40°00′50″N 75°09′57″W / 40.01389°N 75.16583°W
Midvale Steel was a succession of steel-making corporations whose flagship plant was the Midvale Steel Works in Nicetown, Philadelphia, Pennsylvania. The mill operated from 1867 until 1976.
In the 1880s, Frederick Winslow Taylor rose through the ranks at Midvale, from lathe operator, to gang boss, to engineer, to chief engineer of the works. During this time he developed the core of his philosophy of scientific management.