Greenman-Pedersen, Inc. (GPI) was established in 1966 as a two-man operation and has since grown into a major consulting firm with offices all over the east coast, from Florida to New Jersey. GPI's main corporate offices are located in Babylon, NY and Lebanon, NJ. GPI specializes in construction management, survey mapping, inspections and consulting. With many offices located around the District of Columbia, particularly in Maryland, one of GPI's key customers is the federal government. GPI has been pre-qualified as a federal government contractor by the General Services Administration, which streamlines the proposal process for government agencies seeking to work with GPI.