Burning Man is organized by the Burning Man Project, a non-profit organization that, in 2014, succeeded a for-profit limited liability company (Black Rock City, LLC) that was formed in 1997 to represent the event's organizers, and is now considered a subsidiary of the non-profit organization. In 2010, 51,515 people attended Burning Man. Attendance in 2011 was capped at 50,000 participants and the event sold out on July 24; the attendance rose to 70,000 in 2015. Smaller regional events inspired by the principles of Burning Man have been held internationally; some of these events are also officially endorsed by the Burning Man Project as regional branches of the event.