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Keylany Hassine bridges cutting-edge technology and environmental stewardship. As founder and CEO of Istya, he developed an AI-powered platform that transforms indoor environments by improving air quality and optimising energy use. With a degree in entrepreneurship and business strategy, he is driven by a commitment to deliver measurable sustainability outcomes.
Under his leadership, Istya’s solutions have been deployed in landmark projects, from the Paris 2024 Olympic Village to public facilities in Aulnay-sous-Bois, achieving clear reductions in CO₂ emissions and energy consumption. In 2025, Istya was named one of Challenges’ '100 Start-ups to Invest In,' a testament to its rapid growth and real-world impact.