Otis Elevator is the world’s most popular transportation company, primarily focusing on elevators, escalators and moving walkways. It is estimated that the equivalent of the world’s population travel in Otis elevators every nine days. Otis employ more than 64,000, with 2.5 million elevators and escalators in operation worldwide. They have installed elevators in some of the world’s most famous structures, including the Eiffel Tower, Empire State Building, the original World Trade Center and the Burj Khalifa.