| Dr | Soheila | Kookalani | Cambridge University | United Kingdom | Engineering | Architecture and civil engineering | Best Paper Award | bestpaperawards.com |
| Prof. Dr | Sofia | Stamou | Ionian University | Greece | Arts and Humanities | Heritage | Best Paper Award | bestpaperawards.com |
| Dr | Socrates | Herrera | Caucaseco Scientific Research Center | Colombia | Immunology and Microbiology | Malaria | Best Paper Award | |
| Assoc Prof Dr | Snežana | Filip | University of Novi Sad, Technical Faculty "Mihajlo Pupin", Zrenjanin | Serbia | Chemistry | Pharmaceutical Science | Best Researcher Award | |
| Dr | Smagul | Karazhanov | Smagul Karazhanov. Department for Solar Energy, Institute for Energy Technology | Norway | Materials Science | Renewable energy | Best Researcher Award | |
| Dr | Slyvia Manjeri | Aarakit | Makerere University Business School | Uganda | Energy | Energy economics and Enterpreneurship | Best Paper Award | bestpaperawards.com |
| Prof | Slawomir | Rybicki | Nicolaus Copernicus University in Torun | Poland | Mathematics | Mathematical Analysis/ Differential Equations | Best Researcher Award | bestpaperawards.com |
| Mr | Siyum Shewakena | Beshahwored | National Taiwan University of Science and Technology, Taiwan | Taiwan | Chemical Engineering | Membrane Science and Technology | Best Researcher Award | |
| Dr | Sivanesan | Subramanian | Anna University | India | Chemistry | Environmental Science | Most Reader's Article Award | |
| Dr | Siti Marsila | Mhd Ruslan | Universiti Malaysia Terengganu | Malaysia | Economics, Econometrics and Finance | Maritime Economics/ Energy Economics/ Investment | Most Reader's Article Award | |
| Prof Dr | Siriporn | Jungsuttiwong | Faculty of Science, Ubon Ratchathani University | Thailand | Chemistry | energy materials | Best Researcher Award | |
| Assoc. Prof. Dr | Sirikanjana | Thongmee | Kasetsart University | Thailand | Materials Science | Catalyst, Gas sensor, Graphene based | Best Researcher Award | bestpaperawards.com |
| Dr | Sina | Attar Roshan | Islamic Azad University of Ahvaz | Iran | Environmental Science | Forest ecology | Best Researcher Award | |
| Dr | Sin-Mei | Lim | National University of Singapore | Singapore | Engineering | sustainable soil stabilization technique, ground improvement techniques, laboratory characterisation of geomaterials (e.g. chemically treated sludge), in-situ field monitoring and instrumentation, laboratory-based dust assessment technique, sustainable pavement materials, and recyclability of waste plastic-modified asphalt concrete for the circular economy. | Best Researcher Award | |
| Mr | Simphiwe Gift | Nkuna | Tshwane University of Technology | South Africa | Energy | Waste to energy | Most Reader's Article Award | |
| Ms | Simone | Chapman | University of New Hampshire | United States | Social Sciences | Environmental Policy & Planning | Best Researcher Award | |
| Dr | Simona | Di Micco | University of Naples Parthenope | Italy | Engineering | Sistemi per L'energia e l'ambiente | Best Researcher Award | bestpaperawards.com |
| Dr | Simona | Sbranna | University of Cologne | Germany | Arts and Humanities | Phonetics | Best Researcher Award | bestpaperawards.com |
| Dr | Simona | Proietti | IRET CNR | Italy | Agricultural and Biological Sciences | fisiologia vegetale | Best Researcher Award | bestpaperawards.com |
| Prof | Simon | Sosvilla-Rivero | Complutense Institute for Economic Analysis | Spain | Economics, Econometrics and Finance | Applied Finance | Best Researcher Award | |