Data sources
Everything on this site comes from official state licensing agencies. We download each state's public file once a day and show it as-is. We don't add ratings or opinions, and we don't buy data from brokers.
Alabama
| Agency | Alabama Licensing Board for General Contractors |
|---|---|
| Dataset | Licensing Board for General Contractors roster (commercial) |
| License | Public record |
| What it covers | Commercial general contractors licensed by the Alabama board, including many based in other states. Residential home builders are licensed by a different board and are not included. The roster has no insurance or bond details. |
| Issue dates | Not published in the roster. |
| Records | 8,848 (8,848 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://licensesearch.alabama.gov/genconbd |
California
| Agency | Contractors State License Board (CSLB) |
|---|---|
| Dataset | CSLB Master License Data (cslb.ca.gov Data Portal) |
| License | Public record (Business & Professions Code §27) |
| What it covers | All current California contractor licenses, active and suspended, in every classification. |
| Issue dates | Original license issue date from the CSLB. |
| Records | 243,757 (230,982 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx |
Connecticut
| Agency | Connecticut Department of Consumer Protection (DCP) |
|---|---|
| Dataset | DCP home improvement, new home construction and major contractor registrations (data.ct.gov) |
| License | Public record |
| What it covers | Connecticut home improvement, new home construction and major contractor registrations. The state file has no phone, insurance or bond details. |
| Issue dates | Registration date from the DCP. |
| Records | 42,498 (30,036 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx |
District of Columbia
| Agency | DC Department of Licensing and Consumer Protection (DLCP) |
|---|---|
| Dataset | DLCP Basic Business Licenses, contractor categories (Open Data DC) |
| License | Creative Commons Attribution 4.0 (CC BY 4.0) |
| Attribution | Source: DC Department of Licensing and Consumer Protection, Open Data DC (CC BY 4.0) |
| What it covers | Contractors licensed to work in the District of Columbia (many are based in Maryland or Virginia). The file has no phone, insurance or bond details. |
| Issue dates | License issue date from the DLCP. |
| Records | 20,473 (5,769 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://opendata.dc.gov/datasets/85bf98d3915f412c8a4de706f2d13513 |
Florida
| Agency | Florida Department of Business and Professional Regulation (DBPR), Construction Industry Licensing Board |
|---|---|
| Dataset | DBPR construction industry public records extract |
| License | Public record (Florida Chapter 119) |
| What it covers | Certified and registered Florida contractors that are active, inactive or suspended. Florida's public file has no phone, insurance or bond details. |
| Issue dates | Original licensure date from the DBPR (sometimes blank). |
| Records | 109,206 (96,807 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://www.myfloridalicense.com/wl11.asp |
Iowa
| Agency | Iowa Department of Inspections, Appeals, and Licensing (DIAL) |
|---|---|
| Dataset | Iowa contractor registrations (Iowa open data) |
| License | Creative Commons Attribution 4.0 (CC BY 4.0) |
| Attribution | Source: Iowa Department of Inspections, Appeals, and Licensing, via the Iowa Data Hub (data.iowa.gov), licensed CC BY 4.0 |
| What it covers | Contractors registered with the State of Iowa. Iowa registers contractors; it does not license them by trade. The trade shown is the contractor's own description of its main work. |
| Issue dates | Registration date from the state. |
| Records | 17,898 (17,792 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://data.iowa.gov/ |
Illinois
| Agency | Illinois Department of Financial and Professional Regulation (IDFPR) |
|---|---|
| Dataset | IDFPR Professional Licensing: Roofing Contractor licenses (data.illinois.gov) |
| License | Open Database License (ODbL) v1.0 |
| Attribution | Contains information from the Illinois Department of Financial and Professional Regulation (IDFPR) Professional Licensing dataset, made available under the Open Database License (ODbL) v1.0: https://opendatacommons.org/licenses/odbl/1-0/ |
| What it covers | Illinois roofing contractor licenses only (all statuses). The state file has no phone, insurance or bond details. |
| Issue dates | Original license date from the IDFPR. |
| Records | 21,145 (4,763 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://online-dfpr.micropact.com/lookup/licenselookup.aspx |
Minnesota
| Agency | Minnesota Department of Labor and Industry (DLI) |
|---|---|
| Dataset | DLI residential contractor licenses (CCLD nightly export) |
| License | Public record |
| What it covers | Minnesota residential building contractors, remodelers and roofers licensed by the DLI. The file has no insurance or bond details. |
| Issue dates | License date from the DLI. |
| Records | 21,735 (11,709 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://www.dli.mn.gov/license-and-registration-lookup |
New York City
| Agency | NYC Department of Consumer and Worker Protection (DCWP) |
|---|---|
| Dataset | DCWP Home Improvement Contractor licenses (NYC Open Data). New York City only, not New York State |
| License | NYC Open Data terms of use |
| Attribution | Source: NYC Department of Consumer and Worker Protection, NYC Open Data |
| What it covers | Home improvement contractors licensed by New York City. This is NYC only. New York State has no statewide contractor license list. |
| Issue dates | License creation date from the DCWP. |
| Records | 18,931 (13,385 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://data.cityofnewyork.us/d/w7w3-xahh |
Oklahoma
| Agency | Oklahoma Construction Industries Board (CIB) |
|---|---|
| Dataset | CIB Roofing Contractor Registration public verification service |
| License | Public record of the State of Oklahoma |
| What it covers | Roofing contractor registrations only (all statuses). Electrical, plumbing and mechanical licenses are not included. |
| Issue dates | The state does not publish an original issue date for roofing registrations. |
| Records | 5,489 (1,844 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://verifyroofing.cib.ok.gov/roofing/search |
Oregon
| Agency | Oregon Construction Contractors Board (CCB) |
|---|---|
| Dataset | CCB Active Licenses (data.oregon.gov, dataset g77e-6bhs) |
| License | Public Domain (U.S. Government) |
| What it covers | All actively licensed construction contractors. The state file lists active licenses only. |
| Issue dates | Original registration date from the CCB. |
| Records | 45,699 (45,699 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://search.ccb.state.or.us/search/ |
Virginia
| Agency | Virginia Department of Professional and Occupational Regulation (DPOR), Board for Contractors |
|---|---|
| Dataset | DPOR Board for Contractors regulant lists |
| License | Public record (Virginia DPOR) |
| What it covers | Currently licensed Virginia contractors (Class A, B and C). Virginia's list has no phone, insurance, bond or status details. Every license on the list is current. |
| Issue dates | Not published in the regulant list. |
| Records | 54,241 (54,241 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://www.dpor.virginia.gov/LicenseLookup |
Washington
| Agency | Washington State Department of Labor & Industries (L&I) |
|---|---|
| Dataset | L&I Contractor License Data: General, Insurance and Bond (data.wa.gov, datasets m8qx-ubtq, ciwg-agsx, bzff-4fmt) |
| License | Open Data Commons Public Domain |
| What it covers | Registered contractors in every status (active, expired, suspended and so on), plus their insurance and bond filings. |
| Issue dates | Effective date of the current license term. It resets on renewal, so it is not always the first-ever license date. |
| Records | 161,164 (75,912 active) |
| Last checked | Oct 4, 2026 |
| Official lookup | https://secure.lni.wa.gov/verify/ |
How we collect it
- We use official open-data APIs first. Where a state only offers a lookup service, we make one slow pass a day (at least 2 seconds between requests) and follow its robots.txt.
- Counties come from the state when it lists them. Otherwise we take the county from the business ZIP code, using U.S. Census ZIP-to-county files.
- "First seen by us" is the first day our daily check found the license. It is not the state's issue date.
- We never publish street addresses, owner names beyond the licensed business name, or anything a state marks confidential.
Spot a mistake? Tell us here. The state's own record always wins. If it's wrong there, contact the agency listed above.