D.A. International Casting Company is a privately held manufacturer and supplier specializing in castings, forgings, stampings, and fabricated components. Founded in 1996 by David Alan Kerrigan, the company has grown from a small Ohio casting operation into an established supplier serving more than 800 customers and maintaining an extensive inventory of products. D.A. International focuses strongly on railroad equipment and replacement parts, providing components for covered hopper cars, open-top hopper cars, box cars, auto racks, and railcar locking systems. The company also supplies industrial products such as bus bar clamps and cylinder ends. Its manufacturing and sourcing capabilities allow customers to obtain custom components and complete solutions tailored to specific requirements. D.A. maintains a dedicated quality assurance department and operates under an ISO 9001:2015 quality management system. With a commitment to quality products, responsive service, on-time delivery, and competitive value, D.A. International continues to support customers throughout the railroad and industrial markets.