He is a Researcher at the UNESCO Chair on Green Innovation and Circular Economy of the National Technical University of Athens. 

Dr. Dr. Grigorios L. Kyriakopoulos (2 PhDs) serves as a Teaching and Research Associate at the School of Electrical and Computer Engineering, National Technical University of Athens (NTUA), Greece. He has also accumulated a more than 25-years teaching service at NTUA and 10-years teaching service at other University Schools, including: Hellenic Naval Academy (2 years), Merchant Marine Academy of Aspropyrgos, Greece (2 years), and School of Pedagogical and Technological Education of Athens (ASPAITE) (4 years). He holds a wide educational background, including 2 PhDs, in Low Carbon Economy (DUTH, Greece) and in Chemical Engineering (NTUA, Greece), Chemical Engineering (MEng, MSc in Technical-Economic Systems, PhD, PostDoc), Environment (BSc, 2MSc in Environmental Design of: a) large infrastructure works and b) cities/buildings, PhD), Business Administration (BA and MA), Hellenic Civilization (BA and MA), Energy (MSc), Education (PGCE), Psychology (CertHE, HND, PGCert), Human Resource Management (CertHE). Dr. Dr. Kyriakopoulos (co)authored more than 100 papers in 50 journals, 20 invited book chapters, and 30 papers at conferences, all having received more than 4000 citations. He is the reviewer of more than 5000 manuscripts in 380 journals. His research interests are chemical engineering, environmental engineering, business and management, development economics, circular economy, environmental systems and remediation, energy, renewable energy sources, analytical techniques, behavioural ecology. He is recorded in the top 2% of scientists in the world released by Stanford University at the years 2020, 2021, 2022, 2023, as well for the whole career periods 1996-2022 και 1996-2023