NMC, established in 1887. NMC is the area's most complete mechanical contracting company. Performing installation involving its own piping, plumbing and sheet metal. Equipment setting, machine and elevator work as well as complete service for mechanical andelevator installations. NMC is recognized by DE Journal and Engineering News Record as being in the "Top 75 Mechanical Contractors in the Nation," and is included in the "Greater Nashville 100," a recognition of Nashville's largest and best companies.