Private company

IGS Energy

Logo: Interstate Gas Supply, Inc., CC BY-SA 3.0, via Wikimedia Commons3

American independent retail natural gas and electric supplier

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, Illinois and Massachusetts. The company was founded in 1989, and today employs more than 900 people across 18 states.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1989Founded1
IGS Energy (Dublin, Ohio) - headquarters
Photo: Nheyob, CC BY-SA 4.0, via Wikimedia Commons5

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, Illinois and Massachusetts. The company was founded in 1989, and today employs more than 900 people across 18 states.2

The story

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.

IGS continues to explore ways to bring energy to consumers in environmentally responsible ways. This includes offering green energy products, expanding solar energy offerings, compressed natural gas filling stations and distributed generation.

In July 2022, IGS acquired Dominion Energy Solutions.

From Wikipedia’s article on IGS Energy, shared under CC BY-SA 4.0.4

Timeline

  1. 1989Founded Founded1

Sources

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