Stefan Höger

Aquatic Ecotoxicology Expert and CEO at IES

Speaker

Stefan Höger studied biology at the University of Constance, Germany, with a focus on developmental neurobiology, immunology, behaviour biology and ecotoxicology. Stefan has built extensive expertise in the contract research organisation (CRO) sector with a broad scientific portfolio including ecotoxicology, toxicology, biodegradation, analytical chemistry, and regulatory sciences. Over the course of his career, Stefan has held a range of scientific and leadership roles, including study director, team coordinator, team leader, department head, and GLP test facility manager, across both academia and industry. In 2014, Stefan joined IES Ltd. as Chief Operating Officer, and in September 2017 he was appointed Chief Executive Officer. Since then, he has continued to contribute directly as a study director, particularly for higher-tier ecotoxicological studies, where his expertise strengthens complex study design, regulatory compliance, and scientific interpretation.