HS2 Ltd has begun looking for companies to transform London Euston station and build a new transfer hub at Old Oak Common in readiness for a high-speed rail line.
Those investments are estimated to help create up to 29,000 homes and 79,000 jobs in the areas surrounding.
HS2's Birmingham stations are also thought to create around 6,000 homes and 52,000 jobs, contracts of which will be awarded in 2018.
The chosen bidders will become construction partners with HS2 and the Euston and Old Oak Common designers, with responsibilities in programme management as well as procuring, integrating and managing the supply chains.
Paul Maynard, Transport minister said:
"The winning bidders will need to ensure that the stations provide the best possible customer experience. But there will also be huge and exciting opportunities for development around all HS2 station sites, not just in London and the West Midlands, but also in Manchester, Leeds, Sheffield, and the East Midlands, unlocking huge opportunities for new jobs, homes and economic growth."
