A. M. Castle & Co.

In 1890, Alfred Martin Castle—a bold, 24-year-old entrepreneur with a vision—set out to solve Chicago’s manufacturing needs.

Armed with determination and a horse-drawn wagon, he delivered raw materials straight to factories and shops, cutting through the congestion of the city and laying the foundation for what would become A. M. Castle & Co.

Over 130 years later, we’re still driven by that same entrepreneurial spirit. From a one-man operation to a global supply chain leader with over 30 branches across four continents, A. M. Castle & Co. continues to adapt, innovate, and deliver solutions for industries worldwide.

For decades, A. M. Castle & Co. operated under the trade name “Castle Metals”—a trusted name in the metals industry.