Finding copyright holders is a simple process thanks to the Public Copyright Catalog. This online catalog contains all of the copyright information registered with the U.S. Government from 1978 on. Any person may search the records for music, books, movies or any other copyrighted material. Once they find the proper item, then the full contents of the copyright submission are available, including the owner of the copyright.
Browse online to the Public Copyright Catalog.
Choose the criteria you want to use to find the copyright information. General searches, such as names, will yield several results. More specific information, such as the copyright number, will yield better results.
Search through the listings for the copyright you are looking for and click on its link.
Scroll down through the available information to 'Copyright Claimant' for the name of the person who owns the copyright. Some entries will also have a section called "Names." These are people who are important to the copyright for some reason, often former or future holders or representatives for the company or group that holds the copyright.