L&I Contractor License Data - General

State of Washington, Labor & Industries contractor license and registration data

Data and Resources

Additional Info

Field Value
Source https://data.wa.gov/resource/m8qx-ubtq
Author Christa Kim
Last Updated May 9, 2026, 01:37 (UTC)
Created July 22, 2025, 20:37 (UTC)
1. L&I Contractor Contractor Data is updated thee times per day: 7:30 a.m., 12:15 p.m., 5:15 p.m.
2. ContractorLicenseNumber field is the unique identifier
3. UBI may have multiple records associated with it
Category Labor
Period of Time 7:30 a.m., 12:15 p.m., 5:15 p.m.
Posting Frequency Daily
harvest_object_id 72f67eec-1123-46bb-9fdf-6d04d8b490c2
harvest_source_id c4128faf-39ff-4aa3-918e-8a395702cab3
harvest_source_title washington-state