American Public Media, a private, nonprofit 501(c)(3) corporation, is the largest owner and operator of public radio stations in the United States and a major source of programming for them. It is the largest producer and distributor of classical music programming in the country.
Starting as a single college station in 1974, it grew to regional networking and programming, and became American Public Media in 2004. Over 800 public and commercial stations carry its programming.
While it receives some funds from the Corporation for Public Broadcasting, as the second largest public radio organization after National Public Radio, it is not dependent on government funds.