Honeywell Aerospace Technologies is a leading manufacturer of aircraft engines, avionics, auxiliary power units, and other aviation products for commercial, defense, and space applications.[1][2][3] Headquartered in Phoenix, Arizona, it is a division of Honeywell International and generates approximately $15 billion in annual revenue, split evenly between commercial and defense contracts.[1][3] Its products are used on nearly every commercial aircraft and most satellites in orbit.[3][6]