 The companies operating in San Giorgio su Legnano in this historical context were mainly textiles and mechanics.The "sangiorgese" industries reached the height of development in the 1950s and 1960s, after which there was a period of constant involution.This crisis, which led to the partial deindustrialization of San Giorgio su Legnano, continued in the following decades compromising the industrial fabric, employment and, more generally, the economic system of the municipality.