Only a Hobo
Company that represents songwriters, and bringing them to Italy: site includes artists biographies, tour schedule, and contact information.

Onesti Entertainment
Produces over 400 independent shows per year. Offcies in Chicago, Illinois, USA.

One Louder Entertainment
Australian company, guiding the careers of Alex Lloyd, Amiel, George, Garageland and Pretty Violet Stain. Site includes news and schedule.

Oz Productions Istanbul
Represents a variety of international artists in different fields of arts. Organises festivals, events and media relations. Ottoman, Turkish musics, jazz, ethnic, folk, sacred music and fine arts by artists from different parts of the world. Offices in Istambul, Turkey.

Obey The Flame
A booking agency, artists management and promotion from Montreal, Canada.

One Nation Underground productions
Provides music and entertainment for weddings,corporate events and holiday parties. Located in San Francisco, California, USA.