Life after the mill | TribLIVE
About Allegheny Ludlum . Allegheny Ludlum is the largest employer in the Alle-Kiski Valley. It has about 2,190 hourly employees at five plants in the Alle-Kiski Valley, according to figures provided in February 2004 by leaders of the four unions that represent workers in local plants. Companywide, Ludlum has about 3,200 workers at about a …