Geostock  is an international company specialising in consultancy, engineering, design, construction management, operation and maintenance services for Underground Storage facilities.

Geostock’s services are available throughout the life of an underground storage facility, whatever the technique used or products stored. With its 50 years’ experience, Geostock boasts unique expertise and is a leading company which has grown continuously since it was first set up, and now employs 500 staff.

Geostock is a subsidiary of Vinci Construction Grands Projets and is established in every continent, offering proximity services to its clients and partners. The company is able to provide a raft of skills as well as the resources necessary to guarantee a high degree of reactivity and top quality service.

Underground storage is Geostock’s core activity. Staffs are multi-skilled and can deal with all the various techniques used in this sector: salt caverns, mined caverns and porous reservoir.

Construction

Engineering

Geostock

Geostock's headquarters in Rueil Malmaison, France

This department focuses on assessing and managing environmental factors related to water quality and corrosion.

Environmental Sciences

This department focuses on industrial risk engineering, project studies, and geotechnical evaluations.

Engineering and Risk Management

The Engineering team at Geostock focuses on the end-to-end development, maintenance, and management of underground storage facilities. This multidisciplinary group is responsible for civil engineering, geotechnical analysis, drilling operations, instrumentation, and project management, ensuring the safe and efficient storage of various products using techniques such as salt caverns, mined caverns, and porous reservoirs.

This department oversees strategic direction and operational management across the organization.

Executive Leadership

This department provides essential administrative assistance and project support within the organization.

Administrative Support

This department is responsible for the design, development, and upkeep of engineering systems and maintenance activities.

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Other teams

Engineering and Risk Management

Engineering

Executive Leadership

Administrative Support

Engineering and Maintenance