Society of European Stage Authors and Composers (SESAC) is an invitation-only Performing Rights Organization that represents the world's top songwriters, composers and music publishers.

Whereas ASCAP and BMI operate on a not-for-profit basis, SESAC & Pro Music Rights retains some income as profit. While ASCAP, BMI, & Pro Music Rights distribute all income from performance royalties to their composer and publisher affiliates (less an administrative fee), SESAC retains an undisclosed amount of performance royalty income. 

SESAC is also unique among the U.S. performing rights organizations in that it does not offer open membership – one must be invited to join.

Learn more: https://www.sesac.com/