In 1986, Marvin White, former CEO of
Columbia Gas Distribution Companies, helped found Ohio's 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. 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. In 2010, IGS moved into its current headquarters in Dublin, Ohio. The IGS Energy building was awarded LEED® Platinum certification, the highest of the four LEED certification ratings, the first commercial office building in central Ohio to meet the LEED Platinum standard. expanding solar energy offerings, compressed natural gas filling stations and distributed generation. In July 2022, IGS acquired
Dominion Energy Solutions. ==Natural Gas and Electric Residential Choice Programs==