Which companies are worked in Laerdal tunnel Norway project?

The Laerdal Tunnel project in Norway involved several key companies, including the Norwegian Public Roads Administration (Statens vegvesen), which oversaw the project. Other notable contributors included the construction firm Veidekke and the engineering consultancy Norconsult. The project also involved various subcontractors and specialists in tunnel construction and safety systems. These companies collaborated to create the world's longest road tunnel, emphasizing safety and efficiency.