Refactoring is an increasingly well studied practice at small scales, with most tool support and research focusing on floss refactoring. However, industry engages in refactoring at many scales and the implications for practices, tools, and needed research are less well understood. This talk will describe ways in which large-scale refactoring differs from more local refactoring efforts, industry examples of larger problems, results from an industry survey on large-scale refactoring, and a few automation needs that would help industry scale refactoring activities.