Who we are

Koellner Steel has been a trusted name in the Northern Rivers since 1974. Founded by Tony and carried on by Mick in 1990, the business is now led by Josh, the third generation to guide the company forward. This family legacy has been built on reliability, quality, and pride in workmanship.

Our team brings together decades of expertise across fabrication, design, rigging, and project management. From AutoCAD specialists to experienced steel erectors and certified welders, every member is committed to delivering safe, efficient, and high-quality results. Beyond steel, we’re proud to support our local community through sponsorships and charitable work, while continuing to invest in new technology to shape the future of fabrication.

Three generations of men standing in front of a building with a sign that reads 'Koellner Steel Structural Steel Fabricators'. They are dressed in yellow and green work shirts and work boots, posing for the photo on a gravel surface.

our team

Group of workers standing in front of a green industrial building labeled 'Koellner Steel', wearing yellow and dark green uniforms, with a forklift and building structures visible.

Contact us

Send us your architectural or engineering drawings for a quotation today.