---
title: "HEx1 Phase 1A - Define"
ocid: "ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "SELLAFIELD LTD"
published: "2025-12-08"
---

# HEx1 Phase 1A - Define

Buyer: SELLAFIELD LTD  
Current stage: Award  
OCID: ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36.json)

## Summary

Sellafield Ltd, located at Hinton House in Risley, has completed the procurement process for the HEx1 Phase 1A - Define project. This contract focuses on design support services, specifically involving the independent integration of design for the Heat Exchanger lifting scheme. The award was finalized on 19th November 2025, and the contract duration extends until 3rd May 2027. This procurement, which follows a selective method through a call-off from a framework agreement, was part of the services category. The project is situated in the North West region of the United Kingdom, with a total contract value of £2,913,847.08.

This tender presents significant opportunities for businesses specialising in engineering and integration services within industrial design sectors. Companies involved in hardware manufacturing, particularly those with experience in lifting equipment, could greatly benefit from this contract. Moreover, businesses capable of providing UKCA Marking and technical documentation support align well with the contract's requirements. Despite the scale of the project, it's not specifically aimed at SMEs or VCSEs, suggesting that larger enterprises or those with considerable resources and experience are more suited to deliver optimal results.

## Notice

The scope of the Phase 1A Define contract is to provide: Independent integration of the Phase 1A design for the Heat Exchanger lifting scheme and equipment including lifting collars and cradles; Ongoing support to Sellafield during the manufacturing phase, ultimately providing UKCA Marking, Declarations of Conformity and completed Technical File to the Employer on key products.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/6fc42b82-9a81-465c-8a84-e188d800a9f1 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 8 Dec 2025 |
| Submission deadline | 1 Aug 2025 |
| Future notice date | Not specified |
| Award date | 19 Nov 2025 |
| Contract period | 19 Nov 2025 - 3 May 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £4,000,000 |
| Lots value | Not specified |
| Awards value | £2,913,847 |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SELLAFIELD LTD |
| Locality | RISLEY |
| Post town | Warrington |
| Postcode | WA3 6GR |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | TLD North West (England) |

## Supplier

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

## CPV Codes

### Divisions

- 79 - Business services: law, marketing, consulting, recruitment, printing and security

### Codes

- 79933000 - Design support services

## Release History

- 8 Dec 2025 at 13:34 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/6fc42b82-9a81-465c-8a84-e188d800a9f1

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/6fc42b82-9a81-465c-8a84-e188d800a9f1
  8th December 2025 - Awarded contract notice on Contracts Finder

## 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-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-14a20e50-aef8-4283-a6fd-f626a47fee36.json.