Washington Contractor License Lookup & Verify (L&I)

Pain points

• Verifying a Washington contractor on the L&I 'Verify a Contractor' portal is one slow manual lookup at a time.
• The portal isn't structured for compliance workflows, subcontractor vetting, or CRM enrichment.
• Checking status, license type, and expiration across many licensees by hand doesn't scale.

What we solve

• Verify any Washington L&I contractor or tradesperson by license number or business/principal name — one search.
• Returns license type, status, effective & expiration dates, city, and principal name from the official registry.
• Enrich a license number or name into a full structured record; pay per match, empty searches free.

Summary

Look up and verify any Washington State contractor or tradesperson from a single search — type an L&I contractor registration number or a business/principal name and get back the license type, status, effective and expiration dates, city, and principal name, straight from the official Washington L&I open-data registry. Built for fast verification, compliance checks, subcontractor vetting, and enriching a license number or name into a structured record.

Who it's for

• GCs and hiring managers vetting Washington subcontractors
• Insurance underwriters and lenders running KYC on contractors
• Compliance teams and marketplaces verifying L&I registrations
• RevOps and BD teams enriching contractor records

How to use

Set the input, run the actor, and collect results from the run's dataset (export to JSON/CSV/Excel, or pull via the Apify API). Example input:

{
  "query": "construction",
  "maxResults": 25
}

See Inputs below for every available field.

What you get

One row per record:

Field	Description
state	Always 'WA' for this actor
license_number	L&I contractor registration / license number
business_name	Licensed business name
person_name	Primary principal / owner name
license_type	L&I license type (e.g. Construction Contractor)
status	License status (e.g. ACTIVE, EXPIRED, RE-LICENSED)
issue_date	License effective date
expiration_date	License expiration date
city	Business city
address	Business street address
zip_code	ZIP code
phone	Business phone (when published)
matched_by	Which search surfaced this match: 'license_number' or 'business_name'
source_url	Link to the official L&I verification portal

Sample:

{
  "state": "WA",
  "license_number": "ECOSTSC758NN",
  "business_name": "!ECO STAR C G CONSTRUCTION LLC",
  "person_name": "GUERRERO MARTINEZ, CARLOS I.",
  "license_type": "CONSTRUCTION CONTRACTOR",
  "status": "ACTIVE",
  "issue_date": "2025-08-15T00:00:00.000",
  "expiration_date": "2027-08-15T00:00:00.000",
  "city": "VANCOUVER",
  "address": "2420 COLUMBIA HOUSE BLVD #311",
  "zip_code": "98661",
  "phone": "5039573452",
  "matched_by": "business_name",
  "source_url": "https://secure.lni.wa.gov/verify/"
}

Inputs

Field	Required	Type	Default	Description
query	yes	string	"construction"	A Washington L&I contractor license number, business name, or principal/owner name to verify or search. Searches by exact license number and by business-name substring.
maxResults	no	integer	50	Cap on matches returned (bounds cost).
proxyConfiguration	no	object	{"useApifyProxy": false}	Optional. The Washington L&I open-data API is reachable directly; a proxy is not needed.

Pricing (Pay Per Event)

You pay per result (dataset-item) — no charge for empty runs. Example: 100 verified license records at $0.004/result ≈ $0.40.

Illustrative — the final per-result price is set at publish time. Apify platform usage (compute) is billed separately per your plan.

Use cases

• License verification — confirm a Washington contractor's type, status, and expiration before hiring or onboarding.
• Record enrichment — turn a license number or name into a full structured record for a CRM, marketplace, or vetting workflow.
• Compliance checks — pull authoritative L&I data on demand for audits and due diligence.
• Lender / insurer due diligence — verify a contractor's standing straight from the state registry.

Why this actor

• Straight from the official Washington L&I open-data registry — authoritative, not a stale third-party copy.
• Search by license number or business/principal name; results deduped by license #.
• Pay per match; searches with no results are free.

Limitations & updates

Covers Washington's L&I contractor-registration public registry only. Results reflect the published open-data snapshot (refreshed on business days) and change as it updates. A name search matches the business-name index; runs are bounded (default 50 results) — refine a broad name to narrow it. Bond, workers-comp, and insurance details live in separate L&I datasets and are not joined in this version (returned null); county and some fields are not published for every record.

FAQ

Where does the data come from?

The official Washington State Department of Labor & Industries (L&I) contractor-registration open-data registry — public, authoritative license data.

What can I search by?

An L&I contractor registration/license number (exact) or a business/principal name (substring). Both return the matching licenses, deduped by license number.

What fields do I get?

License number, business name, principal name, license type, status, effective and expiration dates, city, address, ZIP, and phone when published.

How am I charged?

Pay-per-result — per license match returned. No charge for searches with no results.

Is this personal data?

It's public professional-license data (business and registration records as L&I publishes them); we add no personal/PII enrichment.

How current is it?

It reflects the L&I open-data registry, which the state refreshes on business days.

Which actor to choose

Part of the contractor-license verification suite — pick the one that fits your goal:

• California Contractor License Lookup & Verify (CSLB) — You need a California contractor verified — by license number, business, or owner/personnel name (CSLB).
• Florida Contractor License Lookup & Verify (DBPR) — You're verifying a Florida contractor or tradesperson — type, status, expiration, county (DBPR).
• Louisiana Contractor License Lookup — You want the full Louisiana roster — 50,000+ commercial, residential & specialty licenses as data (LSLBC).
• Multi-State Contractor & Trade License Lookup — You don't know the state, or want the same contractor checked across WA, OR, TX & CT in one run.
• Nevada Contractor License Lookup & Verify (NSCB) — You need a Nevada contractor's status, trade classifications, bond & principals (NSCB).
• New Mexico Contractor License Lookup & Verify (NM CID) — You're verifying a New Mexico contractor — license #, status, city/ZIP, expiry (NM CID).
• North Carolina Contractor License Lookup & Verify (NCLBGC) — You're verifying a North Carolina general contractor — classification, status, expiration (NCLBGC).
• Oregon Contractor License Lookup & Verify (CCB) — You're verifying an Oregon contractor — status, bond, insurance & RMI (CCB).
• South Carolina Contractor License Lookup & Verify (SC LLR) — You're searching or verifying South Carolina contractors — by name, license, city, or classification (SC LLR).
• Tennessee Contractor License Lookup & Verify (TN DOCI) — You're verifying a Tennessee contractor or tradesperson — type, status, city & county (TN DOCI).
• Texas Contractor & Trade License Lookup (TDLR) — You're verifying a Texas electrician, HVAC or trade license — type, expiration, county & owner (TDLR).
• Virginia Contractor License Lookup (DPOR Bulk) — You want the full Virginia roster — 50,000+ Class A/B/C and trade licenses as bulk data (DPOR).
• Alabama Contractor License Lookup & Verify (LBGC) — You're verifying an Alabama general contractor — classification, city, phone, expiration (LBGC).
• Arkansas Contractor License Lookup & Verify (ACLB) — You're verifying an Arkansas contractor — validity, type, expiration, city & county (ACLB).
• Michigan Contractor License Lookup & Verify (LARA) — You're verifying a Michigan builder or trade contractor — type, status, expiration (LARA).
• Minnesota Contractor License Lookup & Verify (DLI) — You're verifying a Minnesota residential contractor — subtype, status, expiration, enforcement flags (DLI).
• Massachusetts Construction License Lookup & Verify (CSL) — You're verifying a Massachusetts Construction Supervisor License — type, status, expiration (CSL).