Xenoblis Xenoblis was created in 1987 by Pr Andre Guillouzo, INSERM and now Head of the Toxicology laboratory at the Faculty of Pharmacy in Rennes. As soon as in the 80’s, André and Christiane Guillouzo were recognized for their expertise in the hepatocyte isolation and use for research. This expertise attracted a lot of interest from the drug industry and Xenoblis was funded to perform the contract works. Today, in its own premices of 800 m2 (8 700 ft²) located in St Gregoire, Xenoblis offers services in the drug development domain, operating as a GLP compliant CRO. Xenoblis has grown discrete but tenacious while keeping its focus on good science and technology and widening its expertise into the in silico techniques.