Klearia is a spin-off born at the Laboratory of Photonic and Nanostructures (LPN ; CNRS) from the discovery of an innovative technology for bonding glass microfluidic chips. Klearia overcomes a major technological limitation by bonding at a low temperature between 100°C and 300°C and succeed in integrating a wider range of materials for embedded technologies on devices. Chemistry, biology, health, environment and agrofood are sectors to be very interested in the development of microfluidic devices, like sensors allowing electrochemical or optical detection. Klearia develops a range of products for research: LabInGlass®. Besides microreactors for flow chemistry and electrochemical sensors for analytical chemistry, Klearia also proposes a custom-made service of designing and developing. Klearia assiduously works to create valuable new products and processes. With expertise, Klearia aims to answer sustainable development problematics of responsible chemistry and conservation of natural resources. Klearia, as a spin-off of the Laboratory of Photonic and Nanostructures (LPN ; CNRS), work with the technological resources of the LPN: