Sellafield Ltd is the company responsible for safely delivering decommissioning, reprocessing and nuclear waste management activities on behalf of the Nuclear Decommissioning Authority

Company Overview

Relationship diagram

Nuclear Decommissioning Authority


The Nuclear Decommissioning Authority (NDA) is a non-departmental public body created through the Energy Act 2004. They are a strategic authority that owns 19 sites and the associated civil nuclear liabilities and assets of the public sector, previously under the control of United Kingdom Atomic Energy Authority (UKAEA) and British Nuclear Fuels Ltd (BNFL).

Their mission is to deliver safe, sustainable and publicly acceptable solutions to the challenge of nuclear clean-up and waste management. This means never compromising on safety, or security, taking full account of the social and environmental responsibilities, always seeking value for money for the tax payer, and actively engaging with stakeholders.

"Our purpose is to deliver the decommissioning and clean-up of the UK's civil nuclear legacy in a safe and cost-effective manner. Our prime focus is on maximising progress on the highest hazards and risks while ensuring that safe, secure and environmentally responsible site operations are maintained across our estate, delivering value for money for the taxpayer."

John Clarke

Sellafield Ltd

Sellafield Ltd

Sellafield Ltd is the company responsible for safely delivering decommissioning of the UK’s nuclear legacy as well as fuel recycling and the management of low, high and intermediate level nuclear waste activities on behalf of the Nuclear Decommissioning Authority.

Sellafield Ltd has sites at Sellafield in West Cumbria and engineering, design and functional support capability are  provided by employees based at our Risley office, near Warrington.

Under the ownership of Nuclear Management Partners (NMP), we are safely delivering nuclear decommissioning, waste management and commercial operations and by continually raising our performance we will achieve the Nuclear Decommissioning Authority’s (NDA) vision to become the site and workforce of choice for potential new missions.

"We at Sellafield bear a constant accountability for the safe and secure management of our business on behalf of the UK and the nuclear industry as a whole. The coming years move us into ever more challenging times as we embark upon retrievals from our most hazardous facilities whilst simultaneously concluding reprocessing and building the next generation of nuclear facilities. We must hold ourselves to the highest standards of nuclear professionalism at all times and continue to demonstrate that we are worthy of the trust placed upon us."

Paul Foster
Managing Director

Nuclear Management Partners


Nuclear Management Partners (NMP) brings together the global nuclear experience of American company URS, British company AMEC and French company Areva to deliver the safe acceleration of hazard and risk reduction across Sellafield Ltd.

As the Parent Body Organisation for Sellafield Ltd, the NMP consortium is managing and operating the Sellafield site in West Cumbria and the engineering design capability based at Risley in Warrington.

The Nuclear Management Partners mission is being delivered under the leadership of a team with proven ability and expertise. They are working together with both Sellafield Ltd and the site owners, the Nuclear Decommissioning Authority; to make Sellafield cleaner, safer, more productive, more cost effective and a better neighbour.

"We are delivering excellence at Sellafield Ltd through People, Partnership and Performance. Our priority is to safely manage the most complex nuclear site in the world which demands a unique combination of skills. We are delivering this work in partnership with Sellafield Ltd, the supply chain and stakeholders."

Tom Bishop