There's a difference between companies who are committed to using renewable energy as an end-user, and companies involved in generating renewable energy. The latter might also include related industries in the supply chain such as manufacturing wind turbines or silicon photovoltaic cells.
The resources on this page are divided into two categories. The first are resources for finding companies producing renewable energy. Energy producers can be sorted into two main groups. Utility scale generation is created by large independent power producers and utility companies usually in agreement with a state in order to meet that state's renewable portfolio standards. Distributed renewable energy generation is when landowners generate their own energy and sell surplus energy to the grid. The ability to sell energy depends on regional laws (for more information, see the "Regulations, Standards, and Incentives" section of this guide). Specific information about costs, markets, and distribution vary by the type of energy being generated.
The second section of resources on this page contain suggested links for finding companies committed to using renewable energy as an end-user.
There is generally more information available about publicly traded companies because they are required to file reports with the Securities and Exchange Commission (SEC). The SEC recently requested public input on modifying their climate change disclosure policies, which would impact all public companies, not just those in the energy sector.1 Private companies are usually not legally required to disclose information, making company research more difficult. More details on general company research can be found in our guide:
Renewable energy includes wind, solar, hydro, biomass, and geothermal power industries. Because these industries function and are regulated differently, it can be challenging to find lists of companies for these industries. Additionally, in the United States, companies (like a solar panel manufacturer) are registered at the state level. To find top companies in a particular industry, many business intelligence databases allow you to generate lists on a variety of criteria, such as revenue or company size. However, renewable energy companies fall under multiple industry classification codes, so you will need to compile a list of relevant NAICS (North American Industry Classification System) codes. Industry associations and trade publications are also sources for finding company information.
Below are some freely available government resources that compile renewable energy company information.
The following links are to websites related to finding information about companies that use renewable energy as an end-user.