Orellis

Orelis (Orelis Environnement) is a specialized industrial technology company that designs and manufactures advanced membrane filtration systems for the life sciences, pharmaceutical, and biotechnology sectors. A subsidiary of the Alsys Group (part of Altheora), the company provides high-performance separation solutions, including its signature Kleansep ceramic membranes and various polymer-based filtration technologies. Orelis supports biomanufacturing processes such as biomolecule recovery, purification, and downstream processing (DSP) for antibodies, recombinant proteins, and cell therapies. Beyond healthcare, the company serves the agri-food, chemical, and environmental industries with tailored filtration skids and engineering services. Headquartered in France, Orelis is a key member of the MabDesign network, contributing to the optimization of bioproduction workflows globally.