This document summarizes the top 100 language service providers in 2012 based on reported revenue data from Common Sense Advisory. Mission Essential Personnel was the largest provider with over $725 million in revenue. Overall, most large providers saw significant revenue growth in 2011. Common Sense Advisory estimated the total size of the global language services market to be $33.523 billion in 2012, growing at an annual rate of 12.17%. Europe was the largest regional market, followed by North America and Asia.