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Published 27 May 2026, 13:10 BST

Official UK procurement notice

9005401 - Supply of K14 SWIFT Beamline KB Mirror System

Official notice

Authority: DIAMOND LIGHT SOURCE LIMITED (Central government)

GoodsOpen procedureAbove thresholdSME suitable
Sectors: Laboratory, optical and precision equipments (excl. glasses) (38) Delivery: South East (UKJ14)
Published estimate£250,000≈ £176k / year · £300,000 inc. VAT42% above published estimate
Submissions closed 26 Jun 2026awarded 27 Aug 2026
Awarded to XDS OXFORD LIMITED
Contract term 1 yr 5 moends 13 Dec 2027 · starts 21 Jul 2026

What is being bought

Published requirement description

Located on the Harwell Science & Innovation Campus in Oxfordshire, Diamond Light Source (DLS) is a leading-edge facility for science, engineering and innovation. DLS allows researchers from academia and industry to investigate the structure and behaviour of the world around us at the atomic and molecular level.

To continue delivering the world-changing science that Diamond enables, the facility is being upgraded to Diamond-II, a co-ordinated programme of development that combines a major machine upgrade with new instruments and complementary improvements to optics, detectors, sample environment and delivery capabilities, and computing, as well as integrated and correlative methods. This will be transformative in speed and spatial resolution and will offer users streamlined access to enhanced instruments for life and physical sciences.

The scope of the contract is for the design, supply of material, manufacture, assembly, test, delivery, installation and commissioning of a two-mirror combined system (a pair of

Kirkpatrick-Baez (KB) mirrors) and its position adjustment systems. The mirrors will focus the beam onto a sample positioned in the K14 beamline second end-station.

  • The minimum scope of the contract should include: HFM - Horizontally Focusing Mirror Horizontally (outboard) reflecting, monochromatic beam mirror & mechanics.
  • VFM - Vertically Focusing Mirror- Vertically (upward) reflecting, monochromatic beam mirror & mechanics.
  • Temperature monitoring for interlocking.
  • Vacuum vessel.
  • Support frame.
  • Interface to beamline services.
  • Training for Diamond personnel in the operation of the mirrors
  • Installation of the mirrors in their benders at the DLS Optics Metrology Lab (OML).

CPV: Mirrors

The lotProcurement structure

single lot · value published
Lot #1Awarded 1 yr 5 moSMEPublished value£250,000
Contract period: 21 Jul 2026 – 13 Dec 2027 (1 yr 5 mo)Value: £250,000 exc. VAT · £300,000 inc. VAT
Delivery: South EastEligibility: SME eligible
38622000 Mirrors

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
How bids were scored
Quality: 55%Price: 45%
Published sub-criteria (5)
  • Technical Quality: 25%
  • Experience & Capacity: 25%
  • Delivery: 5%
  • Commercial: 5%
  • Price: 40%
Published award criteria (5)
  • Technical Quality
  • Experience & Capacity
  • Commercial
  • Delivery
  • Price
What this means for your bid
  • Price carries 45 of 100 points: a 10% discount moves about 4.5 points. Quality carries 55 of 100: the paper moves it further than the discount.

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

Procedure terms & legal framework

From the official record
Procedure method
Open procedure
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Goods
Notice status
Awarded
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Yes (GPA)
Recurring procurement
Unspecified in notice
First published
27 May 2026, 13:10 BST
Last source update
21 Sept 2026, 13:39 BST
Award evaluation window
Submission end – 9 Jul 2026
Authority reference
9005401
FTS notice number
2026/S 000-049636
Latest notice
Contract details notice (UK7)
Classification (CPV)
Mirrors
Delivery area
South East (UKJ14)
Official registry OCID
ocds-h6vhtk-06a620 Find a Tender

How it was run

Official notice
Run through: portal not identified
Electronic submission allowedLanguage: EN
Submission deadline
26 Jun 2026, 12:00 BST
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Please email tender submission to:

diamond.ac.uk ↗

and send a hard copy to:

Diamond Procurement

Diamond House

Dimond Light Source Ltd

Harwell Science and Innovation Campus

Didcot

Oxon

OX11 0DE

United Kingdom

Timeline

27 May 2026 → 21 Sept 2026 · 7 dates
  1. Tender notice published154 days ago
    27 May 2026, 13:10 BST
  2. Submission deadline124 days ago
    26 Jun 2026, 12:00 BST
  3. Award decision expected by111 days ago
    9 Jul 2026, 23:59 BST
  4. Contract starts100 days ago
    21 Jul 2026, 00:00 BST
  5. Assessment summaries sent63 days ago
    27 Aug 2026, 00:00 BST
  6. Standstill ends50 days ago
    8 Sept 2026, 23:59 BST
  7. Latest notice published37 days ago
    21 Sept 2026, 13:39 BST

Notice history

5 events · 3 releases on Find a Tender · since 27 May 2026
  1. Tender notice published
    27 May 2026, 13:10 BST
    UK4
  2. Contract award notice published
    27 Aug 2026, 16:22 BST
    UK6
  3. Status changed to complete
    27 Aug 2026, 16:22 BST
  4. Contract signature expected
    9 Sept 2026, 23:59 BST
    scheduled
  5. Contract details notice published
    21 Sept 2026, 13:39 BST
    UK7

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Awards 1
Awarded value £355,0001 award exc. VAT
Bids received 33 from SMEs
Contracts signed 1latest 9 Sept 2026
Awarded toValueDateStatus
XDS OXFORD LIMITED9005401 - K14 SWIFT Beamline Kirkpatrick-Baez (KB) Mirrors System9 Sept 2026 – 9 Jan 2028£355,00027 Aug 2026Awarded

Contracts

  • 9005401 - Supply of K14 SWIFT Beamline KB Mirror System · XDS OXFORD LIMITED

    Signed
    9 Sept 2026
    Value
    £355,000
    Period
    9 Sept 2026 – 9 Jan 2028
    Status
    active

    No agreed KPIs: Contract value is below £5 million.

Bid statistics published by the authority

BidsSMEVCSEValid bid range
3final-stage tenders30—

Contracting authority & participating public bodies

DIAMOND LIGHT SOURCE LIMITED

Contracting authorityPublic authority - central government GB-COH: 04375679 · GB-PPON: PNGG-3778-PWBM Diamond House, Didcot, South East, OX11 0DEContact email

Bidders & participating suppliers

1 commercial party on the notice
  • XDS OXFORD LIMITEDAwarded supplierGB-COH: 04138193GB-PPON: PLZV-5432-GJHR Unit 1 Ferry Mills, Oxford, South East, OX2 0ESContact email

Official documents & specifications (4)

Official links; attachments are not copied

Tender pack and attachments

  • Technical specifications tenderTechnical specificationsVisit our web page: https://tenders.diamond.ac.uk Here Supplier are required to complete a one-off simple registration form. You are then able to login to register an interest against the tender and download the Tender Documents.

Notices published for this procedure

  • Contract details notice contractContract details noticeUK7Contract details notice on Find a Tender
  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender