The announcement comes after Euston station was closed last weekend for essential HS2 preparatory work.
The successful bidders will act as construction partners and will be responsible for programme management as well as procuring, integrating and managing the complex supply chains.
Around 4,000 jobs are expected to be supported during the construction of the two stations.
“The launch of the search for construction teams to build the southern HS2 stations is another major step towards making Britain’s new railway a catalyst for growth across the country,” said Paul Maynard, transport minister.
“And next year, HS2 Ltd will begin the hunt for companies to build the two Birmingham stations.
- First major HS2 contracts signed
- HS2 reveals Euston master development partner shortlist
- HS2 construction contracts worth £6.6bn announced
“The winning bidders will need to ensure that the stations provide the best possible customer experience.”
Mark Thurston, chief executive of HS2 Ltd, said that launching this competition was a major milestone for HS2.
“Over the next decade, the successful bidders will go on to build two of the most challenging and high-profile elements of the project: a brand new transport hub at Old Oak Common that will kick-start the regeneration of the site, plus a major expansion of Euston.
“We’re looking for the best the construction industry has to offer.
“Companies that share our commitment to safety, efficiency, environmental protection and value for money.”
Bidders for both contracts are expected to be invited to tender their offer by the end of the year with the contract rewarded in autumn 2018.