CALNESIS is a company emerging from the Institute of Chemistry of Clermont-Ferrand, which offers to industries a wide range of services in the field of experimental thermodynamics, with an expertise in calorimetry. The objective of CALNESIS is to assist its clients in their experimental procedures according to their needs of physicochemical properties. For that, CALNESIS implements the equipment and the expertise to offer services of measurements, studies, developments and trainings. The domain of speciality of CALNESIS is the calorimetry. Its skills include particularly the development of technics or innovative protocols answering specific problems (corrosive or toxic character of the fluids, high-temperatures and pressures, viscous fluids, etc.). CALNESIS leans for it on its partnership favored with the Institute of Chemistry of Clermont-Ferrand and its expertise in the implementation of innovative approaches in calorimetry. To realize these services, the CALNESIS team has equipments of research which allow to measure numerous physico-chemical important properties for industrial applications, and which remain often inaccessible with commercial devices. The used devices, as well as their environments, were designed to widen the ranges of conditions in which they are usable. The CALNESIS team consists of doctors specialized in physical chemistry stemming from the Institute of Chemistry of Clermont-Ferrand. Their formations and their various experiences in the industry allowed them to develop the theoretical and technical skills essential to their company. This team collaborates in a way favored with the various research teams of the institute to propose to customers experimental solutions always more innovative.