About Us

L. A. Simpson Machine Company is a precision machining and manufacturing firm based in Monroe, North Carolina, with more than 45 years of experience serving the aerospace, military, and nuclear industries. The company provides high-quality machining services for both large and small production runs, as well as prototype machining to support product development and engineering needs. L. A. Simpson Machine Company specializes in aerospace and military components, nuclear components manufacturing, custom saw guide manufacturing and repair, and contract machining. Additional capabilities include shop and field welding, engineering services, and emergency field support. Operating under an ISO-compliant quality assurance program, the company is committed to delivering superior quality, dependable service, competitive pricing, and on-time delivery for mission-critical applications.

Our Monroe facility houses over 15.000 square feet of CNC Machine tools and other process equipment. Over 180 years of experience.