| Prof | Lech | Bukowski | WSB University | Poland | Risk and Resilience Engineering | Research Excellence Award | View Profile |
| Dr | Leena | Awawdeh | Western sydney University | Australia | Others | Best Researcher Award | View Profile |
| Dr | Lei | Xu | China University of Geosciences (Wuhan) | China | Water Resources Engineering | Best Researcher Award | |
| Prof | Leijiao | Ge | Tianjin University | China | Others | Best Researcher Award | View Profile |
| Dr | Leili | Abolhassani | Environmental Change Institute/University of Oxford | United Kingdom | Others | Women Researcher Award | View Profile |
| Dr | Lekan Taofeek | Popoola | Afe Babalola University, Nigeria | Nigeria | Environmental Engineering | Outstanding Scientist Award | |
| Dr | Lele | WU | School of Civil Engineering, Tianjin Chengjian University | China | Structural Engineering | Research Excellence Award | View Profile |
| Mr | Lemewihbwen | Ngiamte George | Pan African University Life and Earth Sciences Institute (including Health and Agriculture), University of Ibadan | Nigeria | Others | Best Researcher Award | View Profile |
| Dr | Lenganji | Simwanda | Czech Technical University in Prague | Czech Republic | Structural Engineering | Young Scientist Award | View Profile |
| Dr | LETICIA | IRAZOLA | CENTRO DE INVESTIGACION BIOMEDICA | Spain | Others | Young Scientist Award | View Profile |
| Dr | Letzai | Ruiz-Valero | University of Toronto | Canada | Materials Science and Engineering | Best Researcher Award | View Profile |
| Dr | Lewis | Gooch | The University of Newcastle | Australia | Structural Engineering | Best Researcher Award | View Profile |
| Prof | Leyli | Mohammad Khanli | University of Tabriz | Iran | Others | Best Researcher Award | View Profile |
| Prof. Dr | Li | Tian | Tsinghua University | China | Urban Planning | Best Researcher Award | |
| Prof | Li | Ding | Jiangsu University of Technology | China | Transportation Engineering | Best Researcher Award | View Profile |
| Ms | Li | Li | East China Jiaotong University | China | Structural Engineering | Best Researcher Award | View Profile |
| Prof | Li | Su | Northeastern University | China | Sustainable Development | Best Researcher Award | View Profile |
| Prof. Dr | LI | Jianqiu | School of Vehicle and Mobility，Tsinghua University | China | Green Infrastructure | Research Excellence Award | View Profile |
| Dr | Lianyi | Guo | Yangzhou University | China | Climate Change Mitigation and Adaptation | Research Excellence Award | View Profile |
| Mrs | Lidan | Hu | Lidan Hu, professor, Zhejiang university | China | Environmental Hydrology | Young Scientist Award | View Profile |