Founded in South Norwalk, CT, Beta Shim began as a small precision manufacturer dedicated to delivering high-quality metal shims and stamped components. Early on, the company gained national recognition for its work on military footwear insoles during the Vietnam War, developed in partnership with the U.S. Army to protect soldiers from punji stake injuries. This innovation helped position Beta Shim as a trusted supplier to defense and aerospace clients, including Sikorsky Aircraft.

Throughout the 1980s, Beta Shim faced the challenges of rising material costs and increased foreign competition, yet continued to excel, earning consecutive nominations for the U.S. Small Business Administration’s “Award for Excellence.” The company’s success has always been powered by its people—from engineers and tooling specialists to exceptional employees like Richard Stark, a blind deburring technician, and Al Lopez, a master toolmaker. In 1989, leadership passed from founder Michael Errico to John McCue, ushering in a new era of growth and diversification.

Today, Beta Shim combines traditional craftsmanship with modern CNC technology. Our facility houses both legacy presses (20–80+ tons) and advanced Amada CNC turret presses, enabling us to handle everything from high-volume runs to ultra-precise custom work. Backed by decades of experience and a commitment to aerospace-grade quality, Beta Shim continues to manufacture every part to the highest standards—without exception.