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Sac Valley Research

What 232,502 contractor licenses say about California construction.

We analyze the Contractors State License Board's public licensing file every active, CLEAR-status license in California and publish what we find. Every study below includes its methodology and a downloadable dataset, free to reuse with attribution (CC BY 4.0).

Dataset snapshot: 2026-06-10 · Source: CSLB public records

For journalists and researchers

All findings are reproducible from CSLB public records, and each study page links its underlying CSV. You're welcome to cite or republish any figure with a link to the study. Questions or custom cuts of the data: contact us.