UK contractors are among the nine joint ventures that have applied to prequalify on the €5.5bn (£4.7bn) Fehmarnbelt project link between Denmark and Germany, promoter Femern announced last week.
Twenty four companies have formed nine joint ventures to bid for the 19km tunnel between Rødbyhavn on the Danish coast and Fehmarn in Germany.
Femern refused to name any of the bidders, but said it will name the prequalified joint ventures in the spring. It expects to sign construction contracts in 2015.
Construction firms from Denmark, Germany, Italy, Spain, the Netherlands, Belgium, France and South Korea are leading the nine joint ventures.
British and United States companies are associated with some of the contractors.
Four civil engineering contracts to build the four lane motorway and double track electrified rail line are up for grabs.
Contracts to build the north and south sections of the tunnels are worth about £1bn each.
Work includes a £334M dredging and land reclamation contract and a £502M contract to construct portals and ramps and carry out other land works.
“I’m optimistic that we’ll be able to prequalify a suitable number of professional and experienced contractors,” said Femern technical director Steen Lykke.