St. Paul Foundry is an established American manufacturer specializing in high-quality brass, bronze and aluminum sand castings. With roots dating back to 1869, the company has more than 150 years of foundry experience and continues to serve demanding commercial, military, aerospace and industrial markets from its facility in St. Paul, Minnesota. The foundry produces castings for prototypes, short production runs and higher-volume requirements, with capabilities extending from small components to castings weighing approximately 1,000 pounds or more. Its expertise includes complex non-ferrous castings, green-sand molding, air-set molding and advanced casting process control. Beyond casting, St. Paul Foundry provides a broad range of value-added services, including machining, plating, polishing, heat treatment, non-destructive testing, impregnation, HIP processing, coatings, marking and assembly. Advanced quality and production systems support consistent results and demanding specifications. AS9100D and ISO 9001:2015 certification reflects the company's commitment to quality and process control. St. Paul Foundry focuses on technical expertise, responsive service, reliable lead times and cost-effective casting solutions for challenging applications.