Airbus SE is a holding and management company, which engages in the design, manufacture, and marketing of aerospace products, services, and solutions. The company is headquartered in Leiden, Zuid-Holland and currently employs 156,921 full-time employees. The company went IPO on 2000-07-10. The firm operates through three segments: Airbus, Airbus Helicopters and Airbus Defense and Space. The Airbus segment focuses on the development, manufacturing, marketing and sale of commercial jet aircraft and aircraft components, as well as on aircraft conversion and related services. The Airbus Helicopters segment specializes in the development, manufacturing, marketing and sale of civil and military helicopters, as well as on the provision of helicopter related services. The Airbus Defense and Space segment produces military combat aircraft and training aircraft, provides defense electronics and global security market solutions, and manufacturers and markets missiles.