Morgan Sindall, Costain and Hochtief have secured a 15-year deal at the Sellafield nuclear clean-up site.
The trio will work on the site's Infrastructure Delivery Partnership (IDP), a long-term arrangement to modernise and maintain essential services, including power, water, transport and security systems.
The firms will handle detailed design, procurement, construction, commissioning and handover, supporting Sellafield's nuclear decommissioning and waste management work.
The new Infrastructure Delivery Partnership replaces the Infrastructure Services Alliance with Morgan Sindall and Arup
The deal, which runs until 2040, forms a core part of Sellafield's long-term acquisition strategy.
Author's summary: Trio wins £2.9bn Sellafield deal.