Complex sentence: Formerly, the company also used the Bell Tower Press, Orion Books (unconnected to Orion Publishing in the United Kingdom), and related imprints, although these have now either been discontinued or transferred to other Random House units.
Split into simpler sentences: Formerly, the company also used the Bell Tower Press, Orion Books (unconnected to Orion Publishing in the United Kingdom), and related imprints. However, these have now either been discontinued or transferred to other Random House units.