Founded in 1966, Hammontree & Associates, Ltd. is a provider of a variety of environmental and ecological services. Based in North Canton, Ohio, the firm offers complete civil engineering services. The company specializes in various areas, including land development, transportation, structures, environmental engineering and surveying. Hammontree & Associates, Ltd. operates throughout the eastern United States. The firm also offers other services, such as subsidence monitoring, gas transmission layout, Marcellus addendum, rural area mapping, gas line staking and geotechnical/slope stability, among others.