Updated: Apr 16, 2026
Location
Address
P O BOX 507, Winthrop, WA, 98862
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Lost River Construction LLC
Lost River Construction LLC, Winthrop, Po Box 507, Winthrop, WA (Employees: Dietz, Philip E L, Dietz, Robin Stewart, and Joe Sprauer) holds a Construction Contractor, General license and 1 other license according to the Tukwila license board.
Their BuildZoom score of 94 ranks in the top 24% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Lost River Construction LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Lost River Construction LLC Services
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Lost River Construction LLC Contact Information
Phone Number: (509) 849-6959
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Address: P O BOX 507, Winthrop, WA 98862
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Verified License
BuildZoom confirmed this contractor's license
Lost River Construction LLC License info
Verified License
| License # | LOSTRCL984JR |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Lost River Construction LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LOSTRCL984JR |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Lost River Construction LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Cbic |
| Insured up to | $500,000 |
Bonded
| Bonded Agent | CBIC |
| Bond Value | $12,000 |
Lost River Construction LLC Employees
DL
Dietz, Philip E L
Partner/Member
DS
Dietz, Robin Stewart
Partner/Member
JS
Joe Sprauer
Partner/Member
PD
Philip Dietz
Partner/Member
RD
Robin Dietz
Partner/Member
SJ
Sprauer, Joe
Partner/Member