Founded in 1976 by George McNab to serve the growing demand for precision aerospace components, Mac Machine Company Inc. has since expanded its manufacturing capabilities to serve the defense, commercial aircraft, and medical diagnostics and implant industries. Mac Machine provides clients like Honeywell, Northrup Grummon, Sandia National Laboratories, and Zimmer Medical with a variety of precision parts, assemblies and weldments, all designed and produced at its 20,000-sq-ft facility in Baltimore, Maryland.