Gregory Constantine
Entrepreneur, Inventor & Product Designer
Life & Work
Gregory Constantine is an Australian entrepreneur and industrial technologist, born to a Lebanese mother and Greek father. He graduated from the University of Sydney and completed executive education at Harvard Business School.
Gregory is the Co-Founder & Chief Executive Officer of AIRCO (formerly AIR COMPANY), a New York-based carbon technology, defense, and engineering company building scalable systems that convert carbon dioxide (CO₂) into high-value fuels and industrial products. The company operates at the intersection of climate, national security, and advanced manufacturing—with applications spanning sustainable aviation, synthetic fuels, and decentralized energy systems.
Under Gregory’s leadership, AIRCO has commercialized multiple carbon-derived products, including AIRMADE™ Sustainable Aviation Fuel (SAF), synthetic ethanol and methanol, and modular containerized fuel systems designed for both commercial and defense deployment. In 2022, AIRCO powered the world’s first test flight using jet fuel made directly from CO₂. The company has since advanced commercial offtake agreements with global airlines and strategic partners while supporting U.S. government and defense programs focused on energy resilience and operational autonomy.
To date, Gregory has raised over $110 million in venture capital and been awarded ~$100 million in government contracts and strategic financing, positioning AIRCO for large-scale fuel production and infrastructure deployment. The company’s work has earned global recognition, including awards from TIME (Best Inventions), NASA (CO₂ Conversion Challenge), Fast Company (World Changing Ideas), and the XPRIZE Foundation.
Before founding AIRCO, Gregory worked at Diageo, one of the world’s largest consumer goods companies, and was named to Forbes’ 30 Under 30 in 2017.
Beyond AIRCO, Gregory is building a broader portfolio of frontier technology ventures focused on human performance, autonomy, and industrial intelligence—unified by a single thesis: energy, infrastructure, and biology will define the next century of human capability.
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