HighBridge Audio is an RBmedia company. RBmedia is owned by KKR, a leading global investment firm, and employs nearly 500 peo ... ple. HighBridge is a leading publisher of spoken-word audio. Started by Minnesota Public Radio to produce and distribute recordings of Garrison Keillor’s A Prairie Home Companion, HighBridge was incorporated in the early 1980s. HighBridge's catalog has expanded over the years to include New York Times bestselling fiction and nonfiction, Oprah’s Book Club® titles, National Public Radio compilations, and more. read more