Honeywell International Inc. engages in the aerospace technologies, industrial automation, building automation, and energy and sustainability solutions businesses in the United States, Europe, and internationally. The Aerospace Technologies segment offers auxiliary power units, propulsion engines, integrated avionics, connectivity services, electric power systems, management and technical services, environmental control systems, engine controls, flight safety products, communications products, navigation hardware, data and software applications, radar and surveillance systems, aircraft lighting, advanced systems and instruments, satellite and space components, and aircraft wheels and brakes. This segment also provides thermal systems; spare parts; and repair, overhaul, and maintenance services. The Industrial Automation segment provides automation control and instrumentation products and services; smart energy products; sensing technologies, including custom-engineered sensors and related services; gas detection technologies and personal protective equipment; and system design automation equipment, as well as software and analytics for manufacturing, distribution, and fulfillment operations. The Building Automation segment provides software applications for building control and optimization; sensors, switches, control systems, and instruments for energy management; access control; video surveillance; fire products; and installation, maintenance, and system upgrade services. The Energy and Sustainability Solutions segment, through its UOP business, delivers licensed process technology, equipment, engineering, catalysts, adsorbents, and services for refining, petrochemicals, low-carbon energy, gas and LNG, and industrial solutions, as well as connectivity, data integration, and software solutions. The company was formerly known as AlliedSignal, Inc. Honeywell International Inc. was founded in 1885 and is headquartered in Charlotte, North Carolina.