Founded in 1978, M. J. Moran Inc. is a mechanical contracting firm in the United States. Based in Haydenville, Mass., it offers a range of services, such as plumbing, HVAC (heating, ventilation and air-conditioning) systems, process piping systems, high-pressure gas, steam systems, medical gas systems, design, build services and mechanical construction management. The firm s client list includes Top Flite/Callaway Golf, Milton Bradley, Suddekor, Smith College, Mount Holyoke College, Amherst College, Eaglebrook School, Northfield Mount Hermon, and the Cooley Dickinson Hospital, to name a few.