded yet
Awards (0)
No award published
Contracts (0)
No contract published
Bid statistics
No aggregate bid statistics published

Contracting authority & participating public bodies

United Kingdom National Nuclear Laboratory

Contracting authorityPublic authority - sub-central government GB-PPON: PVXT-8784-YGNV 5th Floor, Chadwick House, Warrington, North West, WA3 6AEContact name, email

Official documents & specifications (1)

Official links; attachments are not copied

Notices published for this procedure

  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender