California contractor and public works data

Free lookups built on California public records — contractor licenses from the Contractors State License Board and public works projects from the Department of Industrial Relations — updated daily by Atriam.

Contractor license lookup
Search any California license by number or business name, with each contractor's public works history.
Public works by agency and county
Every awarding body with DIR-registered projects: awards by year, types of work and the contractors it hires.
Guide: California contractor licenses
How CSLB licensing works and what the statewide numbers look like.
Guide: California public works
DIR registration, project notices and where the work is.