BESSAC is a worldwide major tunnelling / microtunnelling contractor. We delivered projects in 33 countries on 5 continents.
BESSAC masters all mechanized excavation techniques (microtunnelling, EPB TBM, Slurry TBM, air pressurized TBM, hard rock TBM) and has over 140 km of microtunnelling and tunnelling experience in last 10 years.
Our industrial division can also design and manufacture TBMs and equipment for underground works.


CEO : Dominique Mazzieri;

Deputy CEO : Yann Rouillard;

Commercial Manager : Pascal Moliner