Washington Contractor Registration, Bond & Insurance Intelligence

Snapshot metrics

Market findings

• L&I General is a unique-ID contractor file: 160,923 rows and 160,923 distinct ContractorLicenseNumber values. Construction contractor is the dominant type; electrical, plumbing, and elevator contractor businesses are in the same file.
• Exact ContractorLicenseNumber joins produce a three-layer graph. Bond and insurance extracts do not cover every general row; a missing row is not proof the contractor is unbonded or uninsured.
• L&I publishes source-native ACTIVE/EXPIRED/SUSPENDED status plus separate bond impairment and insurance cancel/expiration dates. Status is not quality. A current filing as-of the source clock is not a TrustHub guarantee.
• UBI is present on the L&I general row and is a cross-agency business identifier. DOR Business Lookup is search-only with no bulk file. UBI is not a contractor registration.

Regulatory map

Model LNI_CONTRACTOR_REGISTRATION_PLUS_TRADE_LICENSES. Primary regulator: Washington State Department of Labor & Industries.Registers construction contractors (RCW 18.27). Licenses electrical (RCW 19.28), plumbing (RCW 18.106), and elevator contractors. Publishes bond and liability-insurance filings on the same contractor identity.

Use source-native L&I contractor registration/license number. Construction contractors are registered; electrical and plumbing contractor businesses in this file are licensed contractor businesses, not person certificates.

Construction contractors are registered under RCW 18.27. The Socrata files still label the unique ID ContractorLicenseNumber. Electrical and plumbing contractor businesses in this extract are licensed contractor businesses, not person certificates.

Research a Washington L&I contractor

Public identity is WA-LNI:{ContractorLicenseNumber}. UBI is a separate exact identifier. Results are capped and sorted alphabetically or by query relevance — never by bond amount, insurance amount, or enforcement count.

General vs specialty

Source-native types: CONSTRUCTION CONTRACTOR (148,557) · ELECTRICAL CONTRACTOR (9,186) · PLUMBING CONTRACTOR (3,059) · ELEVATOR CONTRACTOR (121). Specialty values: 86. GENERAL is the dominant construction specialty. Product families are labels only — they are not a ranking.

Status

Source-native field ContractorLicenseStatus. ACTIVE is not Verified. SUSPENDED is not permanent revocation. EXPIRED is not discipline. Registration status is not quality.

• ACTIVE: 75,823
• EXPIRED: 61,083
• SUSPENDED: 9,731
• RE-LICENSED: 9,349
• OUT OF BUSINESS: 4,696
• INACTIVE: 131
• SUPERCEDED: 94
• PASSED AWAY: 15
• REVOKED DUE DEPT ERR: 1

Bond evidence

176,920 bond rows for 82,635 contractor IDs.56,777 IDs have multiple bond records. 0 orphan bond IDs are kept. No bond row is not unbonded.

CURRENT_FILING_AS_OF when BondEffectiveDate <= as_of, BondCancelDate empty or after as_of, BondExpirationDate empty or >= as_of, and BondImpaired is not Y. Not a TrustHub guarantee.

Liability insurance evidence

77,005 insurance rows for 70,953 contractor IDs.Insurance extract is much smaller than the general file and is concentrated on ACTIVE contractor statuses. Completeness of non-active insurance history is not established. No insurance row is not uninsured.

CURRENT_FILING_AS_OF when EffectiveDate <= as_of, CancelDate empty or after as_of, and ExpirationDate >= as_of. Not a TrustHub guarantee the contractor is insured.

Three-layer exact graph

Join key: ContractorLicenseNumber exact. Name matching is not used. Bond + insurance is not a Trust Score.

UBI / business identity

UBI is on 160,923 L&I general rows (149,153 distinct). UBI is not a contractor registration. Business active is not registration current. Department of Revenue Business Lookup is open search only — no bulk file was acquired.

Principals

250,349 principal rows on 146,379 contractor IDs. PrincipalName is owner, member, partner, or corporate officer associated with a registered license number. People are not published as profiles. A business principal is not a qualifying license unless the source says so.

Enforcement / public works

Debarment: 703 records on the official L&I list, with License and UBI columns. Attach only on exact identity. Name-only is UNSAFE. Debarment is not an all-purpose contractor ban. Debarred contractors list.

Public-works project details: 347,082 rows keyed by prime UBI. Affidavits: 1,192,380 rows, 1,176,254 with a prime license. Award is not quality. Vendor is not contractor registration.

Consumer process

Confirm live status on L&I Verify. Report unregistered or fraudulent contracting via Report a contractor or1-888-811-5974. Complaint bulk was not found. A complaint is not a violation. No complaint found is not a clean record.

Public business contacts

Phones PUBLIC_ELIGIBLE: 160,819 (WA_LNI_CONTRACTOR_PHONE). Addresses PUBLIC_ELIGIBLE: 160,923 (WA_LNI_BUSINESS_ADDRESS). Email/website: NOT_IN_SOURCE. Principal names are relationship evidence, not person contact pages.

Evidence depth

What we don't know

Unknown is not zero. Missing is not zero.

• City/county contractor licenses and permits: NOT_ACQUIRED
• Individual electrician/plumber certificates: NOT_ACQUIRED_PERSON_HEAVY
• Complete contractor complaint census: UNKNOWN
• Complete infraction/citation bulk: HTML_SEARCH_ONLY
• Filings after the Socrata source clock: UNKNOWN
• Contractor email and website: NOT_IN_SOURCE

Semantic rules

• CONTRACTOR REGISTRATION != QUALITY
• GENERAL CONTRACTOR != SPECIALTY CONTRACTOR
• UBI != CONTRACTOR REGISTRATION
• BOND RECORD != ENDORSEMENT
• INSURANCE RECORD != SAFETY
• BOND + INSURANCE != TRUST SCORE
• NO BOND ROW != UNBONDED
• NO INSURANCE ROW != UNINSURED
• EXPIRED POLICY != DISCIPLINE
• COMPLAINT != VIOLATION
• PUBLIC WORKS AWARD != QUALITY
• PERSON TRADE CERTIFICATE != CONTRACTOR BUSINESS
• DEBARMENT != ALL-PURPOSE CONTRACTOR BAN
• SUSPENSION != PERMANENT REVOCATION
• MISSING != ZERO
• NO TRUST SCORE
• NO PAID RANKING

No Trust Score. No paid ranking.

Always confirm on L&I Verify. Labor & Industries.