Paul Thomas has a PhD in aquatic ecotoxicology and more than 20 years' experience with industrial chemicals, agrochemicals and biocides gained initially at CIT (now Charles River) where he set up the ecotoxicology service and was study director for 4 years, ATOFINA (now ARKEMA) where he practiced ecotoxicology and Risk Assessment for existing substances and then AkzoNobel (now Nouryon) where he was head of department, head of the ecotoxicology GLP and research laboratories and organiser of REACH services for the company for over 6 years. He joined CEHTRA in 2008 as director of CEHTRA Lyon specialising in REACH-related services and is manager of the CEHTRA ecotoxicology team and contributed strongly to numerous successful registrations out of the >600 substances that CEHTRA registered since 2010 and has been working in the area of predictive ecotoxicology since this time. In 2014, while retaining all his roles in CEHTRA, Paul founded KREATiS and was nominated CEO. KREATiS is a start-up company specialising in the creation of high accuracy QSARs to replace experimentation for REACH and other regulations. In 2020 he bought the company together with a human health expert, Dr Carole Charmeau, and they have worked hard with the KREATiS team to bring the company to new heights, adding multiple models to their iSafeRat® model suite, and embracing new technologies such as 3D docking models for studying protein-ligand interactions.