About SunEfficiency

SunEfficiency is a free, independent directory that helps homeowners and businesses find solar panel installers in their area. We currently list 3368 solar companies across the United States, organized by state and searchable by name or city.

What we do

Choosing a solar installer is one of the bigger home-improvement decisions a household can make, and the options are often hard to compare. We bring installers together in one place so you can browse who serves your state, see their contact details and ratings, and reach out directly. We do not sell your information and we are not a lead broker — when you find a company you like, you contact them yourself.

How we build our listings

Our listings are compiled from publicly available business information and mapping data, then run through our own validation process:

• Verification — we confirm that each listing is genuinely a solar installer, not an unrelated business that happened to match a search.
• Link checking — we regularly test company websites and remove or flag dead, parked, or redirected links.
• De-duplication — we merge duplicate entries so each company appears once per service area.

We update the directory on an ongoing basis as we add new states and refresh existing data. No directory is ever perfect — if you spot an error or an outdated listing, please let us know.

Who runs this site

SunEfficiency is built and operated by XmarkBuilds, an independent web development project. We are not affiliated with, endorsed by, or sponsored by any of the companies listed in this directory. Listings are provided for free and inclusion is not a paid placement unless explicitly marked as featured.

New to solar?

If you are still researching whether solar is right for you, start with our Solar Energy Guide — a plain-English overview of how solar works, what it costs, and the data behind its benefits.

Questions, corrections, or business inquiries? Reach us at [email protected] or through our contact page.