California Contractor License Lookup
Check the official license record
Open official license lookupSearch on the licensing agency’s website. LicenseCalendar links to the official portal and does not collect or display individual license records.
Verified Oct 25, 2026 · 1 official source
What does the record show?
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
Search guidance
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 do I report unlicensed activity?
Official reporting instructions
Official reporting instructions
Reporting Unlicensed ActivityOfficial 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
Which official sources support this guide?
Verified Oct 25, 2026 · 2 official sources
Official sources and verification (7)
Last verified Oct 25, 2026. Each quotation supports the corresponding published value.
https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx
Check a Contractor License or Home Improvement Salesperson (HIS) RegistrationOfficial source
Last verified Oct 25, 2026
License status and complaint disclosure.
License status and complaint disclosure.
including complaint disclosure. […] Enter the contractor license number to check the status of their license.Official source
Last verified Oct 25, 2026
https://www.cslb.ca.gov/consumers/report_unlicensed_activity/How_Can_I_Report_Unlicensed_Contractors.aspx
Reporting Unlicensed ActivityOfficial source
Last verified Oct 25, 2026
CSLB’s lookup verifies contractor and Home Improvement Salesperson information, including complaint disclosure.
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
Last verified Oct 25, 2026
Search by contractor license number or contractor business name to check license status.
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
Last verified Oct 25, 2026
California contractor license numbers have no letters and no more than 8 digits.
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
Last verified Oct 25, 2026
Complete the SWIFT Lead Referral form to report unlicensed activity on an active job site.
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
Last verified Oct 25, 2026
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Last verified Oct 25, 2026.
Official sources (2)
Not legal or tax advice. Confirm with the official agency before filing.