Washington business filings & licenses
40 verified facts, with the agency’s wording and source links.
Business filings
Licenses in Washington
- Contractor0 verified facts
- Electrician14 verified facts
- Plumber16 verified facts
- HVAC0 verified facts
- Notary0 verified facts
- Real estate0 verified facts
- Cosmetology0 verified facts
- Barber0 verified facts
- Nursing0 verified facts
- Insurance0 verified facts
- Liquor0 verified facts
- Food truck0 verified facts
- Child care0 verified facts
- General contractor10 verified facts
Related resources
Last verified 2026-10-24.
Official sources (8)
- https://lni.wa.gov/licensing-permits/electrical/electrical-licensing-exams-education/master-electrician-certificate
- https://lni.wa.gov/licensing-permits/electrical/electrical-licensing-exams-education/electrician
- https://app.leg.wa.gov/RCW/default.aspx?cite=19.28.191
- https://www.lni.wa.gov/licensing-permits/plumbing/plumber-certification/get-or-renew-your-certification
- https://lni.wa.gov/licensing-permits/plumbing/plumber-certification/
- https://lni.wa.gov/licensing-permits/plumbing/licensed-plumbing-contractor/licensing-requirements
- https://www.lni.wa.gov/licensing-permits/contractors/register-as-a-contractor/
- https://app.leg.wa.gov/RCW/default.aspx?cite=18.27.060
Not legal or tax advice. Confirm with the official agency before filing.