Five consortia shortlisted for the Brenner Base Tunnel project May 15, 2017 | Europe Company News BBT SE, the developer of the Brenner Base Tunnel (BBT) project, has shortlisted five consortia for the construction of the Pfons-Brenner section. The scope of work includes the excavation of the main ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password