# Search 161,230 Washington contractor registrations — contractor-wa

> Search L&I's contractor registration data by licence number, UBI or business name.

## Search the register

Enter the licence number, the UBI, or the business name.

### Three things you can type

- **The licence number** — the one the law puts on the advert,
like `ECOSTSC758NN`. Letters and digits, as printed.
- **The UBI** — the 9-digit Unified Business Identifier the
state uses across L&I, the Department of Revenue and the Secretary of
State. One business can hold several licences under the same UBI:
161,230 registrations belong to 149,441 businesses.
- **The business name**, or part of it.

Every entry shows the licence, the bond, the insurance and the principals on
one page — plus whether the registration has ever been suspended.

Your search never reaches a server. It lives in the part of the address
after the `#`, which browsers do not transmit, and the lookup runs
in your browser against static index files.

**Finding nothing is itself an answer.** An
advert must carry a current registration number. A number that is not in this
file is not in the state's file either — and hiring an unregistered contractor
puts you outside the protection of the bond.

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Página: https://contractor-wa.pages.dev/search/
Fonte: Contractor registration, bond, insurance, principal and authorized-signer data — Washington State Department of Labor & Industries, via data.wa.gov
Recolha: 2026-08-20