California contractor license lookup
Look up a license
Look up a license with the agency
Check a Contractor License or Home Improvement Salesperson (HIS) RegistrationOfficial source
What the record shows
License status and complaint disclosure.
including complaint disclosure. […] Enter the contractor license number to check the status of their license.Official source
Report unlicensed activity
Official reporting instructions
Reporting Unlicensed ActivityOfficial source
License lookup guidance
CSLB’s lookup verifies contractor and Home Improvement Salesperson information, including complaint disclosure.
Look up a contractor license or Home Improvement Salesperson (HIS) registration to verify information, including complaint disclosure.Official source
License lookup guidance
Search by contractor license number or contractor business name to check license status.
Enter the contractor license number to check the status of their license. Enter the Contractor Business Name to check the status of their license.Official source
License lookup guidance
California contractor license numbers have no letters and no more than 8 digits.
A California contractor license number doesn't contain alphabetic characters. Each contractor's plastic pocket license will show the respective license number. Begin entry of your license number at the left position and don't exceed 8 digits in the license number.Official source
How to report unlicensed activity
Complete the SWIFT Lead Referral form to report unlicensed activity on an active job site.
about unlicensed activity on an active job site is by completing the SWIFT Lead Referral form.Official source