Illinois plays a significant role in the natural gas sector, providing vital energy solutions to residential and commercial consumers. With a combination of distribution companies and innovative energy service providers, the industry delivers reliable natural gas, renewable natural gas (RNG), and energy management services. As environmental concerns grow, many of these companies are incorporating clean technology and renewable practices into their operations to reduce emissions. The future looks promising as Illinois continues to enhance infrastructure and adopt sustainable solutions, reflecting a shift towards cleaner energy sources while ensuring consistent supply.

The list features 23 prominent natural gas companies in Illinois, ranging from established giants like Nicor Gas, founded in 1954, to innovative entrants like Amp Americas, founded in 2011. Companies vary in size from smaller teams of fewer than 20 employees to large-scale operations with thousands in workforce. Their specializations include natural gas distribution, engineering, renewable natural gas development, and energy management. Each company plays a critical role in enhancing energy efficiency and optimizing the delivery of natural gas across the state, addressing diverse consumer demands.

Read on to discover the top natural gas companies in Illinois.

Top 23 Natural Gas Companies Companies in Illinois

1. Nicor Gas

• Website: nicorgas.com
• Ownership type: Private
• Headquarters: Naperville, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1954
• Headcount: 1001-5000
• LinkedIn: nicor-gas

Nicor Gas, founded in 1954 and based in Naperville, Illinois, is a natural gas distribution company that serves over two million customers across the state. The company operates an extensive network of nearly 34,000 miles of pipelines, ensuring reliable delivery of natural gas for residential and commercial use. Nicor Gas is dedicated to energy efficiency, offering various programs and assistance options to help customers save on energy costs. Their commitment to safety and community engagement is evident through their initiatives aimed at promoting conservation and environmental stewardship. With a workforce of approximately 1,441 employees, Nicor Gas plays a crucial role in the energy sector, focusing on delivering safe and affordable natural gas solutions to its customers.

2. North Shore Gas

• Website: northshoregasdelivery.com
• Ownership type: Private
• Headquarters: Waukegan, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1900
• Headcount: 51-200
• LinkedIn: north-shore-gas

North Shore Gas, founded in 1900, is a private natural gas provider based in Waukegan, Illinois. The company specializes in delivering safe and reliable natural gas services to both residential and commercial customers in the northern suburbs of Chicago. Their offerings include various energy services, such as energy-saving programs designed to help customers manage their energy consumption effectively. North Shore Gas also provides critical assistance in the event of natural gas leaks, ensuring the safety of their customers. With a workforce of approximately 68 employees, the company operates entirely within the United States, focusing on the local market. Their commitment to customer service and safety is evident in their comprehensive approach to energy management and emergency response.

3. Amp Americas

• Website: ampamericas.com
• Ownership type: Corporate
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $41.0M, June 2019
• Founded year: 2011
• Headcount: 51-200
• LinkedIn: amp-americas

Amp Americas is a renewable energy company based in Chicago, Illinois, founded in 2011. The firm specializes in the development and operation of renewable natural gas (RNG) facilities, primarily partnering with dairy farmers to convert waste into energy. Their projects focus on creating sustainable fuel solutions for transportation fleets, which is crucial in the current climate-conscious market. Amp Americas has successfully developed several large-scale RNG projects, processing waste from thousands of cows and producing millions of gallons of RNG annually. They also provide services such as asset management, environmental credit trading, and regulatory compliance, all aimed at promoting cleaner air and reducing greenhouse gas emissions. The company has received significant funding, amounting to $41 million, which underscores its growth potential and commitment to expanding its impact in the renewable energy sector.

4. Nordic Energy Services, LLC

• Website: nordicenergy-us.com
• Ownership type: Private
• Headquarters: Oakbrook Terrace, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2002
• Headcount: 11-50
• LinkedIn: nordic-energy-services-llc

Nordic Energy Services, LLC, founded in 2002 and based in Oakbrook Terrace, Illinois, is a privately owned energy supplier. The company specializes in providing natural gas and electricity services to residential and commercial customers across 13 states, including Illinois, New York, and Pennsylvania. Nordic Energy operates as an Alternative Retail Electric Supplier (ARES) and an Alternative Gas Supplier (AGS), which allows them to offer competitive pricing and flexible energy options. They serve over 140,000 residential customer equivalent accounts, emphasizing customer service and education in the deregulated energy market. In addition to their core energy services, Nordic Energy has expanded its offerings to include cable TV, internet, and home warranty services, aiming to simplify the selection process for their clients. Their NordiGreen Program highlights their commitment to renewable energy through the use of renewable energy credits and carbon offsets.

5. Maverick Energy Inc.

• Website: maverickenergyinc.com
• Ownership type: Venture Capital
• Headquarters: Robinson, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Seed, July 2019
• Founded year: 1980
• Headcount: 1-10
• LinkedIn: maverick-energ-yinc

Maverick Energy Inc., based in Robinson, Illinois, is an independent energy company founded in 1980. The firm specializes in clean energy solutions and the production of natural resources, with a particular focus on coalbed methane extraction and renewable natural gas. Operating primarily in the Illinois Basin, Maverick manages over 300 wells and employs advanced horizontal drilling techniques to enhance productivity and recovery yields. Their operations not only aim to reduce energy costs but also to minimize emissions, reflecting a commitment to sustainable practices. The company serves energy investors and agricultural businesses, providing innovative solutions that address both economic and environmental challenges. Maverick Energy is also involved in projects that promote local job creation and environmental benefits through renewable natural gas initiatives.

6. GTI Energy

• Website: gti.energy
• Ownership type: Corporate
• Headquarters: Des Plaines, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2008
• Founded year: 1941
• Headcount: 201-500
• LinkedIn: gas-technology-institute

GTI Energy, based in Des Plaines, Illinois, has been a pivotal player in the energy sector since its founding in 1941. The company specializes in consulting and research, focusing on innovative energy solutions that address contemporary energy challenges. GTI Energy offers a wide array of services, including research and development, technical consulting, and analytical services tailored for businesses and organizations within the energy sector. Their expertise extends to critical areas such as methane emissions, carbon management, and gas conversion and processing. They actively engage in projects that promote the efficient use of natural gas and renewable energy, contributing to the transition towards sustainable energy systems. GTI Energy's laboratories are equipped to perform extensive testing and analysis, ensuring the quality and safety of natural gas and related products. Their commitment to advancing energy technologies positions them as a key resource for companies looking to enhance their operations in the natural gas industry.

7. TruMarx Data Partners - CG Hub/COMET Platform

• Website: trumarx.com
• Ownership type: Venture Capital
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $7.2M, October 2018
• Founded year: 2012
• Headcount: 1-10
• LinkedIn: trumarx-data-partners

TruMarx Data Partners, Inc. is a technology firm based in Chicago, Illinois, that specializes in energy trading solutions with a strong focus on the natural gas sector. Founded in 2012, the company has developed platforms such as CG Hub and COMET, which are designed to enhance the trading of certified natural gas and emissions certification. TruMarx's offerings cater to energy producers and marketers who seek to improve transparency and efficiency in their transactions while aligning with sustainability objectives. The CG Hub platform, in particular, has gained recognition for its role in facilitating the trading of certified gas, which is gas that has been assessed for its methane emissions. This innovative marketplace not only increases liquidity and price transparency but also supports the industry's shift towards lower carbon emissions. TruMarx has received funding amounting to $7,216,000, which underscores investor confidence in its business model and growth potential. The company is actively involved in shaping the future of natural gas trading by promoting certified gas transactions and collaborating with industry stakeholders to drive market transformation.

8. Middle River Power

• Website: middleriverpower.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: middle-river-power

Middle River Power is an energy management company based in Chicago, Illinois, founded in 2016. The firm specializes in the development and management of power generation assets, focusing on natural gas, coal, geothermal, and solar energy facilities. With a team of industry veterans, Middle River Power emphasizes operational excellence and commercial results. They manage around 3,000 MW of power generation assets, including several natural gas-fired plants such as High Desert, Big Sandy, and Tracy. Their approach includes analyzing regulatory changes and fuel fundamentals to optimize asset performance. The company operates with a strong capital base, allowing them to pursue opportunities in energy asset management and development. Their portfolio reflects a commitment to providing reliable energy solutions to utility companies and other energy providers.

9. Midwestern Contractors

• Website: midwesterncontractors.com
• Ownership type: Corporate
• Headquarters: Elburn, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2013
• Founded year: 1951
• Headcount: 201-500
• LinkedIn: midwestern-contractors

Midwestern Contractors, based in Elburn, Illinois, has been a significant player in the construction and maintenance of oil, gas, bio-gas, and industrial gas infrastructure since its founding in 1951. The company offers a comprehensive range of services, including pipeline construction, electrical installations, and station maintenance. They have extensive experience in building high-pressure pipelines for various gases, including natural gas, hydrogen, and carbon dioxide. Their capabilities extend to both greenfield and brownfield projects, ensuring that they can meet the needs of their clients in the energy sector. Midwestern Contractors is also involved in renewable energy initiatives, such as biogas projects, which highlights their adaptability in a changing energy market. With a workforce skilled in various trades, they are equipped to handle complex projects while prioritizing safety and environmental protection.

10. USDI (Utility Safety & Design, Inc.)

• Website: usdi.us
• Ownership type: Private
• Headquarters: Olney, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1969
• Headcount: 51-200
• LinkedIn: utility-safety-design-inc

Utility Safety & Design, Inc. (USDI) is a private company based in Olney, Illinois, that has been operational since 1969. With a workforce of approximately 51-200 employees, USDI focuses on providing comprehensive services to the natural gas industry. Their offerings include consultation, engineering, construction, and operational services, which cater to local distribution companies and master meter operations. USDI is recognized for its commitment to compliance and efficient management of gas systems, ensuring that their clients meet regulatory requirements while optimizing their operations. The company also specializes in corrosion services, GIS services, and odorization solutions, making them a trusted partner for over 500 customers across the Midwest. Their expertise extends to renewable natural gas (RNG) pipeline services, where they assist in the design and operation of pipelines that transport RNG from various sources. USDI's long-standing presence in the industry and their focus on safety and compliance underscore their relevance in the natural gas sector.

11. Shactee Engineering

• Website: shactee.net
• Ownership type: Private
• Headquarters: Woodridge, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2018
• Headcount: 51-200
• LinkedIn: shactee

Shäctee Engineering, LLC is an engineering firm based in Woodridge, Illinois, specializing in the design and inspection of natural gas pipelines. Founded in 2018, the company was established by industry veterans with nearly 50 years of combined experience. Shactee provides a comprehensive suite of services tailored to local distribution utility companies, including engineering design, regulatory compliance, environmental impact assessments, and permitting. Their approach is characterized by a strong focus on client satisfaction and employee well-being, which they believe drives project success. The firm has gained recognition for its rapid growth, ranking No. 22 on Inc. Magazine’s list of fastest-growing companies, and has received certification as a Woman-Owned Business Enterprise (WBE). Shactee Engineering is committed to delivering quality work on time and within budget, positioning itself as a reliable partner in the natural gas sector.

12. Aether DBS

• Website: aetherdbs.com
• Ownership type: Private
• Headquarters: Naperville, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: aether-dbs

Aether DBS, founded in 2000 and based in Naperville, Illinois, is a private energy equipment manufacturer specializing in clean energy solutions. The company designs and produces a variety of products aimed at improving gas generation processes and energy efficiency. Their offerings include gas blending systems, filtration units, and renewable natural gas (RNG) equipment, which are tailored to meet the specific needs of their customers in the industrial and agricultural sectors. Aether DBS is particularly noted for its innovative approaches to hydrogen blending and synthetic natural gas (SNG) systems, which are increasingly relevant in today's energy market. The company operates entirely within the United States and has a workforce of 21 employees, reflecting a focused and specialized approach to its operations. Aether DBS has not reported any recent funding, indicating a self-sustaining business model that relies on its product sales and services.

13. Indeck Energy Services

• Website: indeckenergy.com
• Ownership type: Corporate
• Headquarters: Buffalo Grove, Illinois, United States (USA)
• Latest funding: July 2001
• Founded year: 1985
• Headcount: 51-200
• LinkedIn: indeck-energy-services

Indeck Energy Services, based in Buffalo Grove, Illinois, is an energy company that specializes in power generation and renewable energy solutions. Founded in 1985, the company has developed a robust portfolio of utility-scale projects, focusing on sustainable energy production. Indeck Energy manages various stages of project development, from initial engineering to asset management, ensuring efficient energy generation. They operate over 1 GW of generating capacity, with a notable emphasis on natural gas facilities, including the Indeck Niles Energy Center, which has a capacity of 1,085 MW, and several other plants across the United States. Their clientele includes utility companies and municipalities seeking reliable energy solutions. The company is also involved in community relations and environmental permitting, demonstrating a commitment to responsible energy development.

14. Lower Electric LLC

• Website: lowerelectric.com
• Ownership type: Private
• Headquarters: Northbrook, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2001
• Headcount: 11-50
• LinkedIn: lower-electric-llc

Lower Electric LLC, founded in 2001 and based in Northbrook, Illinois, is a consulting firm dedicated to energy management services for businesses. The company specializes in helping clients optimize their energy expenditures through tailored solutions for electricity, natural gas, and renewable energy procurement. Operating primarily in deregulated states, Lower Electric has developed a bidding process that allows businesses to compare rates from various energy suppliers, ensuring they receive competitive pricing. With a focus on commercial clients, the firm has successfully assisted thousands of businesses in managing their energy costs, emphasizing long-term relationships and repeat business. Their services also include benchmarking, budgeting, and energy efficiency strategies, making them a comprehensive partner for organizations looking to enhance their energy management practices.

15. VRG Controls LLC

• Website: vrgcontrols.com
• Ownership type: Private
• Headquarters: Lake Zurich, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2012
• Headcount: 11-50
• LinkedIn: vrgcontrols

VRG Controls LLC, founded in 2012 and based in Lake Zurich, Illinois, is a private manufacturer that specializes in high-performance control valves and instrumentation tailored for the natural gas sector. The company provides critical products that facilitate gas regulation and measurement, ensuring that pipeline operations are both reliable and efficient. With a commitment to quality and environmental responsibility, VRG Controls has developed control instrumentation that features zero emissions capabilities, reflecting a modern approach to sustainability in the industry. Their team boasts extensive operational experience and design expertise, which enhances their ability to support natural gas measurement and regulation facilities. VRG Controls is recognized for its quality management system, conforming to ISO 9001:2015 standards, which underscores their dedication to maintaining high standards in their manufacturing processes.

16. Weichai America CORP.

• Website: weichaiamerica.com
• Ownership type: Private
• Headquarters: Rolling Meadows, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: weichai-america-corp.

Weichai America Corp., founded in 2009 and based in Rolling Meadows, Illinois, is a subsidiary of Weichai Group, a major player in the global engine manufacturing sector. The company specializes in the production of diesel and natural gas engines, catering primarily to the North American commercial market. Weichai America focuses on providing reliable power solutions for industries such as agriculture and oil/gas drilling. With a robust 170,000 square foot research and development facility, the company is dedicated to creating clean-burning alternative fuel engines and industrial components. They have received EPA certification for their natural gas engines, which allows them to offer competitive, environmentally friendly options for off-road and stationary applications. Weichai America is committed to meeting the needs of its industrial customers while promoting sustainable energy solutions.

17. Pfes

• Website: pfes.com
• Ownership type: Corporate
• Headquarters: Western Springs, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: August 2024
• Founded year: 2012
• Headcount: 51-200
• LinkedIn: planet-forward-energy-solutions

PFES, founded in 2012 and based in Western Springs, Illinois, is a consulting firm that specializes in the energy, utilities, and renewables sectors. With a workforce of approximately 116 employees, PFES provides a range of services including project management, engineering, and strategic consulting. Their primary clientele consists of businesses in the energy sector, particularly those involved in natural gas distribution and delivery. PFES has managed over $40 billion in capital projects, showcasing their capability in handling complex initiatives. Their commitment to safety and quality is evident in their operational practices, and they have been recognized as one of the top program management firms in the industry. PFES's focus on innovative technologies and data-driven solutions positions them as a valuable partner for energy companies navigating the challenges of the natural gas market.

18. Midwest Services Group

• Website: midwestservices.com
• Ownership type: Private
• Headquarters: Vandalia, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: midwest-services-group

Midwest Services Group, based in Vandalia, Illinois, is a private pipeline contractor established in 2009. The company specializes in the construction and maintenance of infrastructure for the gas, oil, and renewable energy sectors. Their services include pipeline construction, right-of-way maintenance, and civil construction and restoration. With a dedicated team, they focus on providing reliable and efficient infrastructure solutions tailored to the needs of energy companies. Midwest Services Group operates throughout the United States, ensuring that they meet the demands of their clients while maintaining a strong commitment to safety and environmental stewardship. Their expertise in both traditional energy and renewable projects positions them as a versatile contractor in the energy sector.

19. 3P Utility Services

• Website: 3putilities.com
• Ownership type: Private
• Headquarters: Carol Stream, Illinois, United States (USA)
• Founded year: 2016
• Headcount: 501-1000
• LinkedIn: 3p-utility-mastec

3P Utility Services, also known as Precision Pipeline, LLC, is a private pipeline construction company based in Carol Stream, Illinois. Founded in 2004, the company has carved out a niche in the construction of liquid and gas transmission pipelines. With a workforce of 501-1000 employees, Precision Pipeline emphasizes safety, quality, and environmental compliance in all its operations. The company has successfully completed numerous projects across the United States, particularly in regions rich in natural gas resources, such as the Marcellus and Utica Shale. Their services include large-diameter steel transmission, auger boring, and various other pipeline construction techniques. Precision Pipeline is also committed to community involvement and social responsibility, actively engaging in initiatives that support local communities and promote awareness of critical social issues, such as human trafficking. This multifaceted approach not only enhances their reputation but also aligns with the growing emphasis on corporate social responsibility in the energy sector.

20. ENTRUST Solutions Group

• Website: entrustsol.com
• Ownership type: Venture Capital
• Headquarters: Warrenville, Illinois, United States (USA)
• Employee distribution: United States (USA) 98%, Other 2%
• Latest funding: August 2023
• Founded year: 2002
• Headcount: 1001-5000
• LinkedIn: en-engineering

ENTRUST Solutions Group, founded in 2002 and based in Warrenville, Illinois, is an engineering and consulting firm with a workforce of over 2,500 employees. The company specializes in providing services across utilities, power delivery, and telecommunications. Within the natural gas sector, ENTRUST focuses on gas utilities and gas transmission, offering a comprehensive suite of services that includes project management, engineering design, and field services. They work closely with investor-owned utilities and midstream operators, ensuring that projects meet regulatory compliance and operational efficiency. Their expertise extends to pipeline safety management, integrity management, and construction oversight, making them a significant contributor to the safe and reliable delivery of natural gas. ENTRUST's commitment to quality and safety is reflected in their extensive experience and the qualifications of their personnel, many of whom have decades of industry experience.

21. KDM Engineering

• Website: kdmengineering.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 97%, India 3%
• Founded year: 2012
• Headcount: 51-200
• LinkedIn: kdm-engineering

KDM Engineering is a private engineering firm based in Chicago, Illinois, founded in 2012. With a workforce of approximately 101 employees, the company specializes in utilities and telecommunications services. KDM Engineering offers a range of engineering solutions, particularly in power distribution and gas distribution design. Their commitment to safety and quality is evident in their project management and engineering practices. KDM has built a reputation for excellence by delivering reliable infrastructure solutions to utility companies and organizations. They focus on natural gas distribution design, providing services such as main and service replacement design, new gas main design, and permitting. Their work supports the operational needs of utility companies, ensuring that infrastructure is both efficient and compliant with regulatory standards. KDM Engineering is also recognized for its commitment to diversity and inclusion within the engineering field, which enhances their approach to problem-solving and project execution.

22. JL Allen Services, Inc.

• Website: jlallen.com
• Ownership type: Private
• Headquarters: Tuscola, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1954
• Headcount: 51-200
• LinkedIn: jlallenservices

JL Allen Services, Inc., founded in 1954 and based in Tuscola, Illinois, is a private pipeline construction company that specializes in the construction of pipeline stations and pipe fabrication. With a workforce of 51-200 employees, the company has established itself as a reliable contractor in the oil and gas sector. Their services include the construction of compressor stations, meter stations, and pump stations, as well as pipe spool and skid fabrication. They offer a full suite of services, including engineering, procurement, and construction (EPC), ensuring that projects are completed on schedule and within budget. JL Allen Services has worked with many operators across the country, demonstrating their capability to handle projects of varying scales. Their commitment to safety is evident in their operational practices, which prioritize the well-being of their employees and the public. This focus on safety, combined with their technical expertise, makes them a significant player in the pipeline construction industry.

23. Pipe Strong, LLC a Member of The 3E Family

• Website: pipestrong.com
• Ownership type: Private
• Headquarters: Schaumburg, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2018
• Headcount: 201-500
• LinkedIn: pipe-strong-llc

Pipe Strong, LLC, a member of The 3E Family, is a private company based in Schaumburg, Illinois, founded in 2018. This company operates as a service provider in the Oil & Gas sector, focusing on pipeline construction and maintenance. They cater to businesses that require reliable infrastructure services, ensuring safety and compliance through a skilled workforce and comprehensive training programs. Pipe Strong offers a range of services including distribution and transmission construction, pipeline integrity inspections, and facilities construction. Their commitment to safety and quality is evident in their operational practices, which prioritize the health and safety of employees and the communities they serve. As a union contractor, they emphasize the importance of a well-trained workforce, which is crucial for maintaining the integrity of natural gas pipelines and related infrastructure.

Natural Gas Companies Insights: Key Companies in Illinois

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