In 1998, Rosset founded Chronowax, an innovative distribution and production company based in Paris. Chronowax started as a key actor for the growing French rap scene. The company's roaster will later represent more than 300 labels such as SubPop, Def Jam, Secretly Canadian and Ed Banger and sold more than 30 million records between 1998 and 2005.
In 2000, Chronowax got acquired by Richard Branson V2 Music Group.
from 2003 to 2005, Rosset played a pivotal role at V2 Music Group as an A&R and general manager. He signed and developed early careers of bands like TTC, The Knife, BLoc Party, Chromeo and Kourtrajmé.
In 2010, Rosset co-founded Official.fm, an online music hosting and publishing platform including developing tools for copyright owners, media publishers, music professionals. artists such as Wiz Khalifa, Diplo, redbull, Universal or Sony. Official.fm got acquired by private investors in 2011. Prior to Official.fm, Rosset also co-founded with Jean-François Groff, Fairtilizer, an audio publishing service.
Since 2011, Rosset is an active advisory board member and/or investor of innovative internet companies such as Shuffler.fm, Ubicmedia, and had been consulting for brands like Vivendi, LVMH, Warner, Nike Adidas, Vans ...
