The Colorado energy efficiency industry is a dynamic landscape of organizations providing sustainable energy solutions, from electric cooperatives to renewable energy providers. These companies offer a range of services and products that play a key role in advancing the state's clean energy transition. From providing electricity to residential and commercial customers, integrating renewable energy sources into the grid, offering energy-efficient appliances, to initiating green power programs, these companies are shaping a sustainable future. As renewable energy technology evolves, these firms continue to innovate, aligning with Colorado's commitment to carbon neutrality.


Top 23 energy efficiency companies in Colorado

1. CORE Electric Cooperative

  • Website: core.coop
  • Headquarters: Sedalia, Colorado, United States
  • Founded: 1938
  • Headcount: 201-500
  • LinkedIn

CORE is an energy company that offers a variety of services to residential and commercial customers. They provide electricity, manage billing and payments, and offer outage support. With a focus on sustainability, CORE is committed to promoting renewable energy and educating the community about energy efficiency.


2. La Plata Electric Association

  • Website: lpea.coop
  • Headquarters: Durango, Colorado, United States
  • Founded: 1939
  • Headcount: 51-200
  • LinkedIn

La Plata Electric Association (LPEA) is a cooperative that provides electricity services to the community in Durango and Pagosa Springs, Colorado. They offer a range of energy-efficient solutions, including heat pumps, heat pump water heaters, electric thermal storage, and electric vehicles. LPEA also provides information on solar energy and offers rebates for energy-saving appliances and EV chargers.


3. Poudre Valley REA

  • Website: pvrea.coop
  • Headquarters: Fort Collins, Colorado, United States
  • Founded: 1939
  • Headcount: 51-200
  • LinkedIn

PVREA is a renewable energy cooperative that offers green power programs, rooftop solar installations, and larger solar projects. They are committed to a goal of achieving 80% renewable energy by 2030.


4. Green Dragon

  • Website: greendragon.com
  • Headquarters: Denver, Colorado, United States
  • Founded: 2009
  • Headcount: 201-500
  • Latest funding type: Debt Financing
  • LinkedIn

Green Dragon is a company that offers sustainable and eco-friendly solutions for businesses. They provide a wide range of products and services designed to help companies reduce their carbon footprint and operate more sustainably.


5. Holy Cross Energy

  • Website: holycross.com
  • Headquarters: Glenwood Springs, Colorado, United States
  • Founded: 1939
  • Headcount: 51-200
  • LinkedIn

Holy Cross Energy is an energy company that offers sustainable energy solutions for residential and commercial customers. They provide a range of services including energy efficiency programs, renewable energy options, and rebate programs.


6. Solid Power, Inc.

  • Website: solidpowerbattery.com
  • Headquarters: Louisville, Colorado, United States
  • Founded: 2011
  • Headcount: 51-200
  • Latest funding type: Post Ipo Equity
  • LinkedIn

Solid Power is an industry-leading developer of all-solid-state rechargeable battery technology for the electric vehicle market. Their batteries replace the flammable liquid electrolyte with a proprietary sulfide solid electrolyte, making them safer, more stable at high temperatures, and offering higher energy. They provide a lower cost alternative to traditional lithium-ion batteries.


7. United Energy Trading LLC

United Energy Trading is a leading provider of sustainable energy solutions. They offer Green-e Certified gas in California, helping customers reduce carbon footprints and improve ESG scores. Their comprehensive and adaptable bundled model drives the clean energy movement, offering both private and public clients cleaner energy solutions that fit their needs.


8. Crimson Renewable Energy Holdings, LLC

Crimson Renewable Energy is a leading producer of ultra-low carbon biodiesel in California. They specialize in converting waste materials, such as cooking oil, into sustainable and cleaner-burning diesel substitutes. With a commitment to local sustainable energy development, they offer tailored contract pricing, robust logistics, and meet client needs with their innovative biodiesel solutions.


9. ICAST (International Center for Appropriate & Sustainable Technology)

  • Website: icastusa.org
  • Headquarters: Lakewood, Colorado, United States
  • Founded: 2002
  • Headcount: 11-50
  • LinkedIn

ICAST is an organization focused on energy and water conservation measures, with a mission to provide economic, environmental, and social benefits to communities. They offer services such as demand-side management, retrofits for multifamily buildings, and solar services. They also provide financing opportunities and consulting services.


10. PrimeStar Solar

  • Website: primestarsolar.com
  • Headquarters: Arvada, Colorado, United States
  • Founded: 2006
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

Primestarsolar.com is a company that offers renewable energy solutions through the installation and maintenance of solar panels. They provide services to both residential and commercial clients, helping them reduce their carbon footprint and save on energy costs.


11. GreenCore

GreenCore is an Electrical Vehicle (EV) Charging Station developer that specializes in 4x faster construction of charging sites in locations that make sense for EV drivers. Their proprietary “universal” infrastructure system significantly reduces project timelines and onsite construction time.


12. Permit Partner

  • Website: nordicasia.net
  • Headquarters: Centennial, Colorado, United States
  • Founded: 2010
  • Headcount: 51-200
  • LinkedIn

Nordic Asia is a leading provider of solar design and engineering solutions for installers around the world. They aim to help businesses reduce their carbon footprint and energy costs and move towards building a sustainable future.


13. GeoSolar Technologies

  • Website: geosolarplus.com
  • Headquarters: Denver, Colorado, United States
  • Founded: 2020
  • Headcount: 11-50
  • Latest funding type: Seed
  • LinkedIn

GeoSolarPlus is a company that offers SmartGreen™ Homes powered by Nature's Energy. Their homes are all-electric and feature air purification and heating/cooling systems.


14. Airius

  • Website: airius.bg
  • Headquarters: Longmont, Colorado, United States
  • Headcount: 51-200

Airius is a US-based company offering energy-efficient fan systems for businesses worldwide. Their products include air purification and destratification systems that reduce energy usage and carbon emissions while improving air quality.


15. Echo3 Energy

  • Website: echo3.energy
  • Headquarters: Denver, Colorado, United States
  • Founded: 2017
  • Headcount: 11-50
  • LinkedIn

Echo3 Energy is a company that specializes in renewable energy solutions. They offer products and services to help customers reduce their carbon footprint and save money on energy bills.


16. RES Supply

  • Website: ressupply.com
  • Headquarters: Parker, Colorado, United States
  • Headcount: 11-50

RES Supply provides renewable energy systems and solutions such solar panels, inverters, batteries, monitoring equipment, and electrical distribution parts.


17. Thermal Craft Insulation

Thermalcraft is a company that specializes in providing insulation solutions for residential and commercial buildings. They offer a wide range of insulation materials and services to enhance energy efficiency and reduce costs.


18. Southwest Energy Efficiency Project (SWEEP)

  • Website: swenergy.org
  • Headquarters: Boulder, Colorado, United States
  • Founded: 2001
  • Headcount: 11-50
  • LinkedIn

SWEEP (Southwest Energy Efficiency Project) is an organization that supports and advises government agencies on energy efficiency policy and programs. They provide funding support, publish reports, and offer workshops and webinars on various energy-related topics.


19. Clean Energy Authority

CleanEnergyAuthority.com is a provider of solar energy news, education, training programs, and resources to customers across the United States.


20. Rmi

  • Website: rmi.org
  • Headquarters: Boulder, Colorado, United States
  • Founded: 1982
  • Headcount: 201-500
  • Latest funding type: Grant
  • LinkedIn

RMI.org is an organization dedicated to transforming the global energy system to reduce greenhouse gas emissions. They work on various programs and initiatives such as carbon-free buildings, electricity, and transportation. RMI aims to bring about sustainable solutions and promote climate-aligned industries.


21. IKAV Energy Inc

  • Website: ikav.com
  • Headquarters: Durango, Colorado, United States
  • Founded: 2020
  • Headcount: 201-500
  • LinkedIn

IKAV is an international asset management group offering a comprehensive suite of services including asset management, technical & engineering expertise, development & EPCM, operational maintenance, and financial expertise.


22. Mountain View Electric Assn. Inc.

  • Website: mvea.coop
  • Headquarters: Limon, Colorado, United States
  • Founded: 1941
  • Headcount: 51-200
  • LinkedIn

MVEA is an electric cooperative that provides energy services to residential and commercial customers. They offer a range of services including tree trimming, energy efficiency rebates, and renewable energy programs. MVEA aims to serve the community with reliable and affordable electricity.


23. Highline Electric Association

  • Website: hea.coop
  • Headquarters: Holyoke, Colorado, United States
  • Founded: 1938
  • Headcount: 51-200
  • LinkedIn

Highline Electric Association is a Rural Electric Cooperative providing services in Northeastern Colorado and Southwestern Nebraska. We prioritize Integrity, Accountability, Innovation, and Commitment to our communities.


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