| Prof. Dr | Akiko | Matsumoto | Saga University | Japan | Medicine and Health Sciences | Public Health | Best Researcher Award | environmentalscientists.org |
| Dr | Baker | Matovu | Amrita Vishwa Vidyapeetham | India | Environmental Science | Blue Economy and Empowerment of vulnerable coastal communities | Best Researcher Award | environmentalscientists.org |
| Dr | ANISH | MASKEY | New York Medical College | United States | Biology and Life Sciences | Pathology, Microbiology & Immunology | Best Researcher Award | environmentalscientists.org |
| Dr | Federico | Masís Meléndez | Instituto Tecnológico de Costa Rica | Costa Rica | Agricultural and Biological Sciences | Calibration of sensors | Best Paper Award | environmentalscientists.org |
| Assoc. Prof. Dr | Giovanni | Masala | Università di Cagliari | Italy | Economics, Econometrics and Finance | Energy economics | Best Scholar Award | environmentalscientists.org |
| Dr | Nkabeng | Maruping-Mzileni | South African National Parks | South Africa | Ecology and Conservation | Conservation Management | Women Researcher Award | environmentalscientists.org |
| Mr | Wagner | Martins dos Santos | Universidade Federal Rural de Pernambuco | Brazil | Agricultural and Biological Sciences | Agricultural engineering | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | NEUDSON JOHNSON | MARTINHO | FACULDADE DE MEDICINA / UNIVERSIDADE FEEDRAL DE MATO GROSSO - UFMT / BRASIL | Brazil | Others | SAÚDE / EDUCAÇÃO EM SAÚDE | Research Excellence Award | environmentalscientists.org |
| Dr | Alejandro | Martinez-Palacios | Instituto de Investigaciones Agropecuarias y Forestales/Universidad Michoacana de San Nicolas de Hidalgo | Mexico | Agricultural and Biological Sciences | Fisiologia de Semillas | Visionary Research Impact Award | environmentalscientists.org |
| Prof | Daniel Claudio | Martínez-Carrera | Colegio de Postgraduados, Campus Puebla, Centro de Biotecnología de Hongos Comestibles, Funcionales y Medicinales (CB-HCFM) | Mexico | Agricultural and Biological Sciences | Biotecnología de Hongos Comestibles, Funcionales y Medicinales | Best Researcher Award | environmentalscientists.org |
| Mrs | Livia | Marques Faustino | Clariant | Brazil | Environmental and Sustainable Materials | Mineral Processing | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Renata | Marks-Bielska | University of Warmia and Mazury in Olsztyn, Poland | Poland | Economics, Econometrics and Finance | land use policy, bioenergy, logal and regional development, entrepreneurship | Best Scholar Award | environmentalscientists.org |
| Assist. Prof. Dr | Andrea | Marino | University of Catania | Italy | Medicine and Health Sciences | Infectious Diseases | Best Researcher Award | environmentalscientists.org |
| Mr | Dimitrios | Marinis | Univeristy of Patras | Greece | Chemistry and Materials Science | Recycling/Sustainability/Circular economy/Composites | Young Scientist Award | environmentalscientists.org |
| Assist. Prof. Dr | Nilesh | Manwar | Institute of Physical Chemistry of the Polish Academy of Sciences | Poland | Environmental and Sustainable Materials | Chemistry | Best Researcher Award | environmentalscientists.org |
| Ms | Sanyogita | Manu | The University of British Columbia | Canada | Environmental Science | Low-cost indoor environmental quality monitoring | Best Researcher Award | environmentalscientists.org |
| Ms | Stefania Marieva | Manolaki | University of Crete, Biology Department | Greece | Oceanography and Marine Biology | Microplastics and Remote Sensing | Young Scientist Award | environmentalscientists.org |
| Dr | Mario | Mangia | University of Padua | Italy | Medicine and Health Sciences | Cardiology | Best Researcher Award | environmentalscientists.org |
| Dr | Titas | Mandal | University of Potsdam | Germany | Biochemistry, Genetics and Molecular Biology | Virology | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Athanasios G. | Mamalis | Project Center for Nanotechnology and Anvanced Engineering (PC-NAE) | Greece | Advanced Materials Engineering | Advanced Manufacturing of Advanced Materials from Macro- to Nanoscale | Distinguished Scientist Award | environmentalscientists.org |