Music publishing companies are businesses that manage the rights to songs and compositions. They help songwriters and composers earn money by licensing their music for various uses, such as in films, commercials, and streaming services. These companies ensure that artists receive royalties whenever their music is played or reproduced. In addition to managing rights, music publishers also provide support to songwriters by offering creative services, such as connecting them with artists or producers. They play a crucial role in promoting new music and helping songwriters navigate the complex world of copyright and licensing.