Thom studied for his MChem at the University of Edinburgh. He then moved to the University of Bath to complete his PhD under the supervision of Antoine Buchard. During his PhD, he studied the impact of stereochemistry on the properties of sugar-derived polymers. Alongside his PhD, Thom completed a short JSPS research fellowship at Nagoya University in Japan, working for Professor Masami Kamigaito. Thom is now researching the depolymerization of polycarbonates and polyesters.