Haythem Riahi

Dr. Haythem Riahi is a visionary leader in biotechnology and circular economy innovation. He holds a PhD in Biotechnology and has over 20 years of experience in the field. Dr. Riahi has dedicated his career to developing sustainable waste-to-value solutions that create both environmental and economic benefits.


As the founder of Circa Biotech, Dr. Riahi drives its mission to transform organic waste into valuable resources. His work is significantly contributing to advancing the UAE’s circular economy and net-zero strategy.


As a recognized advocate for sustainability, Dr. Riahi collaborates with government agencies, industry leaders, and investors to promote impact-driven innovation. He is a sought-after speaker at global forums, where he shares insights on biotechnology’s role in climate action, food security, and renewable energy.