Over the years, Penn Metal's product lines broadened to include lockers, shelving and even aircraft landing mats. A reputation for quality fabrication spread, and the company's influence became nationwide. In the 1950's, the name was shortened to Penco Products and the plant and offices were expanded to a modern facility in Oaks, Pennsylvania, near Valley Forge, PA.

Penco became a subsidiary of Vesper Corporation in 1979 and continued to grow. In 1994 the company added a manufacturing plant in Salt Lake City, Utah. In 2001, the East coast manufacturing facilities were moved from Oaks to a 400,000 square foot manufacturing facility in Hamilton, North Carolina, allowing significant room for expansion. The corporate headquarters remains in Pennsylvania.

The need for storage products is universal, and Penco's markets span the spectrum of industrial, service, governmental and institutional organizations. Shelving and pallet rack products are popular with warehousing and manufacturing applications, ranging from a few units to multi-level installations. Lockers are widely used in educational facilities, fitness centers, health care, commercial and industrial locations. Other products such as storage cabinets, work benches and shop furniture are used wherever material gets shipped, received or stored.

Penco's products are available through a nationwide network of distributors, serviced by a team of District Sales Managers. Penco's mission is to provide customers with value in the form of the finest storage products available.