Kirby Building Systems began in 1955 as a general contracting firm in Houston, TX. By 1959, the company began to sell and fabricate its own line of steel buildings under the name of Mes -Tex Steel Buildings, with all product produced out of the Houston, TX plant. The business grew steadily, and within two years, the company began to sell metal buildings on a regional basis.        

By 1964, a growing network of Authorized Builders had enabled the company to expand nationally. In 1966, the company was purchased by Kirby Industries, and was renamed Kirby Building Systems, Inc., and eventually moved production to Portland, TN.  

In August, 2007, Kirby Building Systems was acquired by the Nucor Corporation , a Fortune 500 Company and was renamed Kirby Building Systems, LLC.  Effective January 2017, Kirby and Gulf States Manufacturers joined forces to become one brand with plants located in Tennessee and Mississippi.

Kirby Building Systems ranks today as one of the top 10 manufacturers of metal buildings in the world, and is an industry-leading manufacturer of custom-engineered, high-quality and cost-effective metal building systems. With a tradition of excellence and industry experience dating back over 60 years, Kirby’s quality products include complete framing systems, wall and roof panel systems, and extended bay options – all engineered and manufactured by Kirby teammates.

Kirby’s customers and teammates alike are proud of the company, its products, and the level of service that Kirby provides today’s global construction.

MISSION STATEMENT

"Our goal is to take care of our customers. We are accomplishing this by being the safest, highest quality, lowest cost, most productive and most profitable steel and steel products company in the world. We are committed to doing this while being cultural and environmental stewards in our communities where we live and work. We are succeeding by working together."