About SunEfficiency
An independent directory of solar installers across the United States.
SunEfficiency is a free, independent directory that helps homeowners and businesses find solar panel installers in their area. We currently list 3351 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:
- Relevance review — we check each listing's own website to confirm it reads as 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.
What we do not check
These are automated checks on public information, not an accreditation programme. We do not verify a company's licensing, insurance, certifications, ownership, or the service areas it actually covers, and a listing here is not an endorsement or a recommendation. Always confirm licensing and insurance directly with the company, and with your state's licensing board, before hiring anyone.
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 No directory is ever perfect — if you spot an error or an outdated listing, please let us know.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.