Lockheed Martin's operating units are organized into broad business areas.

Aeronautics, with approximately $23.7 billion in 2019 sales which includes tactical aircraft, airlift, and aeronautical research and development lines of business.

Missiles and Fire Control, with approximately $10.1 billion in 2019 sales that includes the Terminal High Altitude Area Defense System and PAC-3 Missiles as some of its high-profile programs.

Rotary and Mission Systems, with approximately $15.1 billion in 2019 sales, which includes Sikorsky military and commercial helicopters, naval systems, platform integration, and simulation and training lines of business.

Space, with approximately $10.9 billion in 2019 sales which includes space launch, commercial satellites, government satellites, and strategic missiles lines of business.