| Amirmohammad | Behzadi | KTH Royal Institute of Technology | Sweden | Energy | Smart Energy System Design/Control/Optimization | worldtopscientists.com |
| Amirhossein | Baghestani | Shahid Beheshti University | Iran | Engineering | Transportation | worldtopscientists.com |
| Amir | Maharjan | University of Southern Queensland | Australia | Agricultural and Biological Sciences | Wildlife Conservation | worldtopscientists.com |
| Amin | Darabnoush Tehrani | The University of Texas at Arlington | United States | Engineering | Civil Engineering / Buried Infrastructure Rehabilitation | worldtopscientists.com |
| Amgalan | Bor | National University of Mongolia | Mongolia | Materials Science | Powder technology | worldtopscientists.com |
| Amena | Darwish | University of Skovde | Sweden | Engineering | Applications of Laser Sensors for Precision Measurements | worldtopscientists.com |
| Ambar | Shaikh | University of York | United Kingdom | Chemistry | Mass Spectrometry | worldtopscientists.com |
| Amani Jackson | Uisso | Tanzania Forestry Research Institute | Tanzania | Other | Forest and natural resources sciences | worldtopscientists.com |
| Amanda | Femano | Air Force Institute of Technology Graduate School of Engineering and Management Department of Operational Sciences | United States | Business, Management and Accounting | Supply Chain Resilience | worldtopscientists.com |
| Amal | Balila | Samer Engineering Consultancy Group | Oman | Engineering | Bio-based Building Materials | worldtopscientists.com |
| Amaechi | Azi | Universiti Sains Malaysia | Nigeria | Environmental Science | Atmospheric Remote sensing | worldtopscientists.com |
| Aly Mousaad | Aly | Louisiana State University | United States | Engineering | Civil and Environmental and Mechanical Engineering | worldtopscientists.com |
| Álvaro | Figueira | FCUP - Universidade do Porto | Portugal | Computer Science | Artificial Intelligence | worldtopscientists.com |
| Alireza | Asle Zaeem | Nuclear science and technology research institute (NSTRI) | Iran | Physics and Astronomy | Fusion engineering | worldtopscientists.com |
| Alina | Basnet | SUNY Upstate Medical University | United States | Medicine and Dentistry | Oncology | worldtopscientists.com |
| Alice | Di Donna | Université Grenoble Alpes | France | Engineering | Geotechnical engineering | worldtopscientists.com |
| Aliasghar | Shokri | Alzahra University | Iran | Physics and Astronomy | Solar cell | worldtopscientists.com |
| Ali | Taherifar | Yasouj university | Iran | Mathematics | Topology, algebra | worldtopscientists.com |
| Ali | Sadeghianjahromi | University of Warwick | United Kingdom | Engineering | Mechanical Engineering-thermal management | worldtopscientists.com |
| Ali | Sabir | Selcuk University | Turkey | Agricultural and Biological Sciences | Horticulture | worldtopscientists.com |