This is the 2019 list of Top Solar Contractors completing work in Washington. The kilowatts listed as being installed in the state reflect only kilowatts installed in Washington in 2018. Companies listed on this state list could be headquartered in other states, participate in any market (residential, commercial, utility) and provide any installation service (EPC, developer, rooftop solar installer, installation subcontractor, electrical subcontractor).

The listed kilowatts installed by each company in Washington could come from installations in all markets (residential, commercial, utility) but only within Washington state lines.

The companies below are a segmented portion of the overall 2019 Top Solar Contractors list, organized by kilowatts (DC) installed in 2018.

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