Supersonic aircraft startup Exosonic is winding down operations entirely in November 2024, resulting in the layoff of its entire team. The company, founded in 2019 and part of Y Combinator's Winter 2020 cohort, was developing quiet supersonic airliners and drones for the Department of Defense. Despite raising over $4.5 million and achieving milestones like the test flight of its EX-3M Trident UAV, Exosonic stated it could not secure the necessary customer traction and funding to sustain its cash needs and continue advancements. The shutdown marks the end of a five-year effort to revive commercial supersonic travel.
