---
title: "UKRI-5692 ISIS MUSHROOM/WISH-II Neutron Guides"
ocid: "ocds-h6vhtk-065bc5"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-065bc5"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-065bc5.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-065bc5.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "UK RESEARCH & INNOVATION (UKRI)"
published: "2026-05-08"
---

# UKRI-5692 ISIS MUSHROOM/WISH-II Neutron Guides

Buyer: UK RESEARCH & INNOVATION (UKRI)  
Current stage: Award  
OCID: ocds-h6vhtk-065bc5

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-065bc5)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-065bc5.json)

## Summary

The public procurement process for the UKRI-5692 tender, led by UK Research & Innovation (UKRI), involves the development and installation of the MUSHROOM and WISH II neutron guides. These optical and precision instruments are intended for the ISIS Neutron and Muon Source facility in Oxfordshire, United Kingdom. The tender, adhering to an open procurement method, reached the contract award stage on 8th May 2026, following its initial announcement on 25th February 2026. The contract, completed with a gross value of £2,029,584, engages SwissNeutronics AG as the supplier. The procurement falls under the 'Laboratory, optical and precision equipments' category, with key project milestones including the contract's commencement on 29th May 2026 and conclusion by 31st October 2027.

This procurement presents significant opportunities for businesses in the laboratory and precision equipment sector, especially those involved in the design and installation of neutron guides. The open procedure allows for broad competition, encouraging innovation and value in the bids. While SwissNeutronics AG, a large-scale company, has been awarded the contract, the invitation to tender had also been suitable for SMEs capable of delivering on both quality and price, with quality holding a substantial weight in the evaluation criteria at 70%. Businesses with expertise in high-precision instrumentation, and experience in significant public projects, would find such tenders ideal for expanding their portfolio and market presence.

## Notice

This Tender specifies the requirements for the supply of the MUSHROOM and WISH II neutron guides. Both are to be supplied under this contract. The guides will be installed at the ISIS Neutron and Muon Source facility in Oxfordshire. ISIS uses neutrons produced via spallation in a variety of beamlines to investigate material properties and life sciences. The MUSHROOM instrument project will deliver a new instrument to be used for indirect spectrometry located on Target Station 2, port W8.. The WISH-II instrument will deliver a cold neutron diffractometer located on Target Station 2, port E9. The requirement is to design, supply, install, test and align (approximately 37.1m for MUSHROOM and 33.3m for WISH II) of straight, elliptical neutron guide with the M-values and reflectivity described in the Tender documents, and the associated housings and supports. Please refer to the two technical specifications and ITT documentation for the full suite of requirements.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/042591-2026 |
| Notice type | UK6 - Contract Award Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 8 May 2026 |
| Submission deadline | 1 Apr 2026 |
| Future notice date | Not specified |
| Award date | 7 May 2026 |
| Contract period | 28 May 2026 - 31 Oct 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,500,000 |
| Lots value | £1,500,000 |
| Awards value | £1,691,320 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Pending |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UK RESEARCH & INNOVATION (UKRI) |
| Locality | SWINDON, WILTSHIRE |
| Post town | Swindon |
| Postcode | SN2 1FL |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK7 Gloucestershire and Wiltshire |
| ITL 3 | TLK71 Swindon |
| Local authority | Swindon |
| Electoral ward | Rodbourne Cheney |
| Westminster constituency | Swindon North |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SWISSNEUTRONICS |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)

### Codes

- 38000000 - Laboratory, optical and precision equipments (excl. glasses)

## Release History

- 8 May 2026 at 13:50 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/042591-2026
- 25 Feb 2026 at 11:06 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/016783-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/042591-2026
  8th May 2026 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/016783-2026
  25th February 2026 - Tender notice on Find a Tender

## Notice URLs

- https://ukri2.my.salesforce-sites.com/ProSpend__CS_ContractPage?SearchType=Projects&uid=a1MTm000009zJN7MAM&searchStr=&sortStr=Recently+Published&page=1&filters=&County=
- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://www.ukri.org/

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-065bc5. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-065bc5.json.