Methodology
We route to official boards because contractor licensing is fragmented.
One state may license general contractors statewide; another may license only certain trades; another may leave much of the process to cities and counties. We avoid pretending one national contractor database exists.
Quick answer
How Proof of Contractor chooses official license sources and confidence labels.
Confidence labels
High means a direct official state lookup is listed. Medium means the source is official, but the user may need trade-specific or local verification as a second step.
Cite this page
Use this page as a public web reference, not an official agency record. The linked official source remains the final authority.
Proof of Contractor. "Methodology | Proof of Contractor". https://www.proofofcontractor.com/methodology/. Reviewed Jul 2026.
Source and citation notes