FABRICATING THE TOUGHEST STEEL PROJECTS SINCE 1975

Rainier is pleased to announce the award of the I-405 Renton to Bellevue Corridor Widening and Express Toll Lanes project.

READ MORE

Rainier Welding is an award-winning, full service, AISC-Certified fabricator of steel and aluminum.

PROJECTS

BUILD YOUR NEXT PROJECT WITH RAINIER

AISC Certification sets a standard for the steel industry. Companies that are AISC Certified have been through a rigorous initial evaluation, and are subject to yearly reviews. An independent auditing company confirms that companies have the personnel, knowledge, organization, equipment, experience, capability, procedures, and commitment to produce the required quality of work for a given category, such as our fabricating plant.

A blue, white, and red seal with the letters ‘SBA,’ the U.S. Small Business Administration name, and the text ‘Service-Disabled Veteran-Owned Certified.
A circular badge featuring the silhouette of Washington State in an American flag design, a banner reading ‘CERTIFIED,’ and the words ‘Veteran Owned Business’ around the edge.