Founded in 2009, STRASS (Syndicat du travail sexuel, sex work trade union) defends the interests of sex workers against repression, exploitation, and criminalisation in France, and it aims to build a collective movement within the unionist tradition. It includes more than 500 sex workers as its members, and has shared information with thousands of sex workers since its start. Its funding comes from membership fees as well as small donations and grants from Mama Cash and Red Umbrella Fund.