Rumblefish Inc. is a music licensing company specializing in all forms of synchronization licensing with a focus on 'micro-licensing' and online network monetization such as with YouTube's Content ID.
[2][3] In late 2011 Rumblefish entered into a partnership with CD Baby to license the music from CD Baby's independent artists for movies, TV shows, ads, video games, apps, and YouTube.
[4][5] In early 2013 Rumblefish acquired Catalogik, a music rights administration software as a service (SaaS).
[6] Rumblefish has generated controversy by sending copyright takedown notices to YouTube alleging copyright violations in videos' soundtracks, even when the user has written rights to the usage of a particular song or recording,[7][8][9] or when users are musicians posting their own videos of songs they wrote and performed themselves and to which they own all copyright.
[17][18][19] In 2015, Rumblefish falsely filed a copyright claim on the public-domain song America the Beautiful, as performed by the United States Navy Band (whose performances are all likewise public-domain).