Everywhere you need us

Corporate Office

1709 SE 3rd Ave.
Portland, OR 97214
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OEG Mid-Valley Office

483 Shelley St
Springfield, OR 97477
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Friberg of Oregon

(International Projects)
2340 SE Gladstone Street
Portland, OR 97202
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Friberg of Washington

4001 132nd Place NE
Marysville, WA 98271
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ISG Packaged Controls Manufacturer

3600 SE Columbia Way, Building #50
Vancouver, WA 98661
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NORTHWEST MDU CSG OFFICES

Oregon

• Oregon Electric Group
• Knife River
• International Line Builders
• Loy Clark Pipeline
• Wagner-Smith Equipment Co.

Washington

• Oregon Electric Group
• Knife River

Montana

• Knife River
• Rocky Mountain Contractors, Inc.
• Bitter Creek Pipelines, LLC

Idaho

• Knife River