For the 2021 Top Solar Contractors list, individual state and territory lists were determined by kilowatts installed within each specific jurisdiction. All 50 states and D.C., Guam and Puerto Rico have individual lists, linked below. Companies featured on each state/territory list could have installed kilowatts in any market (residential, commercial, utility) but only within that specific state/territory lines. Click the state/territory lists below to see which contractors were the top solar installers in each area.

The lists below are segmented portions of the overall 2021 Top Solar Contractors list, organized by kilowatts (DC) installed in 2020.

For more information on Solar Power World‘s annual Top Solar Contractors list, visit our Top Solar Contractors landing page.