Sylvie is part of Rock City Agencia, a company that develops solutions for communication and events focusing on music and arts. Their goal is to facilitate any type of cultural and artistic production and communicate it in a simple and effective way. They do live show productions (national and international), work as consultants for record labels and publishing, and work as management and bookings.

Rock City Argencia promote national and international circulation of artists (with touring and events) and specialize in developing artists to domestic and foreign markets, promoting cultural exchanges to diminish differences and contribute more to the scene.