IGS Energy
Corporate brand
UnclaimedA privately held U.S. energy supplier and energy-solutions provider offering natural gas, electricity, solar, efficiency, lighting, and related infrastructure services.
Last updated August 25, 2026
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Overview
IGS Energy is a privately held American energy company headquartered in Dublin, Ohio. Historically known as Interstate Gas Supply, Inc., it operates as an independent retail supplier of natural gas and electricity and has expanded into a broader portfolio of energy-related services. Its customer base includes residential, small-business, commercial, and industrial users. The company serves customers through competitive energy-choice programs and other retail arrangements in multiple U.S. states, including Ohio, Michigan, Kentucky, New York, Pennsylvania, Indiana, Virginia, Maryland, California, Illinois, and Massachusetts. Reference material describes the company as serving more than one million customers and employing more than 900 people across a broad multistate footprint, although the applicable dates for those figures are not specified. The company’s origins are connected to the development of customer-choice programs in Ohio. In 1986, Marvin White, who had previously led Columbia Gas distribution companies, helped establish Ohio’s choice-program framework. In 1989, he and his son Scott White founded Interstate Gas Supply in Dublin. The business initially concentrated on wholesale supply of Ohio-produced natural gas for commercial and industrial customers. In 1992, it began marketing natural gas directly to end users, and after residential natural-gas deregulation in Ohio in 1997, it entered the residential market serving Columbia Gas of Ohio customers. The company broadened its residential and small-commercial activities in 1999. IGS later diversified beyond gas supply. It entered residential commodity sales in 2009 and began providing electricity in Ohio in 2012, following earlier expansion into electric service in Chicago and Pennsylvania. In 2011, it acquired Dublin-based Accent Energy and its subsidiary Dynowatt, strengthening its position in electricity and retail energy markets. Its activities have also included compressed-natural-gas infrastructure, renewable-energy offerings, solar development, community solar, commercial LED lighting, and other distributed-energy services. In 2015, the company introduced solar services under the IGS Solar brand for homes, businesses, and communities. It subsequently expanded into community solar and residential rooftop solar in selected markets. Sustainability and lower-carbon energy have become recurring elements of the company’s positioning. IGS has marketed green electricity and carbon-neutral natural-gas options, while also developing solar projects, compressed-natural-gas stations, and distributed-generation offerings. Its Dublin headquarters, occupied from 2010, received LEED Platinum certification and was described as the first commercial office building in central Ohio to attain that rating. In July 2022, IGS acquired Dominion Energy Solutions, a transaction that expanded its customer and energy-services platform. The company remains privately held and active in U.S. retail energy and related solutions. Its present identity combines competitive commodity supply with energy-advisory, infrastructure, renewable, efficiency, and electrification-adjacent services rather than being limited to a conventional natural-gas retailer.
History
IGS Energy traces its origins to Ohio’s energy-choice movement. In 1986, Marvin White, a former chief executive of Columbia Gas distribution companies, helped establish Ohio’s customer-choice program. In 1989, White and his son Scott founded Interstate Gas Supply in Dublin, Ohio. The privately held company initially operated as a wholesale supplier of Ohio-produced natural gas for commercial and industrial users. IGS changed its market orientation in 1992 by beginning direct retail marketing of natural gas to end users. Ohio’s residential natural-gas deregulation in 1997 created an opportunity for the company to serve households of Columbia Gas of Ohio. IGS broadened its residential and small-commercial focus in 1999, developing into a competitive supplier rather than remaining primarily a wholesale business. The company entered residential commodity sales in 2009 and expanded its electricity activities in the following years. In 2010, it moved into a new Dublin headquarters that received LEED Platinum certification. The building was described as the first commercial office building in central Ohio to achieve that highest LEED rating. In 2011, IGS acquired Accent Energy and its subsidiary Dynowatt. That same year it began electric service in Chicago and Pennsylvania, and in February 2012 it began serving electric customers in Ohio. IGS also diversified into transportation fuel and energy infrastructure. In 2013, its CNG-services business announced plans for four compressed-natural-gas stations along Interstate 79 in West Virginia and Pennsylvania, followed by plans for another station in Youngstown, Ohio. Reference material states that IGS owns, operates, or maintains 20 CNG stations across Ohio, Indiana, West Virginia, Pennsylvania, and Wisconsin. Renewable and efficiency services became increasingly important. IGS introduced solar services for residential, commercial, and community customers under the IGS Solar brand in 2015. It added commercial LED-lighting services in 2018 and began offering green-electricity and carbon-neutral-natural-gas products to new residential customers in 2020. IGS Community Solar was launched in October 2021 and was reported as commercially active in Chicago, Maryland, Pennsylvania, and New York by July 2023. The company also rolled out a residential rooftop-solar program in Chicago and Pennsylvania in February 2023. In July 2022, IGS acquired Dominion Energy Solutions. The transaction reinforced the company’s strategy of combining retail energy supply with broader customer energy services. IGS remains an active, privately held U.S. energy business with operations spanning commodity supply, renewable energy, solar, efficiency, lighting, compressed natural gas, and distributed-generation solutions.
- 2023
Residential rooftop solar rollout
[1]IGS Solar introduced a residential rooftop-solar program in Chicago and Pennsylvania.
- 2022
Dominion Energy Solutions acquired
[1]IGS acquired Dominion Energy Solutions in July.
- 2021
Community Solar launched
[1]IGS Community Solar began as a pilot program.
- 2020
Lower-carbon retail products launched
[1]IGS began offering green electricity and carbon-neutral natural gas to new residential customers.
- 2018
Commercial lighting services added
[1]IGS began offering LED lighting to commercial customers.
- 2015
IGS Solar introduced
[1]The company began offering solar services to businesses, communities, and residential customers.
- 2012
Ohio electricity service begins
[1]IGS began serving electric customers in Ohio.
- 2011
Accent Energy acquisition
[1]IGS acquired Accent Energy and subsidiary Dynowatt and expanded electric service into Chicago and Pennsylvania.
- 2010
LEED Platinum headquarters opens
[1]IGS moved into its current Dublin headquarters, which received LEED Platinum certification.
- 1997
Residential natural-gas market entry
[1]Following Ohio residential deregulation, IGS began serving Columbia Gas of Ohio residential customers.
Products and positioning
A customer-facing energy supplier that combines competitive natural-gas and electricity service with renewable energy, solar, energy-efficiency, lighting, compressed-natural-gas, and distributed-energy solutions.
Energy retail · 1992
Natural gas supply
IGS Energy supplies natural gas to residential, small-commercial, commercial, and industrial customers through competitive energy-choice programs and related retail arrangements. Its gas business developed from the company’s original wholesale activities into direct end-user marketing and residential supply.
Energy retail · 2011
Electricity supply
The company provides electricity to customers in selected U.S. markets, including Ohio, Pennsylvania, and Illinois. Electricity became a more significant part of the portfolio after the Accent Energy and Dynowatt acquisition and subsequent market expansion.
Solar energy · 2015
IGS Solar
IGS Solar provides solar-related services for residential customers, businesses, and communities. The offering includes commercial and community solar activity and, from 2023, a residential rooftop-solar program in Chicago and Pennsylvania.
Community solar · 2021
IGS Community Solar
IGS Community Solar develops and operates shared-solar offerings for customers who may not install panels directly at their homes or businesses. By 2023, the program was reported as operating in Chicago, Maryland, Pennsylvania, and New York.
Energy efficiency · 2018
IGS Lighting Solutions
This commercial offering provides LED-lighting solutions intended to help business customers improve lighting efficiency and manage energy consumption.
Alternative-fuel infrastructure · 2013
Compressed natural gas services
IGS Energy has developed, owned, operated, or maintained compressed-natural-gas refueling infrastructure. Reference material describes a network of 20 stations across several Midwestern and Appalachian states.
Environmental energy products · 2020
Green electricity and carbon-neutral natural gas
Beginning in 2020, IGS offered new residential customers electricity marketed as 100% green and natural gas marketed as carbon neutral, extending the company’s environmental-product range beyond conventional commodity supply.
Brand decisions
2022
Acquire Dominion Energy SolutionsM&ABackground
IGS continued to expand its retail energy and customer-solutions platform through acquisitions.
Action taken
IGS acquired Dominion Energy Solutions in July 2022.
Aftermath
The transaction added to IGS’s multistate energy-services business; detailed financial terms are not provided in the reference material.
2020
Offer green electricity and carbon-neutral natural gasProduct launchBackground
IGS was increasing its emphasis on environmentally oriented energy products.
Action taken
The company began offering 100% green electricity and carbon-neutral natural gas to new residential customers.
Aftermath
These products strengthened the environmental positioning of IGS’s residential retail business.
2015
Launch IGS SolarProduct launchBackground
The company was diversifying from commodity supply into renewable and distributed-energy services.
Action taken
IGS introduced solar services for residential, commercial, and community customers under the IGS Solar brand.
Aftermath
Solar became a continuing component of IGS’s broader energy-solutions portfolio.
2013
Build a compressed-natural-gas corridorStrategyBackground
IGS pursued transportation-fuel infrastructure as an extension of its natural-gas business.
Action taken
IGS Energy CNG Services announced plans for four refueling stations along Interstate 79 and later announced another station in Youngstown, Ohio.
Aftermath
The company subsequently operated or maintained CNG stations across Ohio, Indiana, West Virginia, Pennsylvania, and Wisconsin.
Planned investment. $10 million announced (2013)
2011
Acquire Accent Energy and DynowattM&ABackground
IGS sought to broaden its retail energy platform beyond its established natural-gas business.
Action taken
The company acquired Accent Energy and its subsidiary Dynowatt, both associated with energy supply and retail operations.
Aftermath
The acquisition supported IGS’s expansion into electricity and additional customer markets, including Chicago and Pennsylvania.
Recent events
Reported
IGS Energy announces JadeTrack acquisition[2]
IGS Energy announced its acquisition of software provider JadeTrack. The companies said JadeTrack would help present energy usage on a manageable, easy-to-understand platform; integration details were still in the works.
Reported
IGS Energy acquires JadeTrack[3]
IGS Energy acquired JadeTrack, a software provider that helps businesses manage energy usage and sustainability program performance.
Sources3 sources
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