Established in 1902, General Machine Works is York’s oldest operating machine shop, producing custom parts through CNC and conventional machining alongside engineering, repair, and finishing services. Still working from the Prospect Street building expanded in 1918, the family-run business carries multigenerational machining expertise and has continued making General Regulator parts since the late 1930s.
Halstead Machine IncFounded in 1979, Halstead Machine Inc. is a family-owned Newark, New York machine shop that produces custom, precision-machined parts for a diverse range of industries. The company focuses on high-volume and long-run machining, while also offering prototyping through its design team; it describes four generations of quality service.NEWARK, NY
I. Auman Machine CompanyFounded in 1947 by Irwin Auman in his father-in-law’s garage, I. Auman Machine Company has grown into a family-owned manufacturer specializing in precision CNC machining, inspection, and engineering support. The Lebanon, Pennsylvania, company built its early reputation machining alloy-steel castings for M60 tanks and now handles large, close-tolerance parts with equipment including a boring mill for pieces longer than 100 inches. Timothy Auman became the second-generation owner in 1986, and the business is continuing into its third generation under Jordan Auman’s leadership.LEBANON, PA
Columbus Machine Works, IncColumbus Machine Works is a Central Ohio machine shop founded by Mike Stacey in 1997, combining traditional shop-floor know-how with modern CNC manufacturing to make, repair and rebuild parts and equipment. The company grew from one antique lathe, one milling machine and one employee into a full-service operation serving customers for nearly three decades, including a distinctive specialty rebuilding M1 Garand op-rods and restoring related firearm components. Mike’s long-standing interest in historic machinery also led to the design and manufacture of the M.A.D.E. Ornamental Turning Lathe and the Lindow Rose Engine.COLUMBUS, OH
Brooklyn Machine & MfgFounded in 1923, family-owned Brooklyn Machine & Mfg. produces precision CNC-turned and milled component parts for heavy industry from its Cuyahoga Heights, Ohio operation. Nearly a century of machining experience is paired with large-capacity equipment, including a vertical turning center handling parts up to 52 inches in diameter and 48 inches tall.CLEVELAND, OH