Three major contractors have become the latest to confirm their plans to bid for High Speed 2 enabling and main works packages.
A spokesman said their combined experience in delivering “high-profile infrastructure projects safely, on time and on budget, has established their reputation”.
He added: “Therefore, their alliance was formed naturally as a sound choice for the future delivery of the HS2 enabling and main works packages.”
The firms collectively employ more than 20,000 people and have a combined parent group turnover of more than £12.5bn.
Bouygues Travaux Publics and VolkerWessels recently worked together on the £260m New Tyne Crossing in the North-east and are currently delivering the design and build civils packages for the Saint Martin Island power plant in the Caribbean.
Between them, the contractors have successfully completed 178 km of high-speed rail, 343 km of rail tunnel and more than 875 km of linear projects internationally.
Other major contractors joint ventures together for HS2 include Laing O’Rourke, FCC Construcción and Murphy, which have combined under the LFM banner.