Daniel Marhely is a co-founder of Deezer. Jonathan Benassaya met him after coming back to France, and the two built the service together.
The earlier project, Blogmusik, was shut as illegal in 2007. The founders struck licensing deals, including one with SACEM, and relaunched it as Deezer.
In October 2008 Deezer raised $8.4 million. In October 2012 it raised $130 million from Access Industries.
Deezer listed on Euronext Paris on 5 July 2022. In 2025 it posted its first full-year net profit, €8.5 million.