Open tender

Design and Support Services for Sellafield Remediation and Security

Sellafield is seeking specialized design support and client oversight services for site remediation and security enhancement programs through the CCS RM6356 framework.

United Kingdom· North WestPublished 10 Aug 2026· TodayFind a Tender

Decision brief

4 fields
  • Contract value
    Not disclosed
    Source did not declare a figure
  • Closing date
    Rolling
    No closing date published
  • Sector
    Browse related listings
  • Location
    United Kingdom
    North West

Lifecycle

Open

Open tender — no closing date published. Opened today.

10 August 2026
Open tender · no closing date published

Brief

This opportunity seeks design support and client oversight services for the Sellafield Site remediation and security initiatives. Services include: intelligent client support and project oversight; front-end design strategy and pre-Outline Business Case development; and specialized nuclear and technical expertise for two key programs: (1) remediation and decommissioning of the Sellafield Site with safe waste treatment and storage capabilities, and (2) security enhancements across the Sellafield facility. This procurement will be conducted through the Crown Commercial Service framework RM6356, which streamlines access and compliance for qualified suppliers in the nuclear sector.

Track record

3 awards · 3 winners
Open field

No single supplier dominates the field.

In professional services, SELLAFIELD LTD has awarded 3 contracts to 3 suppliers.

Who wins here

Across professional services, the most active winners are REED SPECIALIST RECRUITMENT LIMITED, KPMG LLP, Hays Specialist Recruitment Ltd — the field to beat, or your route in as a partner.

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