US Department of Energy

DTE Energy is a major provider of gas and electric utility services in Michigan, serving approximately 2.3 million customers through its DTE Electric division and 1.3 million customers via DTE Gas. The company operates two regulated utilities that account for a significant portion of its earnings. In addition to its utility services, DTE Energy is involved in nonutility ventures, including energy marketing and trading, renewable natural gas facilities, and on-site industrial energy projects. The company is committed to fostering community development and supports various initiatives through the DTE Energy Foundation, which focuses on arts, education, and environmental needs, among others.

FirstEnergy Corporation, established in 1996 and headquartered in Akron, Ohio, is a diversified energy company that generates, transmits, and distributes electricity to approximately six million customers across Ohio, Pennsylvania, West Virginia, Maryland, New Jersey, and New York. The company operates through regulated distribution and transmission segments, owning and managing a vast network of power plants, transmission lines, and distribution systems. These include coal-fired, nuclear, hydroelectric, natural gas, wind, and solar facilities, as well as 24,486 circuit miles of transmission lines and 269,691 miles of distribution lines, with a total installed transformer capacity of approximately 156,115,196 kilovolt-amperes. In addition to its core operations, FirstEnergy also provides energy-related products and services to retail and wholesale customers, contributing to the strengthening of local communities through its foundation's support of nonprofit organizations.

Shell is a global energy company operating in over 70 countries, employing approximately 87,000 people. It explores for, produces, refines, and markets oil and natural gas, while also manufacturing and marketing chemicals. The company aims to power progress responsibly by meeting the world's growing energy demand while transitioning towards cleaner energy solutions.

LongPath Technologies develops laser-based monitoring solutions for the oil and gas sector. The company offers long-range laser systems and managed infrastructure for continuous emissions monitoring across large areas, capable of detecting leaks and identifying the absorption fingerprints of multiple molecules. This enables emission source identification and rate quantification in a cost-effective manner, helping operators validate gas performance and support safer, more sustainable operations.

Georgia Power Company, incorporated in 1930 and headquartered in Atlanta, Georgia, is a subsidiary of The Southern Company that provides electric power and energy services to businesses and residents across the state. The company generates electricity through a diverse mix of sources, including natural gas, oil, coal, nuclear, hydro, and renewable energy. Georgia Power is committed to delivering reliable and affordable energy, and it also operates a solar program to promote renewable energy production. Additionally, the company offers energy efficiency programs and tips to help customers reduce their energy consumption and costs, ensuring a sustainable energy future for Georgia.

Gevo specializes in producing renewable fuels and chemicals using sustainable resources. Its primary products include gasoline, jet fuel, diesel fuel, isobutanol, and renewable natural gas. The company aims to reduce greenhouse gas emissions by providing low-carbon alternatives to fossil fuels.

PG&E Corporation, through its primary subsidiary Pacific Gas and Electric Company, is a major utility provider in northern and central California, delivering electricity and natural gas to millions of customers. The company's service area spans from Eureka to Bakersfield, encompassing 47 of the state's 58 counties. PG&E generates electricity from a diverse mix of sources, including nuclear, hydroelectric, fossil fuels, and renewable energy. The company operates an extensive infrastructure, comprising approximately 18,000 circuit miles of transmission lines, over 107,000 circuit miles of distribution lines, and a natural gas system with around 43,300 miles of distribution pipelines. PG&E serves a wide range of customers, including residential, commercial, industrial, and agricultural sectors. Established in 1995 and headquartered in San Francisco, PG&E has undergone significant restructuring, including a period of bankruptcy court supervision from January 2019 to June 2020, prior to its current operations.

Gas Technology Institute is a research, development, and training organization addressing energy and environmental challenges to enable a secure, abundant, and affordable energy future. The company provides economic value to the natural gas industry and energy markets by developing technology-based solutions for industry, government, and consumers. Its research initiatives address issues impacting the natural gas and energy markets across the industry’s value chain—supply, delivery, and end use. GTI offers an integrated systems perspective to expand the supply of affordable energy, ensure a safe and reliable energy delivery infrastructure, and promote the efficient use of energy resources. GTI is based in Des Plaines, Illinois, founded in 1941 as a non-profit corporation.

Eversource Energy is a diversified holding company that provides rate-regulated electric and natural gas distribution services to over 3.6 million customers across Connecticut, Massachusetts, and New Hampshire in the Northeast United States. It operates through four segments: Electric Distribution, Electric Transmission, Natural Gas Distribution, and Water Distribution.

Baltimore Gas & Electric (BGE), established in 1816, is a subsidiary of Exelon Corporation. Headquartered in Baltimore, Maryland, BGE serves over 1.2 million electric customers and approximately 650,000 natural gas customers in Central Maryland. The company's primary business involves the regulated retail sale of electricity and natural gas to residential, commercial, and industrial consumers. It maintains an extensive infrastructure for transmission and distribution of electricity, comprising around 9,176 circuit miles of overhead lines and 17,489 circuit miles of underground lines. Additionally, BGE operates a liquefied natural gas facility with a storage capacity of 1,056 million cubic feet (mmcf) and owns numerous natural gas city gate stations. The company's approximately 3,400 employees are dedicated to ensuring safe, reliable delivery of energy services, along with initiatives focused on energy management, conservation, environmental stewardship, and community assistance.

Cummins is a global leader in designing, manufacturing, distributing, and servicing diesel and natural gas engines, electric power generation systems, and related components. With operations in over 190 countries, the company serves original equipment manufacturers (OEMs), distributors, and other customers through its extensive network of company-owned locations and dealers. Cummins operates four segments: Engine, Power Generation, Components, and Distribution.

Gas Technology Institute is a research, development, and training organization addressing energy and environmental challenges to enable a secure, abundant, and affordable energy future. The company provides economic value to the natural gas industry and energy markets by developing technology-based solutions for industry, government, and consumers. Its research initiatives address issues impacting the natural gas and energy markets across the industry’s value chain—supply, delivery, and end use. GTI offers an integrated systems perspective to expand the supply of affordable energy, ensure a safe and reliable energy delivery infrastructure, and promote the efficient use of energy resources. GTI is based in Des Plaines, Illinois, founded in 1941 as a non-profit corporation.

RedoxBlox develops thermochemical energy storage technology to decarbonize high-temperature industrial thermal processing and provide long-duration energy storage for the grid. The technology enables continuous high-temperature heat while integrating with existing infrastructure to replace natural gas combustion, supporting electrification and renewables deployment. It reduces carbon dioxide and nitrogen oxides emissions, enhances safety and resilience, and aims to lower total capital cost for industrial processors and power plant operators. By delivering scalable, long-duration heat, RedoxBlox helps industries leverage renewable energy and move toward low-emission operations.

LongPath Technologies develops laser-based monitoring solutions for the oil and gas sector. The company offers long-range laser systems and managed infrastructure for continuous emissions monitoring across large areas, capable of detecting leaks and identifying the absorption fingerprints of multiple molecules. This enables emission source identification and rate quantification in a cost-effective manner, helping operators validate gas performance and support safer, more sustainable operations.

Renascent Energy Management is a privately held, technology-focused energy firm that develops decarbonization solutions for producing clean hydrogen from natural gas.

Susteon is a company focused on developing innovative energy transition technologies aimed at addressing environmental challenges. It specializes in direct air capture (DAC) technology, which captures carbon dioxide directly from high-emission sources. Susteon’s proprietary Dual-Functional Materials (DFM) not only capture carbon dioxide from the atmosphere but also convert it into Renewable Natural Gas (RNG). This capability allows clients to produce various fuels, including diesel and aviation fuel, from the captured carbon dioxide. Through its projects, including support from the Department of Energy, Susteon is committed to advancing sustainable solutions for carbon management and fuel production.

National Grid is a major investor-owned energy company that owns and operates electricity transmission systems in England and Wales and manages regulated gas and electricity networks in the United Kingdom and United States. It focuses on delivering electricity and gas safely, reliably, and efficiently to customers and communities, while transforming networks with smarter, cleaner, and more resilient energy solutions to support decarbonisation. In the United Kingdom, it owns the electricity transmission and distribution assets and gas transmission infrastructure and also provides metering services. In the United States, it owns regulated transmission and generation assets serving multiple states, along with metering services and merchant transmission lines. It also operates the Grain LNG facility in the United Kingdom. As one of the world's largest investor-owned energy companies, National Grid oversees investments through its regulated businesses and related ventures, aiming to connect millions of customers to dependable energy while pursuing energy-system innovation and decarbonisation.

Consumers Energy Company is a Michigan-based electric and natural gas utility serving residential, commercial, and industrial customers across the Lower Peninsula. It delivers electricity and natural gas to about 6.7 million residents in 68 counties. Founded in 1886 and headquartered in Jackson, Michigan, it operates through Electric Utility and Gas Utility segments and also includes NorthStar Clean Energy as a non-utility investments unit. It is a subsidiary of CMS Energy Corporation.

Entergy New Orleans, LLC is an electric and gas utility company that operates primarily in Orleans Parish, Louisiana. The company is responsible for electric power production and retail distribution, managing 36 miles of transmission mains and 1,740 miles of distribution mains. Entergy New Orleans owns and operates power plants with a total electric generating capacity of approximately 30,000 megawatts, which includes nearly 9,000 megawatts sourced from nuclear power. The utility also oversees 1,430 miles of electricity distribution and 158 transmission lines, along with 22 substations. In terms of customer service, it delivers electricity to approximately 205,000 customers and natural gas to around 108,000 customers. Entergy New Orleans is a subsidiary of Entergy Utility Holding Company, LLC and is headquartered in New Orleans.

Xcel Energy is a leading electric and natural gas utility company serving approximately 6 million customers across eight states. It generates power through diverse sources including coal, nuclear, natural gas, hydro, solar, wind, and biomass. The company is committed to reducing carbon emissions and aims to supply more than half of its electricity from renewable sources by 2030.

Xcel Energy is a leading electric and natural gas utility company serving approximately 6 million customers across eight states. It generates power through diverse sources including coal, nuclear, natural gas, hydro, solar, wind, and biomass. The company is committed to reducing carbon emissions and aims to supply more than half of its electricity from renewable sources by 2030.

Georgia Power Company, incorporated in 1930 and headquartered in Atlanta, Georgia, is a subsidiary of The Southern Company that provides electric power and energy services to businesses and residents across the state. The company generates electricity through a diverse mix of sources, including natural gas, oil, coal, nuclear, hydro, and renewable energy. Georgia Power is committed to delivering reliable and affordable energy, and it also operates a solar program to promote renewable energy production. Additionally, the company offers energy efficiency programs and tips to help customers reduce their energy consumption and costs, ensuring a sustainable energy future for Georgia.

Founded in 1867, the company operates a comprehensive natural gas distribution, transmission, and storage system serving approximately 22 million customers across Central and Southern California. As of 2019, it maintained over 54,000 miles of pipelines and nine compressor stations.

Howard Energy Partners is an independent midstream energy company that specializes in the ownership and operation of natural gas gathering and transportation pipelines, natural gas liquids processing plants, rail facilities, liquid storage terminals, and deep-water port facilities. The company operates a comprehensive midstream platform that serves the energy sector, facilitating access to clean, low-cost, and reliable energy. Its assets are primarily located in Texas and Pennsylvania, and the company maintains corporate offices in San Antonio, Houston, and Mexico City. Through its integrated services, Howard Energy Partners plays a crucial role in the energy supply chain, supporting the efficient movement and processing of natural gas and related products.

Con Edison is a prominent organization that operates one of the largest energy delivery systems in the world, supplying electricity, gas, and steam primarily to New York City and Westchester County. The company is also committed to providing renewable energy and environmental services, alongside cost-effective energy management solutions. This diverse portfolio positions Con Edison as a key player in the energy sector, focusing on both traditional and sustainable energy sources to meet the needs of its extensive customer base.

Founded in 1889, Portland General Electric is Oregon's largest utility company, serving approximately 900,000 customers across 52 cities. It operates a diverse portfolio of power plants including thermal, hydroelectric, wind farms, and energy storage facilities. The company is committed to providing reliable electricity at affordable prices while also leading the way in renewable energy practices.

Con Edison is a prominent organization that operates one of the largest energy delivery systems in the world, supplying electricity, gas, and steam primarily to New York City and Westchester County. The company is also committed to providing renewable energy and environmental services, alongside cost-effective energy management solutions. This diverse portfolio positions Con Edison as a key player in the energy sector, focusing on both traditional and sustainable energy sources to meet the needs of its extensive customer base.

National Grid is a major investor-owned energy company that owns and operates electricity transmission systems in England and Wales and manages regulated gas and electricity networks in the United Kingdom and United States. It focuses on delivering electricity and gas safely, reliably, and efficiently to customers and communities, while transforming networks with smarter, cleaner, and more resilient energy solutions to support decarbonisation. In the United Kingdom, it owns the electricity transmission and distribution assets and gas transmission infrastructure and also provides metering services. In the United States, it owns regulated transmission and generation assets serving multiple states, along with metering services and merchant transmission lines. It also operates the Grain LNG facility in the United Kingdom. As one of the world's largest investor-owned energy companies, National Grid oversees investments through its regulated businesses and related ventures, aiming to connect millions of customers to dependable energy while pursuing energy-system innovation and decarbonisation.

Summit Natural Gas of Maine, Inc. operates as a natural gas distributor.

Founded in 1867, the company operates a comprehensive natural gas distribution, transmission, and storage system serving approximately 22 million customers across Central and Southern California. As of 2019, it maintained over 54,000 miles of pipelines and nine compressor stations.

Atrex Energy, Inc. specializes in the design and manufacture of remote power generation systems tailored for harsh environments and remote locations. The company employs innovative tubular solid oxide fuel cell technology that efficiently converts conventional natural gas and propane into direct current electrical power, eliminating the need for combustion. This approach provides clients with cost-effective and reliable power solutions suited for various industries, including oil and gas, mining, construction, off-grid telecommunications, railroads, and environmental monitoring. Atrex Energy distributes its products through authorized partners across Alaska, Canada, the United States, and Mexico. Founded in 1994 and headquartered in Walpole, Massachusetts, the company was formerly known as Acumentrics SOFC Corporation until its rebranding in May 2016. As sales grow, Atrex Energy anticipates expanding its workforce to meet increasing demand for its advanced power generation systems.

Atrex Energy, Inc. specializes in the design and manufacture of remote power generation systems tailored for harsh environments and remote locations. The company employs innovative tubular solid oxide fuel cell technology that efficiently converts conventional natural gas and propane into direct current electrical power, eliminating the need for combustion. This approach provides clients with cost-effective and reliable power solutions suited for various industries, including oil and gas, mining, construction, off-grid telecommunications, railroads, and environmental monitoring. Atrex Energy distributes its products through authorized partners across Alaska, Canada, the United States, and Mexico. Founded in 1994 and headquartered in Walpole, Massachusetts, the company was formerly known as Acumentrics SOFC Corporation until its rebranding in May 2016. As sales grow, Atrex Energy anticipates expanding its workforce to meet increasing demand for its advanced power generation systems.