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HEPA Filters

SELLAFIELD LIMITED

This public procurement record has 4 releases in its history.

Planning

12 May 2026 at 14:28

UK2 - Preliminary Market Engagement Notice
Planning

15 Apr 2026 at 12:55

UK3 - Planned Procurement Notice
Planning

08 May 2025 at 08:39

UK1 - Pipeline Notice
Planning

15 Apr 2025 at 14:23

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Sellafield Limited, a sub-central government public authority based in Warrington, United Kingdom, is in the planning stage of a procurement process for the supply of High Efficiency Particulate Air (HEPA) Filters. The procurement is yet to reach the tender stage and is geared towards completing market engagement activities by 22nd May 2026. The initiative, titled "HEPA Filters," falls under the industry category of air filters, with a contract value estimated at £6,500,000. This process involves a dual source contracting strategy, aiming to secure two suppliers for the HEPA Filters, with the procurement method being a selective and competitive flexible procedure. The engagement is set to conclude with an expression of interest deadline by 30th May 2026.

This procurement creates substantial opportunities for businesses specializing in air filtration systems, especially small and medium-sized enterprises (SMEs). Given the complexity of the project, which includes design, manufacture, testing, and delivery of nuclear-grade air filters, businesses capable of meeting these technical specifications stand to benefit significantly. The opportunity to become one of the dual suppliers allows companies to partake in a significant commercial relationship with the NDA Group's operating companies. These businesses must be prepared for type testing and obtaining necessary type approval registrations for HEPA Filters to be used on UK Nuclear Licensed Sites, presenting a strategic growth opportunity for SMEs aiming to establish or expand their presence in the nuclear sector.

How relevant is this notice?

Notice Information

Notice Title

HEPA Filters

Notice Description

The Detailed Design, Manufacture, Test, Supply and Delivery of Nuclear Grade Air Filters, including High Efficiency Particulate Air (HEPA) Filters to the NDA Group

Lot Information

Lot 1

Lotting options for lot 1 will be confirmed within tender documents

Lot 2

Lotting options for lot 2 is being reviewed and will be confirmed within tender documents

Planning Information

Prior 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 jasmine.lane@sellafieldsites.com The deadline for providing your feedback is Friday 22nd May at BST 16.00

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-050366
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/043551-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Framework
Procurement Category
Goods
Procurement Method
Selective
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

42 - Industrial machinery

CPV Codes

42514310 - Air filters

Notice Value(s)

Tender Value
£6,500,000 £1M-£10M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
12 May 20261 months ago
Submission Deadline
Not specified
Future Notice Date
6 May 2026Expired
Award Date
Not specified
Contract Period
30 Sep 2026 - 30 Sep 2031 Over 5 years
Recurrence
2026-05-27

Notice Status

Tender Status
Planned
Lots Status
Planned
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SELLAFIELD LIMITED
Additional Buyers

SELLAFIELD LTD (WEST CUMBRIA HSE)

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 6GR
Post Town
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

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

JSON Markdown

The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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