Big Business or big business is a term use to describe large corporations, in either an individual or collective sense. The term first came into use in a symbolic sense subsequent to the American Civil War, particularly after 1880, in connection with the combination movement that began in American business at that time. Organizations that fall into the category of "big business" include ExxonMobil, Wal-Mart, Google, Microsoft, Citigroup and Arcelor Mittal.