Updated: Apr 19, 2026
Location
Address
PO BOX 216, Winthrop, WA, 98862
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Ingrain Construction
Ingrain, Winthrop, Po Box 216, Winthrop, WA (Owned by: Milligan, David Meredith) 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 Ingrain, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Ingrain Services
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Ingrain Contact Information
Phone Number: (808) 755-5745
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Address: PO BOX 216, Winthrop, WA 98862
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Verified License
BuildZoom confirmed this contractor's license
Ingrain License info
Verified License
| License # | INGRA**760OM |
| 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 Ingrain at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | INGRA**760OM |
| 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 Ingrain 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 | Liberty Mutual Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Lexon Ins Co |
| Bond Value | $30,000 |
Ingrain Employees
DM
David Milligan
Partner/Member
MM
Milligan, David Meredith
Owner