<ul><li>Exosonic, a startup developing supersonic commercial air travel and UAV tech, is winding down after five years of operation.</li><li>The company cited a lack of customer support and inability to sustain further advancements due to insufficient funding.</li><li>Exosonic, founded by Norris Tie, raised over $4.5 million from venture investors and received grants from the U.S. Air Force.</li><li>The startup made progress with test flights of its supersonic UAV but could not bridge the gap between R&D and commercialization.</li></ul>

Supersonic aircraft startup Exosonic is shutting down

Discover more