IGS Energy, also known as Interstate Gas Supply, Inc., is an independent retail natural gas and electric supplier based in Dublin, Ohio, United States. It serves more than 1,000,000 residential, commercial and industrial customers in the states of Ohio, Michigan, Kentucky, New York, Pennsylvania, Indiana, Virginia, Maryland, Texas, California and Illinois.[non-primary source needed] The company was founded in 1989, and today employs more than 400 people at its headquarters in Dublin, Ohio. In 1986, Marvin White, former CEO of Columbia Gas Distribution Companies, helped found Ohios choice program. Three years later, in 1989, he founded Interstate Gas Supply, Inc. (IGS Energy), in Dublin, Ohio, with his son, Scott. The privately held company began as a commercial and industrial wholesale supplier of Ohio-produced natural gas. By 1992, IGS Energy expanded its focus to include natural gas retail marketing directly to end-users. IGS Energy has an A+ rating with the BBB. Following the deregulation of residential natural gas service in 1997, IGS Energy began serving residential customers of Columbia Gas of Ohio. IGS Energy further expanded into the residential and small commercial arenas in 1999. Today, as a natural gas provider, the company offers gas in Ohio, Michigan, Kentucky, New York, California, Pennsylvania, Indiana, Virginia and Illinois and has plans to expand further.. In 2011, IGS acquired gas and electricity supplier Accent Energy, based in Dublin, Ohio, and its subsidiary Dynowatt. At the same year IGS Energy began providing electric service to customers in Chicago and Pennsylvania.