The Steel Tank Institute has been the leader in developing storage tank technologies for decades. Our tank standards and specifications are cited in regulation throughout the United States and in demand by customers worldwide. View descriptions of our licensed technologies.
If you want the business advantages of STI's proven tank technologies, join our STI Shop Fabricated Atmospheric Tank membership section.
STI Licensed Shop-Fabricated Tank Membership Application
The same benefits and value are yours, no matter what steel fabrication product you manufacture. Education, advocacy, marketing and more--all are provided to STI/SPFA members.
Field Erected, Pressure Vessel, Water Pipe and Special Fabrication Membership Application
Suppliers of products and services to the steel fabrication industry play an important role in STI/SPFA. Support your customers and your industry as an Affiliate Member.
Affiliate Membership Application
Not a manufacturer or a supplier, but need to keep up with the latest in the steel fab industry? We have a special status category for individuals such as regulators, architects, consultants, inspectors and engineers.
Industry Associate Status Application
Questions? Call 847-438-8265 or email us for more information.
Receive updates from the STI/SPFA on important industry issues for fabricators of storage tanks, pressure vessels, water pipe, and special products, including safety information, regulatory issues, education opportunities, and more.
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Steel Tank Institute/Steel Plate Fabricators Association (STI/SPFA)
944 Donata Court
Lake Zurich, IL 60047
Phone: 847-438-8265 | Fax: 847-438-8766