Northwest Pipe Company is a leading manufacturer of welded steel pipe and tube products.

The Water Transmission Group is the largest manufacturer of engineered steel pipe water systems in North America. With five Water Transmission manufacturing facilities, the Group is positioned to meet North America’s growing needs for water and wastewater infrastructure. The Water Transmission Group serves a wide-range of markets and their solution-based products are a perfect fit for applications including: water transmission, plant piping, energy, tunnels, river crossings, structural, industrial and construction.

Permalok’s interlocking pipe joining system complements and expands Northwest Pipe Company’s offerings by providing alternate joint solutions to their already comprehensive product line.

The Tubular Products Group operates three technologically-advanced ERW (Electric Resistance Weld) mill facilities. Tubular Products portfolio serves a wide-range of markets and its quality certified pipe and tube products are good for applications including: oil and gas, structural industrial, fire protection, low pressure and agricultural.

Our Monterrey subsidiary, Northwest Pipe Mexico SA DE CV, works in conjunction with our Saginaw, TX operations to offer integrated engineered solutions for industrial / municipal applications. They specialize in manufacturing A.S.M.E. pressure vessels, tanks, steel pipe and miscellaneous metals fabrication with an emphasis on water treatment and process equipment for energy and industrial sectors.