Honeywell is a multinational conglomerate corporation that operates in four areas of business: aerospace, building automation, industrial automation, and energy and sustainability solutions (E SS). Honeywell is a Fortune 500 company, ranked 115th in 2023.

Honeywell Aerospace Technologies provides avionics, aircraft engines, flight management systems, and service solutions to manufacturers, airlines, airport operations, militaries, and space programs. It comprises Commercial Aviation, Defense & Space, and Business & General Aviation. 

Building Automation comprises Honeywell Building Solutions, Environmental and Energy Solutions, and Honeywell Security and Fire

Honeywell Performance Materials and Technologies comprises six business units: Honeywell UOP, Honeywell Process Solutions, Fluorine Products, Electronic Materials, Resins & Chemicals, and Specialty Materials. Products include process technology for oil and gas processing, fuels, films and additives, special chemicals, electronic materials, and renewable transport fuels