The Standard Oil Company moved into 30 Rockefeller Plaza in 1934. The New York Museum of Science and Industry moved to the bottom floors because other companies did not want to move there. Westinghouse Electric Corporation was on the 14th through 17th floors. The Rockefeller family also moved into a lot of the floors in the building. The family had an office called Room 5600 on the 56th floor. Room 5600 became bigger after World War II. The family went to another building in 2014.