Humphrey Mechanical was initially formed to handle large government infrastructure projects. HMI performs jobs of all sizes and complexities. Many of these assignments involve massive piping, metal components and massive machinery. The President of HMI, Otis Marshburn, has built a team of highly skilled managers and technicians to over see the job assignments. HMI is headquartered out of Jacksonville, North Carolina. Most jobs performed by HMI are within the state of North Carolina.