Lionel Sinaï-Sinelnikoff is a seasoned entrepreneur, executive, and investor with over 20 years of experience driving value creation in aerospace and sustainable energy. Based in Abu Dhabi, he fosters green technologies in the Gulf. As Managing Partner of ADIV, he leads investment strategy for dual-use and deep tech startups, including hydrogen ventures. Founder of ASCENT, he scaled Asia's pioneering air mobility platform, catalyzing the entry of electric aircraft. He held leadership roles at Airbus Helicopters across Asia-Pacific and Latin America. An Entrepreneur in Residence at INSEAD and Adjunct Associate Professor at NYU Stern Abu Dhabi, he mentors founders and teaches innovation and sustainability. His strategic advisory role at Beyond Aero supports building the first electric business aircraft designed for hydrogen propulsion, leading Middle East fundraising, partnerships, and market initiatives aligned with regional decarbonization goals.