Two joint ventures have won the race to be design-and-build contractors on Thames Water’s £3 billion AMP6 alliance, according to reports.
It is understood that a Skanska/MWH/Balfour Beatty JV and a partnership of Costain/Veolia/Atkins have been successful in bidding for the programme.
The winners have been selected from the shortlist of five, which Thames drew up last month, though originally the contract was going to be shared by four contractors.
The joint ventures to miss out are the GMM JV (Galliford Try, Morrison Utility Services/Mott MacDonald); the Tamesis Plus JV of Laing O’Rourke, Imtech and Barhale; and a partnership between Murphy Group, Black & Veatch and Aecom – MBVA JV.
The alliance will plan and construct schemes for Thames Water’s investment programme for 2015-2020. As well as the design/build contractors, the alliance board will be made up of a programme manager, technology and innovation provider, and a representative from Thames Water.
It has also been understood that MWH has been chosen as programme manager, beating CH2M Hill and Amec to the position.
AECOM and IBM are vying for the technology and innovation provider spot.
The working principles of the company’s AMP6 alliance represent a big change from past delivery models. They include a joint team working with an integrated supply chain, boosting safety and efficiency and making sure solutions delivered are sustainable and value for money in the future.
The AMP6 alliance will get involved early in shaping Thames Water’s business plan for the next five-year period.
Under Thames Water’s new delivery model, potential suppliers will have the opportunity to gain up to 12 years of work if they align effectively with the alliance’s shared values and business objectives.
Thames Water has declined to comment on the reports but an announcement is expected later in the month.
With the UK government demanding a 50% reduction in storm overflow spills by 2029, the era of reactive management is over. Speaking in the House of Commons on 21 July 2025, then environment secretary Steve Reed said, “This Government will cut water companies’ sewage pollution in half by the end of the decade.”
ERG, the leading supplier of odour control systems and industrial gas cleaning & thermal systems, has been awarded the coveted King’s Award for Enterprise.
Welsh Water’s new artificial intelligence-driven tool, ORAI, has been shortlisted for three categories at the prestigious British Data Awards 2026 – underscoring the company’s commitment to using cutting-edge technology to deliver better outcome for customers.
Barhale has completed work on two separate Rapid Action Taskforce Spills projects it is carrying out for Severn Trent.
Hear how Scottish Water has completed its £235 million Ayrshire Glasgow Resilience Project - customers across Greater Glasgow, Ayrshire and East Renfrewshire will now benefit from a more secure and resilient water supply.
Hear how United Utilities is accelerating its investment to reduce spills from storm overflows across the Northwest.
Find out more about the remarkable career opportunities on offer at WSP - scroll down to watch the inspirational video.