ALSTOM SIGNALING OPERATION LLC
Construction Contractor license ALSTOSO843D4 issued by the Washington State Department of Labor & Industries. Status shown as of August 17, 2026.
This license is expired. It lapsed on September 1, 2022, 1446 days ago. A contractor whose license has expired is not currently authorized to perform construction contractor work in Washington, and work performed under a lapsed license can affect your permits and your insurance claim.
| License holder | ALSTOM SIGNALING OPERATION LLC |
|---|---|
| Business name | ALSTOM SIGNALING OPERATION LLC |
| License type | CONSTRUCTION CONTRACTOR |
| License number | ALSTOSO843D4 |
| Status today | Expired |
| Expiration date | September 1, 2022 |
| City | Clayton |
| County of record | Clayton |
| Phone on file | 8166504628 |
| Classifications | CONSTRUCTION CONTRACTOR |
| Board status | Expired |
| Issuing authority | Washington State Department of Labor & Industries |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the L&I public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at L&I → File a complaint
There are 94 licensed construction contractors on record in Clayton County. Compare them all →