US Roofing Contractors
U.S. Location Dataset // 39,733

39,733 US roofing contractors merged from the manufacturer certification programs and the national trade association, with every certification a contractor holds accumulated onto a single row. That last point is what makes the file useful: a contractor certified by both GAF and Owens Corning keeps both, so the certificationCount and topTier columns tell you immediately who the serious operators are. The breakdown includes 6,357 Owens Corning Preferred contractors, 5,798 CertainTeed ShingleMasters, 5,710 GAF Certified and 1,410 GAF Certified Plus, plus Atlas and NRCA members, with per-manufacturer tier columns so you can filter on any program. Manufacturer certification is the closest thing roofing has to a quality signal, because it requires licensing, insurance and workmanship standards, so it is the field that separates established contractors from the storm-chasing transients. Roofing supply distributors, manufacturers building loyalty programs, insurers, lead generators and private equity buyers consolidating roofing all work from certification tiers. Refreshed weekly.

All 39,733 records, as published — the complete set rather than a sample. That matters most for coverage and gap questions: put together the same list from partial searches and every location you miss reads as a gap that is not there, so the answer is wrong rather than merely late. Assembling the U.S.-wide coverage by hand also means one query per area against sources that cap what they return per search.