| Dr | Yanfang | Li | Hangzhou Dianzi University | China | Nanotechnology | Biomedical Engineering | Research Excellence Award | environmentalscientists.org |
| Assist. Prof. Dr | Anita | Leovac Maćerak | University of Novi Sad, Faculty of Sciences | Serbia | Environmental Science | Wastewater treatment, sludge valorization, circular economy frame | Research Excellence Award | environmentalscientists.org |
| Prof. Dr | Jos | Lelieveld | Max Planck Institute for Chemistry | Germany | Environmental Science | Air quality, Climate, Health | Distinguished Scientist Award | environmentalscientists.org |
| Assist. Prof. Dr | Seung-Bo | Lee | Keimyung University School of Medicine | South Korea | Computer Science and Artificial Intelligence | Medical Informatics | Best Researcher Award | environmentalscientists.org |
| Dr | Kyung Rok | Lee | Korea Institute of Science and Technology | South Korea | Chemical Engineering | Heterogeneous catalysts | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Juneseok | Lee | Manhattan University | United States | Engineering | ENVIRONMENTAL/WATER ENGINEERING | Best Researcher Award | environmentalscientists.org |
| Prof | Hsin-Ying | Lee | National Cheng Kung University | Taiwan | Nanotechnology | gas sensors | Best Researcher Award | environmentalscientists.org |
| Dr | Sang-Hoon | Lee | GreenCross I-MED Gangnam Medical Center | South Korea | Health Professions | Medicine | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Janet | Leandro Marmolejo | Colegio de Postgraduados | Mexico | Immunology and Microbiology | Microbiología bacteriana | Research Excellence Award | environmentalscientists.org |
| Assist. Prof. Dr | Ngoc Cua | Le | Walailak University | Thailand | Immunology and Microbiology | Child Health | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Pruteanu | Lavinia-Lorena | UTCN | Romania | Biochemistry, Genetics and Molecular Biology | Health , Natural therapeutics | Best Researcher Award | environmentalscientists.org |
| Dr | Helene | LAUDE | Institut Pasteur | France | Biology and Life Sciences | Malnutrition | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Marzena | Laskowska | Medical University of Lublin, Poland | Poland | Decision Sciences | perinatology, medicine , obstetrics and gynecology | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Jacek, Leszek | Łapiński | The John Paul II Catholic University of Lublin | Poland | Environmental Science | Human Ecology, Philosophy of Nature | Best Researcher Award | environmentalscientists.org |
| Dr | Csaba | Lantos | Cereal Research Non-Profit Ltd. | Hungary | Agricultural and Biological Sciences | Biotechnology and cereal breeding | Best Researcher Award | environmentalscientists.org |
| Mr | Mumbere | Lango | Research Center for Environmental Planning | Congo, Democratic Republic of the | Environmental Science | Biodiversity conservation and earth observation | Excellence in Research | environmentalscientists.org |
| Prof. Dr | Elena Simina | Lakatos | Institute for Research in Circular Economy and Environment "Ernest Lupan" | Romania | Environmental Science | circular economy | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Panagiotis | Lagouvardos | National & Kapodistrian University of Athens-Dental School | Greece | Dentistry | Operative Dentistry | Research Excellence Distinction Award | environmentalscientists.org |
| Prof. Dr | Giuseppe | La Ferla | Escuela Técnica Superior de Arquitectura Universidad Politécnica de Madrid | Spain | Engineering | Construction building technology | Best Researcher Award | environmentalscientists.org |
| Dr | Paweł | Kwaśnicki | Catholic University of Lublin | Poland | Renewable Energy Technologies | photovoltaic | Best Researcher Award | environmentalscientists.org |