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Adelanto, California

Atchison, Kansas

Bossier City, Louisana

Denver, Colorado

Houston, Texas

Monterrey, Mexico

Parkersburg, W. Virginia

Pleasant Grove, Utah

Portland, Oregon

Vancouver, Washington (Headquarters)

Saginaw, Texas

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Northwest Pipe Company manufactures and markets welded steel pipe in two business segments. In its water transmission business segment, the company is a leading supplier of large diameter, high pressure steel pipe products used primarily for water transmission in the United States and Canada. In its tubular products business segment, the company manufactures smaller diameter, electric resistance welded steel pipe for use in a wide range of construction, agricultural and industrial applications. The company also produces galvanized fenced framework and innovative traffic sign support systems.



Headquartered in Vancouver, Washington, the company operates manufacturing plants in Portland, Oregon; Denver, Colorado; Atchison, Kansas; Adelanto, California; Bossier City, Louisiana; Houston, Texas; Saginaw, Texas, Pleasant Grove, Utah and Parkersburg, West Virginia.

Our Thompson Tanks (Monterrey, Mexico) division produces high quality liquid propane gas tanks.