John Marcantonio is Technology Director at CCD Partners and a chemicals and process industry specialist with over 35 years’ experience in engineering, technology development, and consultancy.



He has held senior roles at KBR Downstream, BRG/IAL Consultants, Tecnon OrbiChem, Arkchem, and Jacobs Consultancy, leading multidisciplinary teams across process evaluation, project development, and market strategy. John’s expertise spans sustainability, circular polymers, rare earths, and low-carbon industrial technologies.