Castle Machine Company

Castle Machine Company is a second-generation, family-owned precision machine shop located in Greencastle, PA. With decades of experience in the industry, we specialize in CNC machining, turning, milling, surface grinding, and 5-axis capabilities. Our shop is equipped to handle everything from tight-tolerance prototypes to small and mid-size production runs, serving customers across aerospace, defense, energy, and industrial sectors. After stepping into leadership in 2023, our team continues to honor our founder’s legacy by delivering dependable quality, personalized service, and a relentless commitment to getting the job done right. Our strength lies in solving complex manufacturing challenges, maintaining fast turnaround times, and forming lasting partnerships built on trust and results. At Castle Machine Company, we don’t just make parts — we make precision personal.