Williams Street Productions, LLC, operating under the name Williams Street, (previously known as Ghost Planet Industries after Space Ghost's home base studio from 1994 to 1999) is a division of Cartoon Network, which is owned by Turner Broadcasting System an operational unit of Time Warner. The studio mainly produces animation/animated series, which air on Cartoon Network as a separate network for ratings purposes. Adult Swim is produced and programmed by Williams Street. Keith Crofford and Mike Lazzo oversee operations for the studio building.
The name originates from the location of the studios (which double as the home office for Adult Swim) on Williams Street in Atlanta, Georgia, in proximity to the current offices of Ted Turner-founded TBS, CNN, and the Cartoon Network itself. Source: Wikipedia.org