Contractor License Lookup
Search contractor license and registration records from official state and local authorities by business name or credential number. Review each result's source and freshness.
StateLicense is independent; confirm important decisions with the issuing authority.
Verify a contractor license
Free public lookup: up to 10 search or verification requests per IP each UTC day.
What you can verify
Results can include the credential number and kind, business or licensee name, status, type or classification, expiration date, issuing authority, and source and record timestamps. Fields vary by source and may be unavailable on a particular record.
Supported jurisdictions
Coverage is limited to the named datasets. Select a local lookup for details and limitations.
Alaska
Statewide Construction Contractors professional licenses
Open lookup →Arkansas
Statewide numbered commercial, residential-builder, and home-improvement or remodeler licenses
Open lookup →Arizona
Statewide active ROC contractor licenses
Open lookup →California
Statewide CSLB contractor classifications
Open lookup →Colorado
Statewide EC electrical and PC plumbing contractor business registrations, including historical and adverse records
Open lookup →Connecticut
Statewide HIC and NHC registrations and MCO licenses, including historical and adverse records
Open lookup →Delaware
Statewide resident and nonresident contractor business licenses
Open lookup →Florida
Construction and electrical contractor datasets
Open lookup →Iowa
Statewide active construction contractor registrations
Open lookup →Illinois
Statewide roofing contractor licenses, including identified historical and adverse records
Open lookup →Minnesota
Statewide residential business contractor licenses and construction contractor registrations
Open lookup →New Jersey
Statewide Home Improvement Business Contractor registrations, including identified historical and adverse records
Open lookup →New York City
DCWP home improvement contractors and DOB construction-trade licenses
Open DCWP lookup →New York State public work
Statewide public-work and covered Article 8 private-project contractor registrations
Open DCWP lookup →Ohio
Statewide commercial electrical, HVAC, hydronics, plumbing, and refrigeration trade credentials and company associations from the active-status roster
Open lookup →Oregon
Statewide active CCB license endorsements
Open lookup →Tennessee
Statewide Board contractor business licenses, including historical statuses
Open lookup →Texas
Six TDLR-regulated contractor categories
Open electrical lookup →Virginia
Current Class A, B, C, and temporary contractor business licenses
Open lookup →Washington
Statewide construction, electrical, plumbing, and elevator contractor records
Open lookup →How contractor verification works
Public source records
StateLicense ingests the covered licensing datasets published by the authorities below.
Normalized lookup
Search by name or verify a number. Common fields are mapped while preserving authority and source context.
Review freshness
Read each result's timestamps and confirm consequential decisions directly with the issuing authority.
Official data sources
- Alaska: CBPL Search and Database Download
- Arkansas: CLB contractor lookup and roster
- Arizona: ROC All Current Contractors posting list
- California: CSLB license check
- Colorado: Colorado DORA credential lookup, Official bulk data
- Connecticut: State Licenses and Credentials, Connecticut eLicense lookup
- Delaware: Delaware Business Licenses dataset
- Florida: DBPR license search
- Iowa: Active Iowa Construction Contractor Registrations
- Illinois: IDFPR Professional Licensing data, IDFPR License Look Up
- Minnesota: DLI license and registration downloads
- New Jersey: New Jersey Consumer Affairs verification, Official bulk data
- New York City: DCWP issued licenses, DOB license information
- New York State public work: Contractor Registry Certificate
- Ohio: OCILB official roster service, OCILB license lookup
- Oregon: CCB active-license dataset
- Tennessee: Contractor and Qualifying Agent dashboard
- Texas: TDLR license search
- Virginia: DPOR regulant lists, DPOR License Lookup
- Washington: L&I contractor verification
Important limitation
StateLicense is not a government agency. We aggregate public licensing information from official authorities. For important legal, compliance, or hiring decisions, confirm current status with the issuing authority.
Contractor license lookup FAQ
How do I check if a contractor is licensed?
Choose a jurisdiction and enter a license number, or search by business name. Compare the returned identity, status, type, dates, and source with the contractor's details. Confirm important decisions with the issuing authority.
Can I search a contractor by company name?
Yes. Use the Business name tab to find possible records. Similar names can refer to different businesses, so verify the number and other identifying details.
Is contractor license information public?
The licensing authorities listed here publish records that StateLicense makes searchable. Available fields and disclosure rules vary by source.
How do I verify a California contractor?
Search a CSLB license number or business name, review the status and classification, then confirm the current record directly with the California Contractors State License Board.
What does an inactive contractor license mean?
It means the returned record is not marked active in the source data. The reason and legal effect depend on the authority and license type; inspect the official record before deciding whether work is allowed.
Is StateLicense an official government website?
No. StateLicense is an independent lookup and API service that aggregates public licensing information from official authorities.
How current is StateLicense data?
Refresh schedules vary by source. Check the source and record timestamps on each result and the expected cadence on the methodology page. Confirm current status with the issuing authority for important decisions.
Can I verify contractors across multiple states?
Yes. The lookup supports the listed datasets. New York has NYC licenses and a separate statewide public-work registration; other states also cover specific credential categories rather than every contractor.
Is there an API for contractor license verification?
Yes. The StateLicense API supports search and license-number verification across the same covered sources. See the API overview and documentation for request and response details.