Sellafield Awards £2.9bn Contracts to Key Infrastructure Partners

Strategic Insights -

The UK Government's Sellafield Ltd has announced the awarding of contracts worth up to £2.9 billion to Morgan Sindall Infrastructure, Costain Limited, and HOCHTIEF (UK) Construction Ltd for the delivery of non-nuclear infrastructure works on the Sellafield site. The Infrastructure Delivery Partnership (IDP) will support essential services such as electricity distribution, water, and security installations over the next 15 years, with an option to extend to 2040. The partnership aims to create value for money, investment in skills, innovation, capability, and sustainability, and commit to social impact strategies to benefit local communities.

Key Takeaways:

  • The contracts are worth up to £2.9 billion and will be delivered over 9 years, with an option to extend to 2040.
  • The Infrastructure Delivery Partnership (IDP) will deliver projects and tasks to support essential services at Sellafield, including electricity distribution, water, road and rail networks, bridges, foundations, and security installations.
  • The partnership will create investment in skills, innovation, capability, and sustainability to benefit Sellafield and its local communities.
  • The companies will complete detail design, plus all procurement, installation, construction, commissioning, and handover activities.
  • The contracts include commitments to support local business growth, create employment, and develop a skilled labour pool for IDP and local businesses.
  • The partnership will also develop a joint sustainability plan to ensure a joined-up approach aligned to local priorities and delivers maximum impact and return on investment.
  • The companies will commit to employee volunteering hours to support third-sector organizations.

Statistics:

  • The contracts are worth up to £2.9 billion.
  • The partnership will be delivered over 9 years, with an option to extend to 2040.
  • 3 lots are under the partnerships: electrical distribution partner - Morgan Sindall Infrastructure; utilities partner - Costain Limited; civils partner - HOCHTIEF (UK) Construction Ltd.
  • The contracts include commitments to support local business growth, create employment, and develop a skilled labour pool.
  • Employee volunteering hours will be committed to support third sector organizations.

Sources:

  • From: Sellafield Ltd Published 13 October 2025
  • James Riddick, Sellafield Ltd chief supply chain officer
  • Alex Vaughan, chief executive officer of Costain
  • Simon Smith, managing director, Morgan Sindall Infrastructure
  • Juan Santamaría Cases, CEO of HOCHTIEF