A Square Systems Inc. is a third-generation family-owned small business based in St. Louis, Missouri, specializing in metal finishing and manufacturing support for various industries. They offer precious and semi-precious metal plating services including silver, gold, tin, nickel, electroless nickel, and copper plating. A Square provides individualized attention to customers' specific needs and production requirements, handling projects of all sizes. They are known for their expertise in selective plating technology and custom-built masking and plating solutions. Additionally, the company offers full-part manufacturing services with a network of trusted manufacturing partners, utilizing cutting-edge production technologies and techniques.