Intraspectrum LLC
General · Winthrop, WA · License #INTRAL*951KR
Suspended since Jun 26, 2026
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
- Owner-verified — The business claimed this listing and verified ownership — free. Claim this listing
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License facts
Intraspectrum LLC is one of 103 General contractors registered in Winthrop, registered with WA L&I since 2005.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Jun 17, 2005
- Expiration date
- May 20, 2028
- Suspend date
- Jun 26, 2026
- UBI
- 602282290
- Business type
- Limited Liability Company
- Phone
- (509) 996-3220
- Location
- Winthrop, WA 98862
Source: WA L&I contractor registration — verified Aug 12, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
What the bond and insurance requirements mean for homeowners
To register as a general contractor in Washington, a business must file a $30,000 surety bond with the Department of Labor & Industries.
The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.
Principals
| Name | Start date |
|---|---|
| John P Blethen | May 19, 2005 |
What is a General contractor licensed to do in Washington?
A general contractor in Washington is registered with the Department of Labor & Industries to perform or oversee work in multiple building trades. General contractors can take on whole projects — remodels, additions, new construction — and can hire specialty subcontractors for individual trades. As a condition of registration, contractors in this category file a $30,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 103 General contractors registered in Winthrop.
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Browse the directory
Built from Washington State L&I public records, updated Aug 12, 2026. No star ratings or reviews — verification only.