Illinois is home to a thriving industry of energy efficiency companies, committed to creating smarter and lower-cost energy solutions. These businesses operate across various sectors - from utility consulting to solar planning, aiming to help both businesses and homeowners optimize their energy usage while minimizing environmental impact. Offerings range from energy-efficient heating and cooling systems to comprehensive energy audits. Looking towards the future, we expect these innovators to continue driving sustainable energy solutions in Illinois and beyond, playing a key role in the fight against climate change.


Top 20 energy efficiency companies in Illinois

1. Navigate Power

  • Website: navigatepower.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2012
  • Headcount: 1001-5000
  • Latest funding type: Debt Financing
  • LinkedIn

Navigate Power is an energy consulting firm that helps businesses optimize their energy usage and reduce costs. They offer services such as energy procurement, efficiency audits, and bill auditing and refunds.


2. Elevate

  • Website: elevatenp.org
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2000
  • Headcount: 51-200
  • Latest funding type: Grant
  • LinkedIn

Elevatenp.org is a national organization headquartered in Chicago that offers innovative services in energy efficiency, solar planning, water safety, healthy homes, and building portfolio consulting. They work with governments, public agencies, property owners, nonprofits, and contractors to provide smart electricity options, lead abatement, indoor air quality, and workforce development.


3. Enertech Global, LLC

EnertechUSA is a company that specializes in energy-efficient solutions for heating, cooling, and hot water generation. They offer innovative products such as air-to-water heat pumps and geothermal systems. With a focus on sustainability and quality, EnertechUSA aims to make energy independence accessible through their exceptional products and support.


4. Sumac

  • Website: sumacinc.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2002
  • Headcount: 11-50
  • LinkedIn

Sumac Inc offers services in architecture, engineering, construction management, and owner's representation. They specialize in sustainable and energy-efficient solutions for various sectors including aviation, commercial, retail, corporate offices, data centers, education, healthcare, and residential. Sumac Inc is committed to diversity and sustainability.


5. CDP Energy

  • Website: cdpenergy.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2000
  • Headcount: 51-200
  • LinkedIn

CDP Energy is a company that offers a range of energy solutions including power distribution units, solar products, energy storage, data center solutions, engineering services, and training through their Academy. They provide protection equipment, UPS systems, batteries, and more. With a focus on energy efficiency and sustainability, CDP Energy caters to various customer groups.


6. Prairie Power, Inc.

  • Website: ppi.coop
  • Headquarters: Springfield, Illinois, United States
  • Headcount: 51-200
  • LinkedIn

PPI.coop is a member-owned, not-for-profit electric generation and transmission cooperative. They specialize in providing affordable and reliable power supply solutions to their customers. With a strong focus on environmental stewardship, they offer energy efficiency programs, renewable energy options, and support for electric vehicles.


7. Edelman Inc.

Edelman Inc. is a company that offers a range of services including heating, electrical, solar energy, plumbing, and indoor air quality solutions. With a team of trained professionals, they provide installation, repair, and maintenance services for residential and commercial customers. They also offer financing options for their products and services, ensuring that customers can meet their home needs while paying over time.


8. Hovey Energy, LLC

Hovey Energy is a company focused on selling energy solutions for a sustainable future.


9. Greencells

GreenCells.org is a company that offers sustainable energy solutions. They specialize in renewable energy technologies such as solar power, wind power, and energy storage. Their aim is to provide clean and reliable energy sources to both residential and commercial customers.


10. Econergy

  • Website: econergy.net
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2018
  • Headcount: 11-50
  • LinkedIn

Econergy is a company that specializes in building energy coalitions and helping businesses and schools transition to renewable energy. They offer a simple and cost-effective solution for saving on electric bills and empowering their partners to control their energy future.


11. Pro Energy Trade Inc

ProEnergyTrade is a company involved in the distribution of energy-efficient products. Their focus is on providing energy savings in the public and private sector through the provision of innovative solutions.


12. Verde Solutions LLC

Verde Solutions is a company that specializes in providing comprehensive energy solutions to diverse clients. They offer services such as solar energy, electric vehicle charging systems, commercial energy storage, and HVAC solutions. With a team of innovative experts in engineering and project management, Verde Solutions ensures timely delivery of projects within budget. Their focus on green energy and sustainability makes them a leader in turnkey sustainable energy solutions.


13. Energy CX

  • Website: energycx.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2005
  • Headcount: 11-50
  • LinkedIn

Energy CX is a comprehensive energy solutions company that offers customized solutions for clients' energy needs. They provide services such as electricity and natural gas procurement, energy star benchmarking, demand response, and utility relief.


14. Leading Solar Solutions

Leading Solar Solutions is a company committed to providing alternate energy solutions through the research, installation, monitoring, testing, and support of EV Chargers, Solar Panels, and LED Retrofits, for a more sustainable future.


15. Sun Collectors

Sun Collectors is a local solar energy company providing residential and commercial solar systems. They offer solar panel installation and maintenance services, tax incentives, and help reduce electric bills.


16. Retrofit Culture

Retrofit Culture offers sustainable home design solutions including energy efficient retrofits, low carbon footprint designs, and eco-friendly materials sourcing.


17. Options.Energy

Options.Energy is an advisory firm that provides renewable energy solutions to businesses of all sizes. They assist companies in developing, financing, and deploying sustainable energy plans that will bring a positive ROI to their businesses.


18. All Tech Energy, Inc.

All Tech Energy is an electrical contractor based in Schaumburg, IL that offers turnkey electrical and lighting solutions to institutions, commercial and industrial businesses, with a specialization in providing energy-efficient solutions.


19. Scale Down

  • Website: scaledown.me
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2013
  • Headcount: 11-50
  • LinkedIn

Scaledown.me is a digital platform that assists companies in reducing their carbon footprint and promoting sustainability through data-driven solutions.


20. Illinois Solar Decathlon

Illinois Solar Decathlon is a nonprofit organization dedicated to engineering a sustainable future through clean energy and green building. They focus on innovative projects like ADAPTHAUS and RENU-House. Join them to be a part of their vision.


Want to find more energy efficiency companies?


If you want to find more companies that offer solutions compromising of audits, efficient heating and cooling systems you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
  • Contact data: Who are the owners and CEO's? What are their emails and phone numbers?
  • Financials: How do these companies perform financially? What are their revenues and profit margins?

...and a lot more!