Korea's top three management agencies -- SM Entertainment, YG Entertainment and JYP Entertainment -- have doubled their revenues over the past three years.
According to data compiled by the Financial Supervisory Service, SM Entertainment, which manages Girls' Generation and Super Junior, recorded sales of US$156 million last year, up 90 percent from 2010.
YG Entertainment, boasting groups such as 2NE1 and Big Bang, saw its revenue surge a whopping 136 percent during the three-year period.
JYP Entertainment, which represents Miss A and 2PM, saw its revenue rise 75 percent to $17 million last year, up from about $10 million in 2010.
The surge has been attributed to the growing popularity of local pop groups across the world as well as strong record and merchandise sales.