Gaztransport & Technigaz is an engineering company specialized in membrane containment systems for liquefied gas transport and storage. Co. designs and markets technologies which combine operational efficiency and safety to equip liquefied natural gas (LNG) carriers, LNG floating platforms and multi-gas transport vessels. Co. also provides solutions for onshore storage tanks and the use of LNG as a fuel for vessels propulsion as well as a wide range of services in engineering, consultancy, training, maintenance assistance and technical studies at each stage of the liquefied gas chain.

Quantel and its subsidiaries are engaged in the production, development and distribution of lasers for medical applications mainly in ophthalmology and dermatology. Co. produces lasers for scientific instrumentation involved in research and development and underwater lasers. Co. also provides laser impulses for industrial applications such as laser cleaning or material processing.