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#h6vhtk-050366
Published 16 Sept 2026, 14:51 BST
Official UK Procurement Procedure
Supply of HEPA Filters — UK Public Procurement Procedure
Authority:Sellafield Limited(Public Body)
Framework Agreement
Multi-lot
goods
Competitive flexible procedure
Above threshold
WTO GPA (GPA)
SME suitable
Sectors:
CPV 42
Delivery:
Framework ceiling (notional)
£6,500,000
Submission deadline
26 Oct 2026, 12:00 GMT
Clarification Cut-Off
26 Oct 2026, 12:00 GMT
Contract duration
5 yrs
What is being bought & procurement scope
Procurement Scope & Specification
Executive Summary: Sellafield Limited: "Supply of HEPA Filters". Published status: active. Published value: £6,500,000. 2 published lots. Recorded submission deadline: 26 Oct 2026, 12:00 GMT. Published submission portal: atamis-2464.lightning.force.com.
Official Requirement Description:
The Detailed Design, Manufacture, Test, Supply and Delivery of Nuclear Grade Air Filters, including High Efficiency Particulate Air (HEPA) Filters to the NDA Operating Companies; Sellafield Ltd, NRS and NRS Dounreay.
All HEPA Filter items produced must meet the relevant Sellafield Ltd specifications.
The items will be ordered as required as call off orders and there is no guarantee of volumes. There is a requirement for type testing across the goods specifications.
Full specifications and procurement documents for this tender are available to interested parties who register on Atamis project C8489, details on how to do this are contained within this notice.
A preliminary Market Engagement (UK2) Notice has not been issued ahead of this Tender (UK4) Notice, this is because a Prior Information Notice (PIN) was issued in January 2025 to inform the market of a Market Engagement Event that was held, a link to this notice is contained in the following link https://www.find-tender.service.gov.uk/Notice/001878-2025
The event was run in May 2025. A copy of the presentation slides delivered during this market engagement event have been uploaded into Atamis Project C8489, under the Documents Folder 0. Market Engagement.
Lots and requirements (2)
Procurement Structure
- Lot 1 · #1Lot 1activePublished value£270,000Lot 1 – Smaller Basket comprising of the following items: • Mini Pleat HEPA Filters. Unmodified. Type I & II • Large Circular Filters (Internal and External Seal) stainless steel case • Large Circular Filters (Internal Seal) PU case. • In line canister filters (flanged) • • Push through HEPA filters (stainless steel case)Contract period:1 Jul 2027 — 30 Jun 2032 (5 yrs)Eligibility:SME eligible
- Lot 2 · #2Lot 2activePublished value£4,100,000Lot 2 – Larger Basket comprising of the following items: • Deep pleat HEPA Filters (with and without features) • Mini-pleat filters modified with lifting features & attachments • Large Circular HEPA filters mild steel (Internal & external Seal) • In line Canister HEPA Filters (screwed) • In line Canister HEPA Filters (painted mild steel) • Specialist HEPA Filters & accessories • Small HEPA FiltersContract period:1 Jul 2027 — 30 Jun 2032 (5 yrs)Eligibility:SME eligible
Published award criteria & contract terms
From this notice
Only criteria and terms published on this notice. Conditions of participation in the tender pack are not inferred.
Evaluation weighting
Quality: 120
Price: 60
Social value: 20
Published sub-criteria
- Technical — 60
- Technical — 60
- Commercial — 30
- Commercial — 30
- Social Value — 10
- Social Value — 10
Published terms
Contract duration5 yrs
Procedure terms & legal framework
| Procedure method | Competitive flexible procedure | Legal basis | UKPGA · 2023/54 Procurement Act 2023 | Procurement category | goods |
|---|---|---|---|---|---|
| Notice status | Open for tender | Procurement threshold | Above threshold (FTS publication) | Regulatory regime | Standard commercial regime |
| Commercial structure | Framework agreement | Competition type | Competitive procedure | GPA WTO covered | {"GPA"} |
| Recurring procurement | Yes · Anticipated re-tender | First published | 16 Sept 2026, 14:51 BST | Last source update | 16 Sept 2026, 14:51 BST |
| Award evaluation window | Submission end — 8 Jan 2027, 23:59 GMT | Estimated future notice | 6 May 2026, 23:59 BST | Classification (CPV) | Air filters |
| Delivery area | |||||
| Official Registry OCID | ocds-h6vhtk-050366 | ||||
How to participate & submission route
Authorized E-Sourcing Portal
Supplier login required
Online submission allowed
Language: EN
Access & Registration note: Free · one account PER buying organisation portal · password resets come "from Salesforce.com" (check spam)
| Expression of interest (EOI) | 26 Oct 2026, 12:00 GMT | Tender submission deadline | 26 Oct 2026, 12:00 GMT | Clarification deadline | 26 Oct 2026, 12:00 GMT |
|---|---|---|---|---|---|
| Submission channel | Official e-sourcing portal | Electronic submission | Allowed | Accepted languages | en |
| Participation fee | Free of charge (Open access) | ||||
Detailed Submission Instructions & Authority Contacts
Timeline
- Pipeline notice
12 May 2026, 15:28 BST - Pipeline notice
15 Apr 2026, 13:55 BST - Pipeline notice
8 May 2025, 09:39 BST - Pipeline notice
15 Apr 2025, 15:23 BST - Procedure published
16 Sept 2026, 14:51 BST - engagement
22 May 2026, 23:59 BST · scheduledPrior to the publication of the forthcoming HEPA Filters Tender, Sellafield Ltd is reviewing the initially proposed procurement strategy and the market feedback received during earlier market engagement activities. This review is being undertaken to ensure that the procurement approach taken is appropriate for both the supply market and The NDA Group Operating Companies. As part of this process, Sellafield Ltd is seeking to re-engage with the market to validate and further understand supplier views on specific elements of the proposed strategy. In particular, feedback is invited on the following areas: 1. Contracting Strategy Supplier views are requested on the suitability and viability of a dual source contracting model (i.e. the appointment of two suppliers) for the scope of HEPA Filters. 2. Proposed Lotting Structure Supplier feedback is requested on the following indicative lotting structure, should a two supplier model be adopted: Lot 1 – Smaller Basket, comprising: • Mini Pleat HEPA Filters. Unmodified. Type I & II • Large Circular Filters (Internal and External Seal) stainless steel case. • Large Circular Filters (Internal Seal) PU case. • In line canister filters (flanged) • Push through filters (stainless steel case) Lot 2 – Larger Basket, comprising: • Deep pleat HEPA Filters (with and without features) • Mini-pleat filters modified with lifting features & attachments • Large Circular HEPA filters (Internal and external Seal) mild steel casing. • In line Canister HEPA Filters (screwed) • Push through filters (mild steel and PU case) • Specialist HEPA Filters & accessories • Small HEPA Filters Responses to this market engagement will help inform Sellafield Ltd’s ongoing strategy development. Participation in this exercise is voluntary and does not form part of any formal procurement process, nor does it create any commitment to proceed in line with the approaches outlined above. Please respond via an Atamis message against Atamis record Reference C21795 which is used for market engagement only (See the following Atamis portal Link) https://atamis-2464.lightning.force.com. Interested suppliers are to register against project C21795, access the document in the folder titled 'Request for Information (RFI) Version 2.0' and then send your completed response via the Atamis messaging portal. Please also register against Atamis Project C8489 for the upcoming tender using the link provided. If you encounter any issues in doing this, please forward your response directly to [email protected] The deadline for providing your feedback is Friday 22nd May at BST 16.00 - Clarification deadline
26 Oct 2026, 12:00 GMT - Submission deadline
26 Oct 2026, 12:00 GMT
Commercial outcome and contract awards
Awards (0)No award published |
Contracts (0)No contract published |
Bid statisticsNo aggregate bid statistics published |
Notice history
From official release and amendment events
- tender value changed
16 Sept 2026, 14:51 BST - Status changed to active
16 Sept 2026, 14:51 BST - Official notice release published
16 Sept 2026, 14:51 BST - procurement method changed
16 Sept 2026, 14:51 BST - Published value updated to £6,500,000
12 May 2026, 15:28 BST - Official notice release published
12 May 2026, 15:28 BST - procurement method changed
12 May 2026, 15:28 BST - tender value changed
15 Apr 2026, 13:55 BST - Official notice release published
15 Apr 2026, 13:55 BST - procurement method changed
15 Apr 2026, 13:55 BST - Published value updated to £6,977,251
8 May 2025, 09:39 BST - Official notice release published
8 May 2025, 09:39 BST - Official notice release published
15 Apr 2025, 15:23 BST
Contracting authority & participating public bodies
Sellafield Limited
Contracting authority
Public Body
Official Documents & Specifications (6)
Official links; attachments are not copied
- 16 Sept 2026, 14:51 BST
- 12 May 2026, 15:28 BST
- 15 Apr 2026, 13:55 BST
- 8 May 2025, 09:39 BST
- 15 Apr 2025, 15:23 BST