A publishing administrator is any entity, professional or music publisher who, through an agreement with the copyright owner, gains control of the composition while allowing the writer to retain ownership of the compositions copyright. The administrator's main service to the writer is to collect royalties, for a percentage of the revenue generated by the composition. All major publishers and most independents handle administration for the catalogs they own and control internally. A standalone publishing administrator does not own their client’s copyrights. Generally, administrative agreements are exclusive.