Soletanche Bachy offers foundations and geotechnical solutions for all types of structure, from the largest international infrastructure to small local projects.

Bridges, highways, rail links, tunnels, dams, mines, power stations, buildings, towers, ports: as general contractor or specialist subcontractor, we offer foundations solutions and soil technologies for the design, construction, remediation, and commissioning of our clients projects.

Soletanche Bachy carries out new pipe installations and remediation of existing systems.


Storm basins, drinking-water reservoirs whether underground or surface, pumping stations, purification plants, sewers, and underground outlets and inlets dug by tunnelling or boring: we construct turnkey projects from the foundations through to the civil engineering and commissioning of a project.

Soletanche Bachy places its experience and equipment in the service of its clients. Our expertise means we can work at any depth on infrastructure of any shape: rectangular, circular, bi- or tri-lobe, deep or partially buried.